Technical Reference and Installation Guide Series 3 ... · Technical Reference and Installation...

Targa Systems Division

Technical Reference and

Installation Guide

Series 3 Ethernet Data Transfer Unit

Targa Document 32002799 Revision Rev 10 Date August 2013

Targa Systems Division L-3 Communications Canada Inc. 2081 Merivale Road Ottawa Ont Canada K2G 1G9 Tel: 613.727.9876 Fax 613.727.1705

Targa Systems Division Ethernet DTU Installation Guide 32002799 Rev 10

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Revision History Table Preliminary June 2004

Rev 1 FTP Site Command Details October 2005

Rev 2 Quadrax Connector Pin Orientation February 2006

Rev 3 Configuration Utility and re-format October 2006

Rev 4 Quadrax Mating Connector P/N corrected May 2007 DOS files permissions clarified DNSMASQ.CONF information added Rev 5 Section 3.4 Power fail modified September 2007 Section 4 – Unit Configuration - Card write protect and MAC address added Appendix D - Alternate Connector data Rev 6 Section 4.5 - NFS Async/Sync option added February 2008 Rev 7 Section 4.5 - Samba option added March 2009 Rev 8 Section 2.2 – Quadrax pin typo Sept 2011 Section 2.4 – Supported PC Cards Section 4.4 – Erase Input update Appendix A-2 – added CARD FORMAT Rev 9 Section 1.3 CF card models added August 2012 Section 4.4 FAT SYNC Mode added Appendix A FTP Site Status – PC Card Error update FTP Site additional command list updated Appendix C FAT Sync & Card latency added Rev 10 F/W vs 2.3.2 Updates August 2013 Opening Access Door actions. Section 3.5 EXT3 file system support added - Section 4.6; A.2 & C.2 Card Safe to remove FTP site Status Section A.1 FTP site – Cardwipe updates Section A.2

All rights reserved. The contents of this publication may not be reproduced in any form without the written permission of Targa Systems Div L-3 Communications Canada Inc. The material covered in this manual is for information purposes and is subject to change without notice. L-3 Targa Systems assumes no responsibility for errors appearing in this manual. However, users finding errors in the course of referring to this manual are encouraged to contact the L-3 Targa Systems Sales at (613) 727-9876.

Copyright 2004,2005,2006,2007,2008, 2009,2010,2011,2012,2013 L-3 Targa S t


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Table of Contents 1. Introduction .......................................................................................................... 1

1.1 Scope ............................................................................................................... 1 1.2 DTU Overview .................................................................................................. 1 1.3 Model Numbers ................................................................................................ 1 1.4 DTU Architecture .............................................................................................. 2

2. Specifications ....................................................................................................... 3 2.1 Ethernet Interface ............................................................................................. 3 2.2 Panel/Hard Mount Unit ..................................................................................... 3 2.3 Desktop Unit ..................................................................................................... 4 2.4 PC Card............................................................................................................ 4 2.5 Environmental Conditions................................................................................. 4 2.6 Interconnections ............................................................................................... 5

2.6.1 Ethernet Connectors ................................................................................. 5 2.6.2 DTU Power & Auxiliary Signal Connector ................................................ 5 2.6.3 Desktop Auxiliary Signal Connectors ........................................................ 5 2.6.4 Auxiliary Input / Output Signals ................................................................ 6

2.7 MTBF Reliability Performance.......................................................................... 6 2.8 Maintainability/Logistics Support ...................................................................... 7

3. Targa NAS DTU Operations – Overview.............................................................. 7 3.1 PC Card Handlng ............................................................................................. 7 3.2 PC Card - Windows / DOS File Support ........................................................... 7 3.3 PC Card Data Reliability................................................................................... 8 3.4 Power Fail......................................................................................................... 8 3.5 Opening Access Door....................................................................................... 8 3.6 Security Erase .................................................................................................. 9 3.7 Monitoring DTU Output Messages ................................................................... 9

4. Unit Configuration and Network Controls........................................................... 10 4.1 User Configuration Utility................................................................................ 10

4.1.1 Configuration Utility Control Panel .......................................................... 10 4.1.2 Configuration Utility - Data Updates ...................................................... 10

4.2 DTU – Reboot Page ....................................................................................... 10 4.3 DTU-INFO Page ............................................................................................. 11 4.4 DTU Configuration Page ................................................................................ 12 4.5 DTU Network Configuration Page .................................................................. 14

4.5.1 Network Services .................................................................................... 15 4.6 DTU User Management Page ........................................................................ 18 4.7 DTD-INFO Page ............................................................................................. 19

5. Warranty & Repair.............................................................................................. 20 Figure 1 DTU Architecture ............................................................................................ 2 Figure 2 Ethernet Quadrax Connector Pin Orientation ................................................. 6 A FTP Site Command ...................................................................................... 21 A.1 FTP Site Status Command ........................................................................... 21 A.2 FTP Site Action Commands ......................................................................... 22 A.3 FTP Site Information Commands ................................................................. 23 A.4 FTP Site Additional Supported Commands .................................................. 24 B DHCP Control File - dnsmasq.conf............................................................... 25 C DOS FAT File System Integrity .................................................................... 26 D DR30-50A-2 Alternate Connector Details .................................................... 27


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1. Introduction 1.1 Scope

This manual describes the installation and operational features of the Targa Series 3 Ethernet Data Transfer Unit (DTU).

