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DER 0450 ZXMW SR10 S340 Technical Specification V2.00 01
Transcript of DER 0450 ZXMW SR10 S340 Technical Specification V2.00 01
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ZXMW SR10 S340
Technical Specification
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ZXMW SR10 S340 Technical Specification
ZTE Confidential Proprietary © 2008 ZTE Corporation. All rights reserved. I
ZXMW SR10 S340 Technical Specification
Version Date Author Approved By Remarks
V1.00 Shiyuqi Zhangwei
© 2008 ZTE Corporation. All rights reserved.
ZTE CONFIDENTIAL: This document contains proprietary information of ZTE and is not to be
disclosed or used without the prior written permission of ZTE.Due to update and improvement of ZTE products and technologies, information of the document issubjected to change without notice.
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ZXMW SR10 S340 SDH Microwave Specification
II © 2008 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary
TABLE OF CONTENTS
1
Overview ......................................................................................................................1 1.1 Key Features................................................................................................................1
1.2 Advanced Technology..................................................................................................2
1.2.1 FEC-Seed Solomon Technology..................................................................................2
1.2.2 Adaptive Coding and Modulation Technology .............................................................3
1.2.3 Hybrid & Native transmission solution .........................................................................3
2
Product Descr iption ...................................................................................................3
2.1 Physical Description.....................................................................................................3
2.1.1 Protected Configuration ...............................................................................................3
2.1.2 Unprotected Configuration ...........................................................................................3
2.1.3 Alarm Display ...............................................................................................................4
2.2 ODU .............................................................................................................................4
2.3
IDU ...............................................................................................................................5 2.3.1 ZXMW SR10 S340 IDU................................................................................................5
3
Network Management System...................................................................................6
3.1 WEB Management .......................................................................................................6
3.1.1 Faults Management .....................................................................................................6
3.1.2 PM & Counters Management.......................................................................................7
3.1.3 Configuration Management..........................................................................................7
3.1.4 Diagnostics...................................................................................................................7
3.1.5 Security Management ..................................................................................................8
4
Performance Parameters ...........................................................................................9
4.1 Frequency Plan and Channel Spacing ........................................................................9
4.2
Nominal Transmitted Power.........................................................................................9 4.3 Threshold Power ........................................................................................................10
4.4 System Gain...............................................................................................................11
4.5 System Characteristics ..............................................................................................12
4.6 Ethernet traffic throughput..........................................................................................13
4.7 Power Consumption...................................................................................................15
4.8 IF Cable Characteristics.............................................................................................15
5
LIST OF ABBREVIATIONS .......................................................................................16
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FIGURES
Figure 1 1+0 Unprotected ODU....................................................................................................4
Figure 2 1+1 Protected ODU........................................................................................................4
Figure 3 Ethernet only IDU...........................................................................................................5
Figure 4 Ethernet + 16E1 IDU......................................................................................................5
Figure 5 Menu Navigation Bar......................................................................................................6
TABLES
Table 1 Key Features..................................................................................................................1
Table 2 Frequency Plan and Channel Spacing...........................................................................9
Table 3 Frequency Plan and Channel Spacing(Continued)........................................................9
Table 4 Transmitted Power .......................................................................................................10
Table 5 Threshold Power ..........................................................................................................10
Table 6 System Gain.................................................................................................................11
Table 7 System Characteristics.................................................................................................12
Table 8 System Characteristics(Continued)..............................................................................13
Table 9
Ethernet Throughput ....................................................................................................13
Table 10 Power Consumption.....................................................................................................15
Table 11 IF Cable Characteristics...............................................................................................15
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ZXMW SR10 S340 Technical Specification
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1 Overview
ZXMW SR10 is SDH family of digital microwave systems by ZTE Corporation. It leads the marketin technology innovation, network flexibility, and IP evolution.
ZXMW SR10 S340 is a comprehensive high capacity IP and Migration-to-IP network solution. Itwas designed as a native Ethernet microwave radio platform that can integrate smoothly in anynetwork, while providing a broad range of software-configurable licensed channel schemes Itsupports both data and voice transmission, typically in mobile RAN, backhaul, enterprise,government, and public safety networks.. It is optimized for combined SDH-IP operation in nextgeneration wireless networks.
