Nortel Networks DCT1900 manual Connections to the SDB, Sdb

Technical Product Manual - DCT1900

Installation Instructions, Modular Cabinet – CPU Cabling

CPU

TSRNB 101 48	X4
Sync in	X3

	X2	to backplane
Sync out 1	X1
Sync out 2
Sync out 3
		SDB
		X8
	X7	X6	X5

Sync in (from master)

External sync cables

Sync out 3 (to slave) Sync out 2 (to slave)

Sync out 1 (to slave)

Fig. 20-2 Connections to SDB

Connections to the SDB

For the connections to the SDB also refer to Chapter 18:

1.Ensure that the SDB is installed on the bottom plate of the cabinet and that the CPU strap set- tings are in the proper position. The required material is part of the installation set, sync port kit (NTMNB 101 107).

2.Connect the CPU/SDB Twisted Pair Sync cables (TSRNB 101 48) as indicated in Figure 20–2 (see also Figure 20–1).

3.Connect the external sync in cable to a sync out outlet of another DCT1900 when this CPU is not the synchronization master.

4.Connect the external sync out cables to the sync in inlets of the DCT1900 systems that are synchronization slaves to this CPU.

5.Fasten the external sync cables to the cable tie blocks on the ground strip (see Figure 20–3) using tie wraps.

Install-DCT1900/R8/mw	20-3
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