1.2 DTU Overview The Series 3 DTU (Data Transfer Unit) is a compact, self contained system, designed to store and retrieve MS-DOS file data from industry standard PC Card ATA FLASH (previously PCMCIA/ATA) and CF (Compact FLASH) memory cards, via industry standard 10/100 Ethernet interfaces. The Panel Mount DTU conforms to an ARINC CDU style, K=5 (DZUS mount) form factor that utilizes four DZUS ¼ turn fasteners for mounting. The Hard Mount DTU utilizes four captive fasteners for mounting. The Panel Mount and Hard Mount DTUs are equipped with an RTCA-DO-160C, Cat Z compliant 28Vdc power supply. The Desktop is equipped with a standard 110-220 Vac power supply. The DTU front panel door is opened by simply depressing the right side door latch slightly towards the centre, requiring thumb or finger pressure only. This action releases the door lock mechanism and as the door is opened, an optical sensor is tripped and the DTU interface performs a power shutdown of the PC/CF card to meet explosive atmosphere requirements. The Rugged Door option utilizes a quarter turn knob and thicker gasket material to provide a greater door seal against the elements. A "FLASH Memory" PC or CF, industry standard memory card provides the removable, hand or shirt pocket carry medium for transferring data between the DTU and the ground station. Any ground based computer system equipped with a corresponding PC/CF card socket and socket services software can be used to transfer data to or from the PC / CF card.

1.3 Model Numbers

PC Card Models

Description

DR30-50-2 DR30-50A-2 DR30R-50-2 DR32-50-2

Series 3 Ethernet DTU Panel Mount 28Vdc Series 3 Ethernet DTU Panel Mount (Altn Connector) 28Vdc Series 3 Ethernet DTU Panel Mount w/ Rugged Door 28Vdc Series 3 Ethernet DTU Panel Mount w/ LEDs 28Vdc

DR35-50-2 Series 3 Ethernet DTU Hard Mount w/ Rugged Door 28Vdc

DR39-50-0 Series 3 Ethernet DTU Desktop w/ LEDs 110-220Vac

CF Card Models

Description

DR30CF-50-2 DR32CF-50-2

Series 3 Ethernet DTU Panel Mount 28Vdc Series 3 Ethernet DTU Panel Mount w/ LEDs 28Vdc

DR39CF-50-0 Series 3 Ethernet DTU Desktop w/ LEDs 110-220Vac


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1.4 DTU Architecture A brief description of the DTU System Architecture is shown below (Figure 1):

Power Supply Built in Power Fail Detect with 50msec holdup circuit RS232 Interface Console port to attach terminal for DTU configuration Ethernet Interface 10/100 BaseT isolated drivers PPC 405GP Performance processor with integrated Ethernet support SEEP, ConfigFFS Storage of DTU configuration files ATA Interface PCMCIA/ATA compliant interface with additional circuitry for

Door Open Sensor, Card Detect and Card Power Control.

Series 3 Ethernet Data Transfer Unit Hard Mount with Rugged Door option


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2. Specifications 2.1 Ethernet Interface

Ethernet Compliance 10/100 BASE-T Address Protocol IPv4 Transport Protocol TCP, UDP Application Protocol TFTP, FTP, NFS, HTTP

IEEE Physical Address 00:11:1B:xx:xx:xx OUI for L-3 Targa 00:11:1B

Performance Data Reads 5 MBytes/sec - average data transfer rate FTP Data Writes 3 MBytes/sec - average data transfer rate FTP Startup Time 15 seconds (nominal – for PC Card to be mounted and

be available for user access) 2.2 Panel/Hard Mount Unit

Panel Mount Unit Standard DZUS rail mount per MS25221C, K=5 Case Size 1.75"h x 6.5"l x 5"w 45mm x 165mm x 127mm Front Panel 1.8"h x 5.75"w 45mm x 146mm

Hard Mount Case Size 1.75"h x 6.5"l x 6.2"w 45mm x 165mm x 157mm Front Panel 1.75"h x 5.5"w 45mm x 146mm

General Outline Drawing Refer to www.targasystems.com/s3-2000.htm Weight < 2Kg Cooling Passive, free air convection

Input Power - 28 Vdc RTCA/DO160C Cat Z, 6 watts max, 50 msec Holdup Normal Operation 22 - 29.5 Vdc (18 emergency low)

Ripple 2v rms Interrupt 1 sec (Unit Reset) Surge 50Vdc 50ms / 12vdc 30ms Undervoltage 10v 15sec, with unit reset

Abnormal Operation 20 - 32.2 Vdc Surge 80Vdc 100ms / 48Vdc 1sec Undervoltage 12v 7sec, with unit reset

Ethernet Connector Amphenol CTVP00RGQF9-5S MIL-DTL-38999, wall mount, shell size 9 with single 21-33385-51 Quadrax socket Material: Composite with electroless nickel finish

Mate Amphenol TV06RGQF9-5P or CTV06RGQF9-5P MIL-DTL-38999, straight plug, shell size 9 with single 21-33384-51 Quadrax pin. (C prefix = composite shell)

Pinout Refer to section 2.6

Power & Aux Connector MIL-C-38999/20MC35PN MIL-C-38999 Series 3, Rear mount, 22 pin contacts

Mate D38999/26FC35SN Pinout Pinout - refer to Section 2.7


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2.3 Desktop Unit Case Size 2.75"h x 12"l x 9.5"w approx. Weight 4 Kg Input Power 110-220 VAC, 50-60 Hz @ 10watts Ethernet Connector RJ-45 Pinout Refer to Section 2.6 Aux Connector 1 DB9F Console Port 2 DB9M Config Port Pinout Refer to Section 2.8 Environment Office: Temp 10°C to 45°C Humidity 10 – 85%

2.4 PC Cards PCMCIA/ATA Type II True IDE Mode Compatibility required Targa Approved Sandisk, Silicon Systems, SMART Modular, Apro Cactus Technologies Capacity PC Card ATA Capacities from 32 MBytes to 32 GBytes. Card Size 0.18"h x 3.37"l x 2.12"w 5mm x 85.6mm x 54mm Weight 40 g nominal Card Retention The memory card is secured in place via a robust