ZXMW SR10 S340 supports frequency bands from 6 to 38 GHz and supports 16xE1 telephonywith 5xFE and 2xGbE data interfaces. Advanced Adaptive Code Modulation (ACM) from QPSK to
256QAM provides bandwidth range from 7 to 56MHz for 10 to 500Mbps throughputs. ZXMWSR10 S340 is developed for low-to-high capacity SDH access and transport.
1.1 Key Features
This section introduces the key features of ZXMW SR10 S340 microwave systems. The mainfrequency bands, capacity, modulation and configuration are listed in Table 1 .
Table 1 Key Features
Frequency Band L6, U6, 7, 8, 10, 11, 13, 15, 18, 22, 26, 28, 32,38GHz
Capacity Mixed capacity 10Mbps to 500Mbps
ModulationQPSK, 8PSK, 16QAM, 32QAM, 64QAM, 128QAM,
256QAM
Configuration1+0
1+1 HSB(2*IDU)
The detail description is as follows.
Capacity independent ODU
Fully programmable modem
In-service performance monitoring with parameters compliant to ITU-T G.826
recommendations
Built-in SNMP agent
Programmable relay contacts for alarm indication or site control
Web based management for radio maintenance
Loopback: IF loopback, RF loopback, Line loopback
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ATPC operation
Traffic Interfaces:
5 x 10/100Base-T
1 x 10/100/1000Base-T
SFP 1000Base-X
16 x E1 (optional)
ODU, N-type connector
Available configurations:
Ethernet only (2xGbE + 5xFE)
Ethernet + 16E1
Ethernet port supports:
10M/100M/1000M Full duplex/Half duplex auto-negotiation
Flow control
IP frame direct mapping to radio frame, low latency and high throughput
Support VLAN 802.1p, TOS/TC-IP precedence and VLAN ID
Integrated QoS
802.3ad link aggregation
STP/RSTP/MSTP for protection and loop-prevention with load balancing
Full RMON/ROM2 statistics per interface
1.2 Advanced TechnologyThe following advanced technologies are used in ZXMW SR10 S340 Digital microwave systemdesign.
1.2.1 FEC-Seed Solomon Technology
ZXMW SR10 S340 System adopts twice accessional FEC coding technology. To build (252, 236)RS coding which is first FEC coding, 16 byte RS code was tacked after 236 byte. This is known asRS coding External code. The second accessional FEC coding adopts Convolution Coder. This isknown as Convolution Coder Internal code. Based on this design, ZXMW SR10 S340 Systemgets more system gain with less coding length.
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1.2.2 Adaptive Coding and Modulation Technology
Adaptive Coding and Modulation refers to the automatic adjustment that a wireless system canmake in order to optimize over-the-air transmission and prevent weather-related fading from
causing communication on the link to be disrupted. When extreme weather conditions, such as astorm, affect the transmission and receipt of data and voice over the wireless network, an ACM-enabled radio system automatically changes modulation allowing real-time applications tocontinue to run uninterrupted. Varying the modulation also varies the amount of bits that aretransferred per signal, thereby enabling higher throughputs and better spectral efficiencies. Forexample, a 256 QAM modulation can deliver approximately four times the throughput of 4 QAM(QPSK).
1.2.3 Hybrid & Native transmission solution
Native TDM + Native IP, High throughput, Low latency, Hitless dynamic allocation between TDMand Ethernet service
With Native solution, get optimal all-IP or hybrid TDM-IP backhaul networking - ideal for any RANevolution path.
2 Product Description
2.1 Physical Description
The ZXMW SR10 S340 radio system consists of IDU (Indoor Unit) and ODU (Outdoor Unit). TheIDU can be mounted in the standard 19” (483 mm) rack occupying 1U space for unprotectedconfiguration and one more IDU for 1+1 HSB protection. The ODU is weatherproof and can bemounted in separate or direct mode with antenna.
The radio is fully programmable in terms of capacity, modulation level, RF frequency channel, andtransmit output power level.
2.1.1 Protected Configuration
ZXMW SR10 S340 supports HSB protection modes.
HSB consists of two IDUs and two ODUs mounted on hybrid.
2.1.2 Unprotected Configuration
A ZXMW SR10 S340 terminal in an unprotected configuration consists of one IDU and one ODUconnected to the IDU through a coaxial cable.
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2.1.3 Alarm Display
In-service performance monitoring and built-in diagnostics are provided to monitor signal quality,path identification and hardware failures. LED’s and relay contacts provide alarm status. The
ZXMW SR10 S340 supports element management system with SNMP protocol.
