' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 1
Gainmaker 4-portSegmentable Node
Given by Uwe HasenfussSA Network Consulting Engineer
December 2009
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 2
Topics
Overview
Mechanical Install
Components
Powering
Balancing
Troubleshooting
Note: All following information can also be found in the Installation and Operation guide
Gainmaker 4-port segmentable Node
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 3
Overview
1 GHz Forward Path
High Output Gain Stages
4 splits (40/52, 42/54, 65/86, 55/70)
No Forward Segmentation
No Forward Redundancy
No AGC not applicable for nodes
Single Power Supply (No Dual AC Input Capability)
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 4
Reverse Transmitters FP, DFB, CWDM, DWDM available
Reverse Segmentation (left / right only)
Reverse Redundancy (if not segmented)
Input Pad and RF test point for each Reverse Input
Fiber Management tray
Optional Plug-In Status Monitor
Overview
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 5
Overview
Receiver wavelength 1310 / 1550 nm
Optical Input Range - 3 to +2 dBm (0.5 to 1.6 mW)
Pass Band 52 1002 MHz
Optical Input Testpoint 1V / mW
Operational gain 41 dB
Testpoints - 20 dB
Rev TX Optical Output 1310/CWDM 3 dBM / DWDM 7 dBm
Power Consumption 93 W
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 6
Housing -Dimensions
Weight: 10.2 kgWith 1 TX, 1RX, PS
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 7
Housing -Open and Closing
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 8
Housing -Open and Closing
Torque 6.8 Nm to 16.3 Nm
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 9
Housing -Connection ports
Fiber In/Out
Coax ports in the base
Optical port in the lid
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 10
Mounting
Due to the weight of the equipment and safety reasons, it is recommended to have two people available for mounting.! !
Strand - mounting
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 11
Mounting
Strand - mounting
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 12
Pedestal - mounting
Mounting
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 13
Mounting
Pedestal - mounting
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 14
Connecting CablesFiber Optic Cable
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 15
Connecting CablesFiber Optic Cable
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 16
Connecting CablesFiber Optic Cable
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 17
Connecting CablesFiber Optic Cable
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 18
Connecting CablesFiber Optic Cable
WARNING!
ALWAYS CHECK THE OPTICAL LEVEL BEFORE CONNECTING ANY
OPTICAL CABLES
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 19
Connecting CablesFiber Optic Cable
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 20
Connecting CablesFiber Optic Cable
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 21
Connecting CablesCoaxial Cable
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 22
Connecting CablesCoaxial Cable
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 23
Powering
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 24
Powering
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 25
Unit modules
Optical Receiver
Optical Reverse
Transmitter
Power Supply
4-port Amplifier
Return path configuration
plugin
Fiber Management Tray
Above Optical Modules
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 26
Optical componentsReverse - Transmitter
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 27
Optical componentsForward - Receiver
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 28
Installing / Replacing optical components
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 29
Installing / Replacing optical componentsExample: Transmitter The Receivers are treated equally
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 30
Installing / Replacing optical components
Example: Transmitter The Receivers are treated equally
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 31
RF Setup Components
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 32
Setup and BalancingBlock Diagramm
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 33
Setup and BalancingSignalflow Forward Path
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 34
Setup and BalancingSignalflow Reverse Path
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 35
Setup and BalancingReverse Path Configurations
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 36
Setup and BalancingEquipment
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 37
Setup and BalancingForward Path Balancing
WARNING!
ALWAYS CHECK THE OPTICAL LEVEL BEFORE CONNECTING ANY
OPTICAL CABLES
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 38
Setup and BalancingForward Path Balancing
To complete the balancing procedure the following steps are necessary
Check the optical Input level
Set the RF Output Level of the optical Receiver
Determine the Output Tilt
Set the Output Tilt
Set the Output Level
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 39
Setup and Balancing Forward Path
Check the optical Input Level
Check the optical Input level of the Receiver, using an optical Powermeter or Voltmeter
Ensure the optical Input level is within specificationof the Receiver (-3...+2 dBm)
Check the optical Input level versus the design If the level is out of tolerance, troubleshoot beforeproceeding with the setup
Note: The Amplifier cannot be balanced without the proper input signal
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 40
Setup and Balancing Forward Path
Note: Minimum Receiver RF output with optical input of 0 dBm
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 41
Setup and Balancing Forward Path
Verify the RF Input Level of the Amplifier
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 42
Setup and Balancing Forward PathDetermine the Output Tilt
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 43
Setup and Balancing Forward PathSet the Output Tilt
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 44
Setup and Balancing Forward Path
Set the Output Level
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 45
Setup and Balancing Reverse Path
Methods of Reverse Path Balancing
There are various possibilities how to setup the Measurement Equipment for balancing the Reverse Path.
The main issue is that the measurement has to be performed at a different location than the configuration.
e.g. Balancing the optical link between the Node and the Hub or HeadendThe configuration is done at the node but the measurement has to be done at the Headend.
These are two possible examples how to do it.
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 46
Setup and Balancing Reverse Path
Methods of Reverse Path Balancing
Adjustment w ith Spectrum Analyzer & Video Camera
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 47
Setup and Balancing Reverse Path
Methods of Reverse Path Balancing
Adjustment w ith Stealth Sweeper
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 48
Setup and Balancing Reverse Path
To complete the balancing procedure the following steps are necessary
Verify optical Input Level of Receiver versus Design
Check the design for the calculated Pad values (Att, Tilt)
Inject Signal into Reverse Injection point
Check RF Output of Receiver in Headend
Adjust Receiver Output level
Balance Reverse Path on Amplifiers
Reverse Path Balancing
Note: Always balance the fiber link first, before balancing any Amplifiers in the plant
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 49
Setup and Balancing Reverse Path
Verify optical Input Level of Receiver versus Design
!! Check Optical Input Level of Receiver versus Receiver Datasheet !!
Verify using an optical Powermeter the optical input level of the Optical Receiver in the Headend and compared with designed value.
Note: It is good practice to set up the link with the highest optical loss budget first
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 50
Setup and Balancing Reverse Path
Check the design for the calculated Pad values (Att, Tilt)
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 51
Setup and Balancing Reverse Path
Inject Signal into Reverse Injection point
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 52
Setup and Balancing Reverse Path
Inject Signal into Reverse Injection point
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 53
Setup and Balancing Reverse Path
Inject Signal into Reverse Injection point
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 54
Setup and Balancing Reverse Path
Check RF Output of Receiver in Headend
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 55
Setup and Balancing Reverse Path
Adjust the RF Output of Receiver in Headend
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 56
Setup and Balancing Reverse Path
Balance Reverse Path on Amplifiers
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 57
Setup and Balancing Reverse Path
Balance Reverse Path on Amplifiers
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 58
Troubleshooting
Equipment
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 59
TroubleshootingAC Power
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 60
Troubleshooting
AC Power
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 61
TroubleshootingDC Power
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 62
Troubleshooting
DC Power
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 63
Troubleshooting
Low RF Output
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 64
Troubleshooting
Low RF Output
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 65
Troubleshooting
No Forward RF Signal
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 66
Troubleshooting
No Forward RF Signal
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 67
Troubleshooting
Low or Degraded Forward RF Signal
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 68
Troubleshooting
Low or Degraded Forward RF Signal
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 69
Troubleshooting
Carrier to Noise Problems
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 70
Troubleshooting
Carrier to Noise Problems
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 71
Troubleshooting
Miscellaneous Problems
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 72
Troubleshooting
Miscellaneous Problems
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 73
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 74
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 75
LCM
' 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 76
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