PCMCIA guide socket and the DTU front door. True IDE Mode is selected by the card when it powers up with the -OE signal grounded. Refer to your PCMCIA Card specifications to confirm it supports True IDE Mode. Full MS-DOS FAT File System compatible with DOS and Windows operating system. Includes support for FAT12/16/32, single partition, subdirectories, long filenames. NOTE: Dynamic Storage Format per Windows 2000 and XP is NOT

supported. When formatting the PC Card – select Basic Format

2.5 Environmental Conditions (Panel / Hardmount Units) Temperature Operating -40°C to +75°C MIL-STD-810E, Method 501.3 Storage -55°C to +85°C MIL-STD-810E, Method 502.3 Altitude 50,000 ft MIL-STD-810E, Method 500.3 Humidity 10-100% Condensing RTCA/DO–160D, Sec 6, Cat. B Shock Operating 40g, 11 ms, ½ sine RTCA/DO-160D, Sec 7 (modified) & MIL-STD-810E, Method 516.4 Vibration Dzus Mount PSD 0.04g2/Hz, 5-2000 Hz MIL-STD-810E, Method

514.4, Cat 10 Hard Mount PSD 0.1 g2/Hz,5-2000 Hz MIL-STD-810E, Method 514.4 Explosive Atm RTCA/DO–160D, Sec. 9, Cat. E Waterproofness RTCA/DO–160D, Sec. 10, Cat. W Sand & Dust RTCA/DO–160D, Sec. 12, Cat. D Fungus RTCA/DO–160D, Sec. 13, Cat. F Salt Spray RTCA/DO–160D, Sec. 14, Cat. S


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2.6 Interconnections 2.6.1 Ethernet Connectors

Signal DTU

38999 Quadrax

Desktop RJ-45

T568A Cross Over Cable

T568B Straight Cable

TX+ TX- RX+ RX-

1 2 3 4

1 2 3 6

White, Green Str Green White, Orange Str Orange

White, Orange Str Orange White, Green Str Green

See Figure 2 for DTU 38999 Quadrax Connector pin orientation 2.6.2 DTU Power & Auxiliary Signal Connector

Signal Pin Description

+28 VDC +28 RTN

12 13

Power Supply Input Power Supply Return

COM1 RX COM1 TX Reserved

Secure_Erase- BUSY+

UNIT_OK+ Config_Enable-

COM2 TX

2 3 4 5 8 9

16 17

RS232 Receive of Console Port RS232 Transmit of Console Port Reserved Input Security Erase Input, LVTTL active low DTU Busy Indicator, LVTTL active high PBIT Passed Indicator, LVTTL active high DTU Configuration Enable, LVTTL active low RS232 Transmit – DTU Status/Alarm Port

CaseGnd 1, 11, 14, 20,21

SignalGnd 6, 7, 10, 15, 18, 19, 22 2.6.3 Desktop Auxiliary Signal Connectors

DB9F - Signal Pin Console Port - Description COM1 TX COM1 RX

Gnd DCD-RTS-CTS

DTR-DSR

2 3 5

1-7-8 4-6

RS232 Transmit of Console Port RS232 Receive of Console Port Ground RS232 DCD-RTS-CTS (internal loop back) RS232 DTR-DSR (internal loop back)

DB9M - Signal Pin Config Port – Description Config_Enable- Secure_Erase-

Reserved BUSY+

UNIT_OK+ Gnd

1 5 6 8 9

2,3,4

DTU Configuration Enable, LVTTL active low Security Erase Input, LVTTL active low Reserved Input DTU Busy Indicator, LVTTL active high PBIT Passed Indicator, LVTTL active high Ground


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Figure 2 DTU Ethernet 38999 Quadrax Connector

Pin Orientation 2.6.4 Auxiliary Input / Output Signals

Inputs: (1,3)

Config_Enable- When pulled to signal ground enables DTU configuration mode. See Section 4.1

Secure_Erase- When pulled to signal ground activates the PC Card Secure Erase function. See Section 4.4

Outputs (2,3)

BUSY+ Indicates data transfers in process to the PC Card UNIT_OK+ Indicates DTU has passed Power-On BIT

Notes: 1. Inputs are internally pulled high (4.7Kohm)

2. Outputs are not capable of direct LED drive 3. LVTTL 3.3Vdc Voh min 2.4V @ -4ma

Vol max 0.4V @ 4ma Vil max 0.7v

2.7 MTBF Reliability Performance

DTU DR3x-50-2 82,750 hours AIC (45°C ) 27,580 hours ARW (45°C) PCMCIA/ATA Card > 300,000 hours Reliability Demonstration

Tx +

Rx -Tx -

Rx +


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2.8 Maintainability/Logistics Support In reviewing the DTU and Memory Card unit costs versus the costs in establishing a depot repair facility, Targa recommends the following:

a. DTU be specified as an LRU with return to Targa Systems for repair. b. PCMCIA/ATA card be specified as an LRU item and be declared as a

disposable item when faulty. Maintenance activities None Unscheduled Service Time to replace DTU estimated @ < 15 minutes Test Equipment a. Industry Standard PC with Ethernet Interface

b. DTU Test cable & 28Vdc power source BIT Features Basic unit health check performed via Power Up BIT

Tested elements: CPU; Memory; Ethernet controller and PCI-ATA bridge device;

Keying a. DTU rear connectors are keyed to ensure proper installation.

b. PCMCIA/ATA cards are keyed to ensure proper orientation.

3. Targa NAS DTU Operations – Overview Targa Systems Ethernet NAS DTU is a dedicated data storage device intended to be connected directly to a network to provide centralized data access and storage to a removable PC Card. The following is a brief overview of some of the operational features.

3.1 PC and CF Card Handlng Targa's Ethernet DTU does not provide any locking mechanism to prevent card removal during operation. Targa's Ethernet DTU is equipped with a door sensor to perform a card shutdown to meet explosive atmosphere requirements and to protect PC Card data integrity. To install the PC / CF card, slide the card into the slot until it is fully engaged in the socket and the eject button "pops" out. To remove the PC card, push the eject button to release the card from the socket. To remove the CF card, grasp and pull.

- W A R N I N G - Any resistance to card insertion is an indication that the PC / CF Card has been inserted upside down. Excessive insertion force may result in the Card key tab being damaged and the card may become trapped in the unit. Should this occur do not apply excessive force to the PC card ejector or damage will occur to the card ejector. To remove the PC Card, grip the visible end of the card and pull while rocking the card from side to side.