2.2 ODU
Suitable configuration can be selected from various ODU mounting styles.
· Direct mounting on antenna
· Separate mounting with antenna using flexible waveguide
·
1+1 mode with Hybrid
The unprotected and protected modes (take direct mount for example) are shown from Figure 1and Figure 2.
Figure 1 1+0 Unprotected ODU
Figure 2 1+1 Protected ODU
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2.3 IDU
2.3.1 ZXMW SR10 S340 IDU
The IDU configuration is shown in Figure3 and Figure4.
Figure 3 Ethernet only IDU
Figure 4 Ethernet + 16E1 IDU
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3 Network Management System
3.1 WEB Management
ZXMW SR10 S340 has Web Management interface for Local/Remote end maintenance,configuration, and troubleshooting.
The LMT (Local Management Terminal) is a Web-Based Management System. All systemfeatures are provided by Embedded RTOS. C/C++ is employed as programming languages.
Web Management operates on Microsoft Internet Explorer (IE), and connect to front panel of IDUby a network cable, no additional client software required.
The menu navigation bar is shown in Figure5.
Figure 5 Menu Navigation Bar
The options listed in sub menu are describes as follows.
3.1.1 Faults Management
All alarms are displayed in fault management page. Alarms data can be monitored and retrievedeasily.
Current Alarms
Event Log
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3.1.2 PM & Counters Management
The PM (Performance Monitoring) & Counters menu includes the RMON (Remote Monitoring),Radio, and Tributary (E1) items.
RMON (Remote Monitoring)
Radio
Tributaries (E1)
3.1.3 Configuration Management
LMT provides local/remote configuration. User can configure following configuration parameters.
System Time
IP address
Licensing
Ethernet Switch
QoS & Rate Limiting
Frequency
ATPC (Automatic transmit power control)
Port management
Protection mode
User can configure frequency, and the adjustable step is 250 kHz.
3.1.4 Diagnostics
Web Management provides following maintenance tools
Radio Loopback
Line Loopback
Configuration Management
Software Management
Resets Management
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3.1.5 Securi ty Management
Web Management provides Security configuration, Users & Groups Management.
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4 Performance Parameters
The performance parameters of ZXMW SR10 S340 are described in this chapter.
4.1 Frequency Plan and Channel Spacing
The frequency plan and Channel separation is listed in Table 2 and Table 3 .
Table 2 Frequency Plan and Channel Spacing
Item 6L,6H GHz 7,8 GHz 11 GHz 13 GHz 15GHz 18GHz
FrequencyRange [GHz]
5.85-6.45,6.4-7.1
7.1-7.9,7.7-8.5
10.7-11.7 12.75-13.3 14.4-15.35 17.7-19.7
Standards ETSI, FCC ETSI ETSI, FCC ETSI ETSI ETSI, FCC
RF ChannelSpacing [MHz]
10, 28, 29,29.65, 30,
40, 56
7, 10, 14,28, 29,
29.65, 30,40, 56
28, 29,29.65, 30,
40
7, 14, 28,56
7, 14, 28,56
7,14, 20,27.5, 40,
55,80
RF TX/RXSpacing [MHz]
252.04, 240,266, 300,
340,160,170,500
154, 161,168, 182,196, 245,300, 119,311.32
490, 520,530
266315, 420,644, 490,
728
1010,1120,
1008, 1560
Table 3 Frequency Plan and Channel Spacing(Continued)
Item 23 GHz 24-26 GHz 28 GHz 32 GHz 38 GHz
FrequencyRange [GHz]
21.2-23.65 24.2-26.5 27.35-31.3 31.8-33.4 37-40
Standards ETSI, FCC ETSI, FCC ETSI, FCC ETSI, FCC ETSI, FCC
RF ChannelSpacing [MHz]
7, 14, 20, 28,50, 56, 60
7, 14, 28, 40,56
7, 14, 20, 28,50, 56, 60
7, 14, 28, 567, 14, 20, 28,
50, 56, 60
RF TX/RXSpacing [MHz]
1008, 1200,1232,
800, 900,1008
350, 500,1008
812 1000, 1260,700
4.2 Nominal Transmitted Power
The nominal transmitted power with different modulation schemes is listed in Table 4 .
