9-50
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 9 Node Reference
9.5.6 Amplified or Passive OADM Node Fiber-Optic Cabling
9.5.6 Amplified or Passive OADM Node Fiber-Optic Cabling
The two sides of the OADM node do not need to be symmetrical. On each side, Cisco TransportPlanner
can create one of the following four configurations:
• OPT-BST and OPT-PRE
• OSC-CSM and OPT-PRE
• Only OSC-CSM
• Only OPT-BST
Note Amplified OADM nodes contain OPT-PRE cards and/or OPT-BST cards. Passive OADM nodes do not.
Both contain add/drop channel or band cards.
The following rules generally apply for OADM node express path cabled connections:
• TX ports should only be connected to RX ports.
• EXP ports are connected only to COM ports in between AD-xC-xx.x or AD-xB-xx.x cards that all
belong to Side B (that is, they are daisy-chained).
• EXP ports are connected only to COM ports in between AD-xC-xx.x or AD-xB-xx.x cards that all
belong to Side A (that is, they are daisy-chained).
• The EXP port of the last AD-xC-xx.x or AD-xB-xx.x card on Side A is connected to the EXP port
of the first AD-xC-xx.x or AD-xB-xx.x card on Side B.
• The OPT-BST COM RX port is connected to the nearest (in slot position) AD-xC-xx.x or
AD-xB-xx.x COM TX port.
• The OPT-PRE COM TX port is connected to the nearest (in slot position) AD-xC-xx.x or
AD-xB-xx.x COM RX port.
• If OADM cards are located in adjacent slots, the TCC2/TCC2P card assumes that they are connected
in a daisy-chain between the EXP ports and COM ports as noted previously.
• The first Side A AD-xC-xx.x or AD-xB-xx.x card COM RX port is connected to the Side A
OPT-PRE or OSC-CSM COM TX port.
• The first Side A AD-xC-xx.x or AD-xB-xx.x card COM TX port is connected to the Side A
OPT-BST or OSC-CSM COM RX port.
• The first Side B AD-xC-xx.x or AD-xB-xx.x card COM RX port is connected to the Side B
OPT-PRE or OSC-CSM COM TX port.
1 Side A OSC-CSM LINE RX to Side B
OSC-CSM or OPT-BST LINE TX on adjacent
node
4 Side A OSC-CSM COM RX to Side B OSC-CSM
COM TX
2 Side A OSC-CSM LINE TX to Side B
OSC-CSM or OPT-BST LINE RX on adjacent
node
5 Side B OSC-CSM LINE RX to Side A OSC-CSM or
OPT-BST LINE TX on adjacent node
3 Side A OSC-CSM COM TX to Side B
OSC-CSM COM RX
6 Side B OSC-CSM LINE TX to Side A OSC-CSM or
OPT-BST LINE RX on adjacent node
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