3.2 PC & CF Card - Windows / DOS File Support - FAT12/16/32, single partition with subdirectories and long filenames. - Dynamic Storage Format per Windows 2000 and XP is now supported. - DOS does not support “file lock constructs” to prevent multiple users

accessing the same file. - DOS does not support file ownership & permissions facilities that may be

required by Unix/Linux based clients in root filesystem applications.


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3.3 PC & CF Card Data Reliability The PC / CF cards provide enhanced data reliability via the following mechanisms: - All erase/write operations are performed in a closed loop operation to verify

data has been erased and programmed correctly with the proper voltage margins.

- Data is checked with a powerful Error Correction Code (ECC) that offers a high degree of data protection.

- Built in defect management with automatically sector reassignment based on detected memory errors.

3.4 Power Fail – DOS FAT File System Integrity Targa’s Series 3 Ethernet DTU has been designed with the following features to support reliable data storage to PC Cards via the DOS FAT file system.

- DTU Power Supply includes a power fail detect and a 50 millisecond hold up circuit to support DTU operations during power interruptions. - Targa has developed specialized caching algorithms to handle writing the FAT file system structures to disk, such that any modified file structures in cache are guaranteed to be written to disk when power fails. The user file data held in cache is not written to disk in a power failure and will be lost.

When a Power Fail is detected (Vin < 17Vdc), the following sequence occurs: - power fail is ignored if < 1ms in duration - any in-process PC Card I/O operations are completed - incoming Ethernet Data packets are not acknowledged - cached FAT file structures are written to the PC Card

Note: - in the event that input power recovers within the 50msec hold up period, the DTU will resume normal operations.

- if input power does not recover any write cached “file data” is lost. Notwithstanding these efforts, due to the nature of the FAT file system there are some unavoidable cases where subtle file system anomalies may occur. Refer to Appendix C for details: 1. Power fail during File Append.

2. Power fail during File Deletion. 3. FAT Sync and Write Latency 3.5 Opening Access Door

The DTU includes a Door Open Sensor, Card Detect and Card Power Control. Without these features, the data being written to the PC card or the DOS file structures may be corrupted if the card is removed. When a “door open” event is detected, the following sequence occurs:

Kill FTP and NFS processes Unmount the file system Write pending file system Structures and File Data to PC Card Turn Card Power Off & set safe to remove card in Site Status Note: If the PC Card is removed before the “safe to remove” status bit is set

the DTU will auto re-boot if it detects “door open” + “no PC card installed” and “unrecoverable ATA bus errors”.

When a “door close” event is detected, the following sequence occurs: PC Card is initialized If a valid file system is detected – the PC Card is mounted

NOTE: Depending upon unit activity, it may take the DTU several seconds to complete all pending data writes to the PC Card. Users should wait approximately 5-7 seconds after the door is opened before removing the PC Card, or verify “safe to remove” FTP site status bit (see A.1).


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3.6 Security Erase A limited number of the PC / CF Cards recommended by Targa Systems provide a high speed Security Erase function that effectively destroys the Card. This command should only be used in sensitive applications that require quick destruction of the user data and the functionality of the card. When the command is initiated, all user data and internal data structures are erased. For large capacity cards, this command will take approximately 10-15 seconds. The Cactus PC / CF cards as provided by Targa also support an internal “sanitization” process. Contact Targa technical support for more information.

If power is lost or the card is removed during this period, the customer accepts the risk of the original data not being erased. Executing this command voids all card warranties and will result in the PC card becoming non-functional.

3.7 Monitoring DTU Output Messages

The Targa NAS DTU is equipped with an RS-232 output monitor port (COM2) that can be used to assist users during systems integration, or to provide additional error/warning messages as part of systems operations. Refer to section 4.4 for details.


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4. Unit Configuration and Network Controls 4.1 User Configuration Utility

The DTU User Configuration Utility can be used to review and setup the Targa DTU operational parameters. To use the DTU / GSU embedded User Configuration Utility:

- the “Config Enable-“ input should be connected to ground, this activates the pre-set configuration IP Address and permits data updates. If not installed the current configuration data is displayed, but cannot be changed.

- Connect the DTU / GSU to the network and from your web browser go the DTU Configuration IP Address http://192.168.1.104

- Login with the “admin” User ID and Password (section 4.6). When logged in the “DTU Configuration Control Panel” and DTU INFO page will be displayed.

4.1.1 Configuration Utility Control Panel

Select the appropriate DTU page link to access each of the Targa DTU configuration pages. Refer to the individual configuration page in this section for details on page controls and supported features.

4.1.2 Configuration Utility - Data Updates

After changing or adding new DTU configuration data, the revised configuration data must be “Submitted” for the associated DTU configuration data files to be updated. When all of the changes have been made the Targa DTU must be rebooted for the new configuration data to take effect. Each DTU Configuration page, that provides access to user controlled parameters, will display the “Submit Changes” button:

Submit Changes: Used to submit the data as entered on the page into the DTU configuration files. When the configuration files have been updated, all DTU subsequent configuration pages will display the following message, until a DTU reboot has been perfromed: The DTU's configuration has changed. A reboot is required for the changes to take effect To initiate the DTU reboot – select “DTU Reboot” on the DTU Control Panel

Reset Clears the changes as entered on this page and reverts to the current settings.

4.2 DTU – Reboot Page

Click “Yes” to confirm DTU reboot. The DTU will reboot in approximately 30 seconds and will re-display the DTU-info page when reboot had completed


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4.3 DTU-INFO Page Displays Basic DTU information: Model#: Targa DTU Model # Serial#: DTU serial number

YYMMxxxxxx YYMM is the DTU production build date xxxxxx is the DTU MAC address

Firmware: DTU firmware version and part number System Time: Current time as set within the DTU

At power up defaults to 00:00:00 January 1, 1970 GMT DTU time can be set via 2 mechanisms

- FTP Site Command “SETTIME” - rdate server - time is requested at power-on (refer to the DTU

Network configuration page for details) Uptime: Length of time that the DTU has been operational.