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Table 4 Transmitted Power
Frequency (GHz) 6 7- 8 11-15 18-28 32-38 Guaranteed
QPSK 27.0 26.0 24.0 22.0 19.0
8PSK 27.0 26.0 24.0 22.0 19.0
16QAM 26.0 25.0 23.0 21.0 18.0
32QAM 25.0 24.0 22.0 20.0 17.0
64QAM 25.0 24.0 22.0 20.0 17.0
128QAM 25.0 24.0 22.0 20.0 17.0
OutputPower(dBm)
256QAM 23.0 22.0 20.0 18.0 15.0
±2.0 dB
4.3 Threshold Power
The threshold power in dBm measured at antenna port is listed in Table 5 .
Table 5 Threshold Power
Frequency (GHz)Modulation Bandwidth
6-8 11-15 18-28 32-38Guaranteed
QPSK -92.0 -91.5 -91.0 -90.5
8PSK -89.5 -89.0 -88.5 -88.0
16QAM -86.5 -86.0 -85.5 -85.0
32QAM -84.5 -84.0 -83.5 -83.0
64QAM -82.0 -81.5 -81.0 -80.5
128QAM -79.5 -79.0 -78.5 -78.0
256QAM -76.5 -76.0 -75.5 -75.0
256QAM
7 MHz
-74.5 -74.0 -73.5 -73.0
QPSK -89.0 -88.5 -88.0 -87.5
8PSK -87.0 -86.5 -86.0 -85.5
16QAM -83.5 -83.0 -82.5 -82.0
32QAM -81.5 -81.0 -80.5 -80.0
64QAM -79.5 -79.0 -78.5 -78.0
128QAM -76.5 -76.0 -75.5 -75.0256QAM -73.5 -73.0 -72.5 -72.0
256QAM
14 MHz
-71.5 -71.0 -70.5 -70.0
QPSK -86.5 -86.0 -85.5 -85.0
8PSK -85.0 -84.5 -84.0 -83.5
16QAM -82.0 -81.5 -81.0 -80.5
32QAM -78.5 -78.0 -77.5 -77.0
64QAM -75.5 -75.0 -74.5 -74.0
128QAM -72.5 -72.0 -71.5 -71.0
256QAM -70.5 -70.0 -69.5 -69.0
BER =10
-6
256QAM
28 MHz
-68.5 -68.0 -67.5 -67.0
+2.0 dB
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Frequency (GHz)
