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Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 2 Common Control Cards
2.4.6 Data Communications Channel
2.4.6 Data Communications Channel
The DCC features a dedicated data channel of 576 kbps (D4 to D12 bytes) between two nodes in an
ONS 15454 network. Each AIC-I card provides two data communications channels, DCC-A and
DCC-B, through separate RJ-45 connectors on the front of the AIC-I card. Each DCC can be routed to
an individual optical interface in the ONS 15454. For instructions, see the Cisco ONS 15454 DWDM
Procedure Guide.
The DCC ports are synchronous serial interfaces. The DCC ports are standard RJ-45 receptacles.
Table 2-10 lists the DCC pin assignments.
2.5 MS-ISC-100T Card
Note For hardware specifications, see the “A.3.7 MS-ISC-100T Card Specifications” section on page A-12.
The Multishelf Internal Switch Card (MS-ISC-100T) is an Ethernet switch used to implement the
multishelf LAN. It connects the node controller shelf to the network and to subtending shelves. The
MS-ISC-100T must always be equipped on the node controller shelf; it cannot be provisioned on a
subtending controller shelf.
The recommended configuration is to implement LAN redundancy using two MS-ISC-100T cards: one
switch is connected to the Ethernet front panel port of the TCC2/TCC2P card in Slot 7, and the other
switch is connected to the Ethernet front panel port of the TCC2/TCC2P card in Slot 11. The Ethernet
configuration of the MS-ISC-100T card is part of the software package and is automatically loaded. The
MS-ISC-100T card operates in Slots 1 to 6 and 12 to 17 on the node controller shelf; the recommended
slots are Slot 6 and Slot 12.
4RXP
5TXP
6 For future use
Table 2-9 UDC Pin Assignments (continued)
RJ-11 Pin Number Description
Table 2-10 DCC Pin Assignments
RJ-45 Pin Number Description
1TCLKP
2TCLKN
3TXP
4TXN
5RCLKP
6RCLKN
7RXP
8RXN
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