Uptime can be used to determine if the DTU has experienced a power failure recovery since it was last accessed (ie: if your current directory has changed back to the default mount point due to system reboot)

Load Avg: Measure of average DTU CPU utilization use as a % over time for

the past: 1 min, 5 min, 15 min Load Avg can be used as a reference, during test and integration to determine if there are sufficient resources available to handle more client sessions or file transfers. Note: 1.0 = 100% and loads > 1.0 are normal.

Power State: Status of input power:

Good - input power within range Power-fail - input power is < 17Vdc and DTU is operating in

power-fail protection mode. Refer to Section 3.4 for more details.

DTD State Status of DTU access door and PC Card

Door Open Door Closed, Card Not Present Door Closed, Card Present


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4.4 DTU Configuration Page Displays Targa DTU identification data and provides access to the DTU features configuration parameters. DTU Identification:

Model#: Targa DTU Model # Serial#: DTU serial number Firmware: DTU firmware version and

part number

DTU Features Erase Input:

The Targa DTU supports a remote sourced Secure Erase input signal, used to activate the PC Card’s high speed security erase feature (if supported by the PC Card). As shipped default is disabled.

Enabled Disabled Secure Erase Input Signal: Active low input signal. Signal must transition from Off state (logic high) to On state (logic low) and be “logic low” for a minimum of 300msec for DTU to activate erase. If the signal is detected as “logic low” at power up or at door closure the signal is disqualified until it returns to the logic high state (for a minimum 300msec). (Erase input is sampled at 10 msec intervals) If the Erase Input feature is disabled the signal is not monitored. Refer to the FTP Site command “Cardkill” for details on PC Card Secure Erase.

Temp Alerts:

The DTU is equipped with an on-board temperature sensor that can be used to monitor the internal temperature. The temperature monitoring process can also, when enabled, issue an alert at a user specified temperature. Refer to the FTP Site command section for details on how to read unit temperature and detect a temperature alert. As shipped default is: disabled.

Enabled Disabled Temperature Alert at: Default: 90ºC Input range: 80ºC to 100ºC Temperature Alert value is used only when Temp Alert is enabled


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Firmware Upgrade The Targa DTU firmware is field upgradeable using a PC/CF Card as the transport mechanism. To upgrade DTU firmware:

1. The DTU “Config Enable-” input must be connected to ground. 2. A PC/CF Card installed with the new firmware code set stored in

targa-firmware.edtu updates without modifying unit configuration

targaconf-firmware.edtu updates with factory default configuration

Note: if both files found: targa-firmware.edtu takes precedence 3. Firmware upgrade process must be enabled and the “upgrade initiation”

mechanism selected. The options are: Disabled - firmware upgrade process disabled (as shipped default) On-boot - at DTU startup, the PC Card will be read and if either of

the specified DTU firmware files is detected, the DTU firmware will be updated.

Manual - Update process initiated upon receipt of the FTP Site “SITE UPDATEFIRM” command at which time, the PC Card will be read and if either of the specified DTU firmware files are present, the DTU firmware is updated

On-boot, Manual – either update processes can be used

Notes: - The firmware update process takes approximately 1 minute and can be monitored on the COM2 Log port. During the update process a stream of “….” will be output and a completion message issued. Any Error Conditions encountered during the update process are output on the COM2 Log port.

- Upon completion of the update process the DTU will reboot. - If the targa-firmware.edtu file is used, then the “Config Enable-“

input must be connected to ground for one subsequent reboot to enable configuration updates. If this is not done a DTU unconfigured error will be reported in FTP Site “Healthcheck” and DTU functionality may be compromised.

- To install previous firmware versions: Only the manual process will support loading “older” firmware and only with the targaconf-firmware.edtu file. This ensures synchronization of configuration files to the operational code set.

COM2 Log Verbosity The Targa DTU provides an RS-232 system monitor port designated COM2. Select the messages output level:

Low - Critical messages only Medium - Warnings, Errors and Critical messages High - all messages including debug messages

COM2 Log output: RS-232, 8bit ASCII, no parity, 1 stop bit at 9600 BAUD

Mount DTD Write Protected When checked the DTD (PC Card) is mounted as a “read only” device

FAT SYNC Mode When checked, DTU is placed into FAT SYNC Mode (see C.3 for details). As shipped default is disabled.


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4.5 DTU Network Configuration Page This page is used to configure the DTU network address and select the network services that are to be supported.

IP Network Configuration Parameters MAC Address: Unique ethernet hardware

address of the DTU IP Address: “The unique number that

devices use in order to identify and communicate with each other on a computer network utilizing the Internet Protocol standard (IP)”

Targa’s DTU supports IPv4. If the IP address is changed, a DTU reboot is required before the new IP address takes effect. If the DTU “Config Enable-” jumper is installed the Targa DTU will respond to either:

- DTU Network IP Address - DTU Configuration IP Address 192.168.1.104

(netmask 255.255.255.0) NOTE: Only one Targa DTU can be on a network segment when

“Config Enable” installed

Netmask Defines the structure of the IP address as a bitmask to indicate how many bits identify the sub-network, and how many bits specify the host addresses. If the Netmask is changed, a DTU reboot is required before the new Netmask takes effect.

Default Gateway A default gateway is used by the Targa DTU when an IP packet's destination address is outside the local subnet (thus requiring more than one hop of Ethernet communication). The default gateway address is usually the LAN's border router. If set to 0.0.0.0 packets with and address outside the local subnet are dropped.

Hostname Human-readable unique nick-name, by which the Targa DTU network attached device is known on the network.


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4.5.1 Network Services FTP Enabled FTP is always enabled.