Modulation Bandwidth 6-8 11-15 18-28 32-38 Guaranteed
QPSK -86.0 -85.5 -85.0 -84.5
8PSK -83.5 -83.0 -82.5 -82.0
16QAM -80.5 -80.0 -79.5 -79.0
32QAM -78.5 -78.0 -77.5 -77.0
64QAM -75.0 -74.5 -74.0 -73.5
128QAM -72.5 -72.0 -71.5 -71.0
256QAM -69.5 -69.0 -68.5 -68.0
256QAM
40 MHz
-67.5 -67.0 -66.5 -66.0
QPSK -84.0 -83.5 -83.0 -82.58PSK -82.0 -81.5 -81.0 -80.5
16QAM -79.5 -79.0 -78.5 -78.0
32QAM -76.0 -75.5 -75.0 -74.5
64QAM -73.0 -72.5 -72.0 -71.5
128QAM -70.0 -69.5 -69.0 -68.5
256QAM -67.5 -67.0 -66.5 -66.0
BER =10
-6
256QAM
56 MHz
-65.5 -65.0 -64.5 -64.0
+2.0 dB
4.4 System GainThe system gain in dBm measured at antenna port is listed in Table 6 .
Table 6 System Gain
Frequency (GHz)Modulation Bandwidth
6 7- 8 11-15 18-28 32-38Guaranteed
QPSK 119.0 118.0 115.5 113.0 109.5
8PSK 116.5 115.5 113.0 110.5 107.0
16QAM 112.5 111.5 109.0 106.5 103.0
32QAM 109.5 108.5 106.0 103.5 100.0
64QAM 107.0 106.0 103.5 101.0 97.5
128QAM 104.5 103.5 101.0 98.5 95.0
256QAM 99.5 98.5 96.0 93.5 90.0
256QAM
7 MHz
97.5 96.5 94.0 91.5 88.0
QPSK 116.0 115.0 112.5 110.0 106.5
8PSK 114.0 113.0 110.5 108.0 104.5
16QAM 109.5 108.5 106.0 103.5 100.0
32QAM 106.5 105.5 103.0 100.5 97.0
64QAM
14 MHz
104.5 103.5 101.0 98.5 95.0
-3.0 dB
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128QAM 101.5 100.5 98.0 95.5 92.0
256QAM 96.5 95.5 93.0 90.5 87.0
256QAM 94.5 93.5 91.0 88.5 85.0
Frequency (GHz)Modulation Bandwidth
6 7- 8 11-15 18-28 32-38Guaranteed
QPSK 113.5 112.5 110.0 107.5 104.0
8PSK 112.0 111.0 108.5 106.0 102.5
16QAM 108.0 107.0 104.5 102.0 98.5
32QAM 103.5 102.5 100.0 97.5 94.0
64QAM 100.5 99.5 97.0 94.5 91.0
128QAM 97.5 96.5 94.0 91.5 88.0
256QAM 93.5 92.5 90.0 87.5 84.0
256QAM
28 MHz
91.5 90.5 88.0 85.5 82.0
QPSK 113.0 112.0 109.5 107.0 103.5
8PSK 110.5 109.5 107.0 104.5 101.0
16QAM 106.5 105.5 103.0 100.5 97.0
32QAM 103.5 102.5 100.0 97.5 94.0
64QAM 100.0 99.0 96.5 94.0 90.5
128QAM 97.5 96.5 94.0 91.5 88.0
256QAM 92.5 91.5 89.0 86.5 83.0
256QAM
40 MHz
90.5 89.5 87.0 84.5 81.0
QPSK 111.0 110.0 107.5 105.0 101.5
8PSK 109.0 108.0 105.5 103.0 99.5
16QAM 105.5 104.5 102.0 99.5 96.0
32QAM 101.0 100.0 97.5 95.0 91.5
64QAM 98.0 97.0 94.5 92.0 88.5
128QAM 95.0 94.0 91.5 89.0 85.5
256QAM 90.5 89.5 87.0 84.5 81.0
256QAM
56 MHz
88.5 87.5 85.0 82.5 79.0
-3.0 dB
4.5 System Characteristics
Table 7 System Characteristics
Frequency(GHz) 6L, 6H, 7, 8, 11, 13, 15, 18, 23, 24-26, 28, 32, 38
ATPC range 20dB, in 1 dB step
Frequency Stability ±10 ppm
Configuration 1+0, 1+1 HSB(2*IDU)
Maximum Input Level -20 dBm (No Error)
Metering Access RX Signal Level
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Modulation Type QPSK, 8PSK, 16/ 32/ 64/ 128/ 256 QAM
Interface Modules
E1s,Fast Ethernet: 10/100BaseT Fast Ethernet, Auto-negotiation,Full/Half duplex
GbE: SFP: Electrical 1000BaseT, Optical 1000Base-LX (1310 nm) orSX (850 nm)
Service ChannelsUser Channel (RJ45) × 1 channel
Engineering Order Wire × 1 channel
Table 8 System Characteristics(Continued)
Item Specification
External Alarms Connector type : 9 pins, D-SUB,4 input and 1 output
Loop Back Radio Loopack: IF Loopback, RF LoopbackLine Loopback
Residual BER Less than 10-12
at RSL = -30 dBm
ODU Monitor ItemsMetering access
Received signal level (AGC V)Output power level (TX PWR)
EMC Conforms to ETS 301 489-4
Mean Time BetweenFailures (MTBF)
200,000 Hours
Guaranteed TemperatureRange
IDU: -5 to 45°C;
ODU: -35 to +55°C
Dimensions (mm)and Weight
ODU: 200 (W) x 200 (H) x 85 (D); 4.0 KgIDU : 439 (W) x 43 (H) x 188 (D); 2.5 Kg
4.6 Ethernet traffic throughput
The maximum throughput in Mbps measured when bandwidth is dedicated for ETH traffic use islisted in Table 9 .
