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Daisy-chaining for the ncm, Extend, Daisy-chaining for the ncm -19 – Verilink AS2000: The Basics (880-502981-001) Product Manual User Manual

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Hardware Installation

Verilink Access System 2000: The Basics

4-19

2. If the node has more than one shelf, assign addresses 2, 3, and

4 to the additional shelves. No other address assignments are
valid.

3. Power cycle the shelf.

NOTE: The Quint-line shelf address can not be set. The default

address is always 1.

Extending the

TABs Node

Controller Bus

The RS-485 controller bus cable extends communication from the
NCC or SCC node controller to shelves containing other TABS-based
modules in the node.

1. Connect one end of the cable into the Controller Bus Out jack

on the first shelf, into the Controller Bus In jack on the second
shelf. Refer to

Figure 4-17

.

Figure 4-17 Expanding the TABs Controller Bus

Daisy-Chaining

for the NCM

The NCM uses the RJ-45 controller bus cable (Verilink part number
458-502313-008) to extend communication to shelves containing
other ACP-based modules in the node.

The EXT management port of the NCM is used to extend the ACP
bus to multiple shelves. Backplane cable connections are used to
extend the TABS bus. The example shown in

Figure 4-18

consists of

four shelves.

J4

J3

J4

J3

Bus In

Bus In

Bus Out

Bus In

Bus Out

Bus Out

Bus In

Bus Out

Multi-line shelf

# 1 (address 1)

Multi-line shelf

# 2 (address 2)

Dual-line shelf #1

(address 3)

Dual-line shelf #2

(address 4)

RJ-11 node

controller

bus cable

(Shown between each

pair of shelves)

J17

J16

J17

J16

J4

J3

J4

J3