File Transfer Protocol (FTP) is a reliable, connection-oriented protocol for exchanging files over any network that supports the TCP/IP protocol. There are two computers involved in an FTP transfer a server and a client. The Targa DTU functions as the FTP server. Refer to RFC 959 File Transfer Protocol for a description of the FTP protocol and commands.

FTP Port: 20 - FTP Data 21 – FTP Control Default Directory: /dtd at FTP login /dtd/part1 PC Card root directory Max number of Users: Input Range 1 – 8

The data transfer bandwidth of the Targa DTU is shared between “active” users. In order to ensure a minimum bandwidth is available to each user, a maximum number of users can be set. If more than eight (8) users are required for your application contact Targa Systems’ technical support team. Note: Anonymous FTP access is not supported – see User

Management. FTP Connection timeout:

FTP session timeout can be set via the FTP SITE IDLE command SITE IDLE <seconds> Targa DTU default is 900 sec= 15 min

min is 30 sec; max is 7200 sec

NFS Enabled NFS is always enabled. Network File System (NFS) is a file system protocol allowing a computer to access files over a network as if they were local disks. The Targa DTU, as the NFS server, “exports” a disk mount point which is then used by the NFS clients to mount the disk. NFS adopts a “stateless” model of transaction processing, meaning that the server does not maintain any historical information about any of the dialogues it may be running with remote clients. Targa DTU supports NFS Version 2 & 3 per RFC 1813

Data Mode Async NAS DTU will cache data permitting NFS Client to maximize throughput. In the event of a power failure, data in cache will be lost.

Sync NFS client will be forced to wait on each write() until the NAS DTU has successfully written the data to disk. This ensures that no data is lost in the event of a power failure.

NFS Port 2049

NFS clients file access permissions: User ID per username entry (per User Management sect 4.6) Group ID = gid101 (for write access when DTD permission

checking is enabled) (see sect 4.6) File permissions = 0777 DTD permission checking off (see 4.6) = 0775 DTD permission checking on

Note: - root privileges are not exported; “root” users (UID=0 GID=0) are mapped as UID=100 (admin) and GID=101 (writers).


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SMB Enabled SMB is always enabled (file server only) Implementation via Samba 3 Disk share = dtd_part1 Max # clients = same limit as FTP Workgroup: Windows workgroup name: default = Targa Max 32 characters, no spaces Public Access: When enabled (checked) permits public access and

sets user account to “admin” DHCP DHCP server

Enabled (as shipped default is disabled) Dnsmasq is an easy to configure DHCP/BOOTP server. Dnsmasq

supports static and dynamic DHCP leases and BOOTP/TFTP for network booting of diskless machines. Using the client MAC address, the dnsmasq.conf configuration file is used to define the DHCP client IP address as well as specify the associated client boot files. Then using TFTP the client can pull the target file(s) off the PC Card DTD installed in the Targa DTU. (Note: Targa TFTP support must be enabled)

Refer to Appendix B for details on the dnsmasq.conf configuration file. TFTP TFTP support is a user configurable parameter

Enabled (as shipped default is disabled) Trivial File Transfer Protocol (TFTP) is a very simple file transfer protocol which is relatively easy to implement in a very small amount of memory, originally developed for booting computers such as routers which did not have any mass storage devices. It is still typically used to transfer small files between hosts on a network or any other thin client boots from a network host or server. TFTP uses UDP (port 69) as its transport protocol, it cannot list directory contents and has no authentication or encryption mechanisms. Under TFTP each file transferred via TFTP constitutes an independent exchange. That transfer is performed in lock-step, with only one packet (either a block of data, or an 'acknowledgement') ever in flight on the network at any time.

TFTP Port Port 69 Default Directory: DTU maps TFTP “ / “ to “/dtd/part1”

ie: PUT abc /abc stores file abc in the PC Card root directory


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rdate Host Used to set Targa DTU time from a remote host If set non-zero and a valid IP address, the Targa DTU at power-up will issue the TCP/IP command to retrieve the date and time from the specified host on the network and set the local DTU system time. If there is no host response an error message is sent to the console (COM 1). Refer to RFC 868 for details.

syslog host

Used to log Targa DTU status messages to a remote host on the network. If set non-zero and a valid IP address, all Targa DTU log messages as are sent to the specified “syslog” host.


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Default Usernames / Passwords / UID

admin / targa1 / 100 user1 / targa1 / 101 user2 / targa2 / 102 user3 / targa3 / 103 user4 / targa4 / 104 Note: usernames & passwords

are case sensitive

4.6 DTU User Management Page

This page is used to manage user (client) access to the Targa DTU. A list of valid usernames and their file permission status is displayed and control function tabs provided to either edit user data, delete or add a user as outlined below: User Management Control Functions:

Edit: To change file permissions [Read Write] or [Read Only] To change user password

Delete Deletes username entry Add user Enter new username, user password and file permissions Select “Update User” or hit [enter] after “repeat password” entry to update the DTU user file.

DTD Permission Checking (for DOS formatted PC cards only):

Enabled File access for each user will be checked against the file permissions entry and access denied where appropriate. Access control on a directory or file by file basis is not supported by the PC Cards DOS / Windows FAT file system. Always enabled if PC Card is ‘ext3’ formatted.

Disabled All users have Read Write access

Usernames Valid user name: 6 – 32 alphanumeric characters only Maximum number of users: 8 + admin

Note: Admin - cannot be deleted - admin is the only user

with access to the Targa DTU configuration pages.

Passwords Passwords once entered cannot

be displayed Valid Passwords 6 – 32 alpha numeric characters only


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4.7 DTD-INFO Page Displays basic DTD information: Model#: DTD Model # Serial#: DTD serial number Firmware: DTD firmware version Size DTD size as reported by the PC Card DMA Reports if Direct Memory Access (DMA) data transfers are

supported by the PC Card DMA support is required to achieve optimum data transfer rates. Not all PC Card support DMA transfers.