Table 9 Ethernet Throughput
Ethernet ThroughputModulation Bandwidth RequiredCapacity License
Number ofSupported E1s
Min Max
QPSK 10 4 9.5 13.5
8PSK 25 6 14 20
16QAM 25 8 20 28
32QAM 25 10 23 34
64QAM 25 12 28 40
128QAM 50 13 33 47
256QAM 50 16 38 55
256QAM
7 MHz
50 16 43 60
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QPSK 25 8 20 29
8PSK 25 12 28 40
16QAM 50 16 38 54
32QAM 50 16 50 71
64QAM 50 16 57 82
128QAM 100 16 69 99
256QAM 100 16 81 115
256QAM
14 MHz
100 16 90 128
Modulation BandwidthRequired
Capacity LicenseNumber of
Supported E1sEthernet Throughput
QPSK 50 16 38 54
8PSK 50 16 53 76
16QAM 100 16 75 108
32QAM 100 16 103 148
64QAM 150 16 127 182
128QAM 150 16 156 223
256QAM 150 16 167 239
256QAM
28 MHz
200 16 185 264
QPSK 10 16 51 73
8PSK 25 16 71 102
16QAM 25 16 101 144
32QAM 25 16 128 182
64QAM 25 16 158 225
128QAM 50 16 183 261
256QAM 50 16 214 306
256QAM
40 MHz
50 16 237 339
QPSK 10 16 75 108
8PSK 25 16 113 162
16QAM 25 16 152 217
32QAM 25 16 204 29264QAM 25 16 253 362
128QAM 50 16 304 435
256QAM 50 16 345 493
256QAM
56 MHz
50 16 381 545
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4.7 Power Consumption
Table 10 Power Consumption
Power Consumption ( at -48 VDC Input)
Power Supply -40 to -58 VDC
Configuration 1 + 0 1 + 1
IDU 25W (Rate Free) 45W (Rate free)
ODU22W (6-26GHz)
26W (28-38GHz)
39W (6-26GHz)
43W (28-38GHz)
System47W (6-26GHz)
51W (28-38GHz)
84W (6-26GHz)
88W (28-38GHz)
4.8 IF Cable Characteristics
Table 11 IF Cable Characteristics
Item Specification
Interconnection Single coaxial cable (per channel)
Standard Type of Cable 8D-FB, RG-8 and equivalent
Signals IF signal, alarms, control, monitoring, power source
Cable Equalization Automatic level equalization
Guaranteed temperature range -33°C to +50°C (workable : -40°C to +55°C)
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5 LIST OF ABBREVIATIONSTypeface Meaning
AGC Automatic Gain Control
A/D Analog-to-Digital
AIS Alarm indication signal
ALM Alarm
AMP Amplifier
ANT Antenna
ATPC Automatic Transmitter Power Control
BBE Background Block Error
BER Bit Error RateBNC Bayonet Navy Connector
BR Branching
CIT Craft Interface Terminal
CMA Constant Modulus Algorithm
CONV Converter
D/A Digital-to-Analog
DEM Demodulator
DEMUX Demultiplexer
DHCP Dynamic Host Configuration Protocol
DPLL Digital Phased Locked Loop
DSC Digital Service Channel
EDI External Device Interface
EMC Electro Magnetic Compatibility
EMS Element Management System
EOW Engineering Order Wire
ES Erred Seconds
ETH Ethernet
ETSI European Telecommunications Standards Institute
FIR Finite Impulse Response
FREQ Frequency
FTP File Transfer Protocol
HDB3 High Density Bipolar of order 3
HDLC High level Data Link Control
HSB Hot Standby
HTTP Hyper Text Transfer Protocol
IEC International Electro technical Commission
I/O Input/Output
IDU Indoor Unit
IF Intermediate Frequency
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Typeface Meaning
ITU International Telecommunication Union
ITU-R Radio standardization sector of ITU
ITU-T Telecommunication standardization sector of ITU
LAN Local Area Network
LED Light Emitting Diode
LNA Low Noise Amplifier
LOF Loss of Frame
LOS Loss of Signal
MAINT Maintenance
MIB Management Information Base
MIC Microwave Integrated Circuit
MDI/MDI-X Media Dependent Interface
MOD Modulator
MTBF Mean time Between Failure
MUX Multiplexing
NE Network Element
NMS Network Management System
NRZ Non-Return to Zero coding
ODU Outdoor Unit
OSPF Open Shortest Path First
PC Personal Computer
PDH Plesiochronous Digital Hierarchyppm parts per million
PS Power Supply
PWR Power
QAM Quadrature Amplitude Modulation
QPSK Quadrature Phase Shift Keying
RF Radio Frequency
RX Receiver
SD Space Diversity
SES Severely Erred Second
SNMP Simple Network Management Protocol
TX Transmitter