Mount Point: fixed at /dtd/part1 - this is the “root” directory on the PC Card


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5. Warranty & Repair Targa products are designed, manufactured and tested to the highest industrial standards, however repair may become necessary sometime during the life of the unit. If you believe your Targa product requires repair, please follow these guidelines to ensure prompt, accurate service:

1. Carefully note the symptoms of the problem you are experiencing, along with

the model and serial number of the product.

2. Call Targa Customer Service Support at (613) 727-9876. A technician will discuss the problem with you. If factory service is necessary, Targa will issue a Return Authorization (R.A.) number and give you instructions for customer prepaid shipment of the goods for repair.

Products returned without an R.A. number, or returned C.O.D. will not be accepted by Targa.

3. If the product is covered under Targa's Limited Warranty, there will be no

charge for parts or labour.

4. If the product is not covered under Targa's Limited Warranty, there will be a minimum charge for each item returned and a purchase order must accompany any returned goods.

TARGA LIMITED WARRANTY Targa products are warranted for one year from the date of shipment. Targa will repair or replace, for the original purchaser only, any defects in material or workmanship in the system components. No other representations or warranties, expressed or implied have been made by Targa Systems. Targa does not warrant that the system components are merchantable or fit for any particular purpose. Targa Systems is not liable for any loss of profit or for any special, incidental or consequential damages resulting from the failures of its products. The sole liability of Targa Systems is to repair defects in Targa products. This warranty is rendered void if the unit has been changed or modified other than by written instruction from Targa Systems.


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A FTP Site Command This command is used by the DTU to provide additional services and information that are specific to the DTU. The DTU response is an ASCII string that uses comma (0x2c) to separate data fields and CRLF (0x0d0a) for end of the data.

A.1 FTP Site Status Command The FTP Site Status Command returns the current status of the DTU as eight hex ascii bytes over the FTP Control Port in the following order:

Word1/Byte2 Word1/Byte1 Word2/Byte2 Word2/Byte1

Bit Word 1 - Bit Mapped Status 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 *

Site Health Check failed, see DTU Error Code Door is open PC Card not installed, door closed PC Card installed, file system cannot be mounted (Card Error Code) PC Card fault detected, (Card Error Code) Power Fail Detect, unit preparing for shutdown Secure Erase activated via hardware input signal Secure Erase activated via software command PC Card Wipe (Overwrite) in progress Reserved Reserved Reserved Reserved Safe to Remove PC Card PC Card Media Change - door open/close detected* PC Card mount in progress, status update pending (bits 1–14 invalid) transitory condition, cleared on first client read

Code Word 2 / Byte 2 - PC Card Error Codes

30 31 32 A8

Invalid PC Card Type or PC Card I/O Fault Invalid File System - Corrupted FAT Invalid File System - NTFS Detected Sandisk Augered Card detected (Capacity = 0)

Bit Word 2 / Byte 1 - DTU Error 0 1 2

DTU over temperature alert (if enabled) Un-configured system (see section 4.4 firmware upgrades) Memory test failed

eg. Site Status returns 200 00000000 (No Error) Site Status returns 200 00020000 (Door Open) Site Status returns 200 00040000 (Door Closed, No Card)


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A.2 FTP Site Action Commands The FTP Site Action Commands initiate the DTU specific operation as follows over the FTP Control Port. The command parameters specified are a decimal value, ASCII string. Settime Set DTU Date and Time (seconds since Jan 1, 1970)

eg. Site Settime [seconds] returns 200 where [seconds] is an ASCII string Cardformat Formats the PC Card. Default is DOS file format. Optional format

Linux ‘ext3’ journaling file system. All data on the PC Card is lost. eg. Site Cardformat [dos] returns 200 Site Cardformat ext3 returns 200

Cardkill Initiate PC Card Secure Erase / Auger / Purge This issues a PC Card type specific command and is a one time, permanent operation rendering the PC Card inoperative. Only specific PC Cards are supported. Contact Targa for information on which PC Cards have this capability. F/W vs 2.3.2 added feature, such that if PC Card does not support an “Erase/Auger/Kill” function a Cardwipe is issued. To avoid accidental activation, the function requires a specific three byte sequence (49 103 90) to issue the Cardkill command. eg. Site Cardkill 49 103 90 returns 200 where 49 103 90 is the key sequence

Cardwipe Erase PC Card / Overwrite PC Card If no passed parameters, executes a sequence of ATA sector erase commands until complete card has been erased. eg. Site Cardwipe returns 200 If 3 byte overwrite pattern is provides, issues a non-destructive, three pass overwrite of the media using the specified data bytes. eg. Site Cardwipe b1 b2 b3 returns 200 where bx is overwrite data patterns

Note: After Cardwipe - PC Card must be re-formatted to be usable.

Healthcheck Initiate DTU Health Check and return status information as follows: Site Status (8 bytes, per previous page) Network Status (1 byte) Collision Count (16 bit value - decimal) Admin Logins (8 bit value - decimal)) Power-on Runtime (seconds, 32 bit value - decimal) Number of current FTP users (8 bit value - decimal) Number of current NFS sessions (8 bit value - decimal) Unit Temperature °C (8 bit value – decimal)

ie. Network Status 0=100Full, 1=100Half, 2=10Full, 3=10Half Collision Count = 0-65535 collisions since last Healthcheck Number of FTP/NFS running processes = 0-99

eg. Site Healthcheck returns 200 00000000,0,0,0,100,1,8,34 (healthy dtu, 100 full duplex, runtime 100 seconds, 1 ftp, 8 nfs, 34C)


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Updatefirm Triggers DTU firmware upgrade (see section 4.4) if - Manual upgrade enabled - PC Card with the specified files is installed Returns: update-firm issued. Command finished ok. or update-firm issued: signal=0(0) exitcode=1. (if updated failed)

specific error information output on COM 2 monitor port

A.3 FTP Site Information Commands The FTP Site Information Commands return the DTU specific information over the FTP Control Port as a string of ASCII bytes.

Gettime Get DTU Date and Time (seconds since Jan 1, 1970)

eg. Site Gettime returns 200 [seconds] where [seconds] is an ASCII string

Dtuinfo Read DTU Information:

Returns as an ascii string: Model Number, Serial Number, Firmware Rev eg. Site Dtuinfo returns 200 [ascii string]

where [ascii string] has comma separated fields

Cardinfo Read PC Card Information: Returns as an ascii string:

Model Number, Firmware Rev, Serial Number, Capacity (sectors) eg. Site Cardinfo returns 200 [ascii string]

where [ascii string] has comma separated fields

Cardops Read PC Card Structure: Returns as an ascii string:

File System Type, Mount Point, Size (KB), Remaining Space (KB) eg. Site Cardops returns 200 [ascii string]

where [ascii string] has comma separated fields A.4 FTP Site – Additional Supported Commands Help - generates a list of FTP SITE commands Chmod - change the permissions of files Idle - specifies FTP idle disconnect time Rateget - limit file “get” speed Rateput - limit file “put” speed Sync - synchronize files - flush any buffered write data to disk


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B DHCP Control File “dnsmasq.conf” The dnsmasq.conf file is a user created and controlled file that is stored on the PC Card in the DOS root directory (/dtd/part1). The format of the file is as follows:

# Configuration file for dnsmasq # Edited for use in Targa Systems Series 3 Ethernet DTU # # Dynamic range # # This is default pool of addresses that are assigned to # DHCP clients who ask for an address. The arguments # are comma separated: # # arg1: ip address. Lowest address in the pool. # arg2: ip address. Highest address in the pool. # arg3: length of the lease # # You *must* define at least one dhcp-range, even if you # don't intend to hand out dynamic addresses. Setting # lowest and highest IP Address to the same address is # sufficient. # dhcp-range=192.168.1.10,192.168.1.20,infinite # Static IP addresses # # To give a client with a specific MAC address a static # IP address use this dhcp-host line: # Static IP Address must be outside the Dynamic Range # dhcp-host=11:22:33:44:55:66,192.168.1.5 # # The static IP Addresses must be in the subnets addressed # by the DTUs ethernet interfaces # # Static IP address and BOOTP Client using netboot # # To get a BOOTP client to tftp/net boot a label must be assigned. # Then a dhcp-boot line specifies the file, boot host and the IP # address of the boot host. # Note: only 1 dhcp-host assignment per MAC address # dhcp-host=00:11:d8:85:11:83,192.168.1.4,net:seaking dhcp-boot=net:seaking,pxelinux.0,dtu,192.168.1.104 # # In the above example: # # 00:11:d8:85:11:83 - The client's MAC Address # 192.168.1.4 - The static address assigned to the client # net:seaking - A label. It must be unique. # pxelinux.0 - The bootfile for the client # dtu - The name of the boot server # 192.168.1.104 - The IP Address of the 'dtu' boot server # # Options that should not be changed: no-resolv no-poll no-hosts dhcp-leasefile=/var/run/dnsmasq.leases log-queries


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C DOS FAT File System Integrity Due to the nature of the FAT file system there are some unavoidable cases where subtle file system anomalies may occur, the result being the loss of available free space on the PC card, or an invalid directory entry.

C.1 Power fail during File Append. The sequence of operations during a File Append are:

1. a “write” is issued to write additional data to file 2. the current FAT cluster is full 3. A new FAT cluster is allocated to the file and linked into the file’s FAT

chain 4. Data is written to the new FAT cluster area 5. File size is updated in the FAT directory

If a power fail event occurs between steps 3 & 5, the file size will not be have been updated. The next time the file is opened, a fault condition is detected as the file size does not point into the last FAT cluster. The Targa DTU resolves this by removing the “extra” FAT cluster from the file FAT chain. File data that may have been written into this “lost” FAT cluster region should be considered suspect, but can be recovered using a disk recovery utility.

C.2 Power fail during File Deletion. The sequence of operations during a File Deletion are:

1. the file entry in the FAT directory is marked for deletion 2. file size is set to 0 3. the FAT cluster chain is processed to return the FAT clusters to the free

list If a power fail event occurs after step 2, but before step 3 completes, then all of the FAT clusters have not been added to the free list and are lost for future use.

C.3 FAT SYNC Mode - PC & CF Card Write latency Issues

The original PC / CF FLASH memory cards used in the Targa NAS DTU had very predictable data write latencies. The Targa DTU exploited this predictability by creating a cache of a small number of “metadata” blocks containing the DOS FAT structures that were held in memory until a write trigger event was detected (Door Open; Power fail; DTU idle timeout) resulting in the metadata being flushed to the PC / CF cards in < 100msec. With the increasing size of Flash memory device, the newer PC and CF cards no longer have the same predictable latencies and as such there is no guarantee that the cached writes can be completed before losing power. The symptoms of this occurring are an uninitialized (invalid) directory entry, preventing any further access to the corrupted directory path or file length > allocated clusters. In F/W version 2.2.11 Targa Systems implemented a change such if either of these conditions are detected on subsequent card access, they are automatically corrected by the Targa DTU To accommodate for this change in PC / CF card write latency performance, Targa has also added the FAT SYNC mode, which forces elements of the metadata cache to be continuously written, selectively in the proper sequence, in order to mitigate the possibility of DOS FAT filesystem corruption. The FAT SYNC mode, does impact write performance and may only be required in operational circumstances with unreliable input power and / or multiple simultaneous data file writes.

C.3 EXT3 File System In applications where DOS file system corruption cannot be prevented the solution is to use the linux ‘ext3’ journaling file system. (Support added in F/W vers xxx)


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D DR30-50A-2 Alternate Ethernet Connector Details

Unit ConnectorMating Connector

D38999/20FA35PND38999/26FA35SN

Main keyway: top dead center

Pin Out ( colours are for Targa production internal unit wiring purpose )

1 Tx+ (out) (Red)

2 Tx- (out) (Green)

3 Rx+ (in) (Blue)

4 n/c

5 n/c

6 Rx- (in) (yellow)

D38999/20FA35PNTarga P/N: 88300266

12

345

6


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