Verilink NCM 2000 (880-502623-001) Product Manual - Manual (Page 21)

NCM Overview
Verilink NCM 2000 1-11
Connectors Used 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 1-6 consists of
four shelves.
Figure 1-6 Cable Diagram for Daisy-chaining Shelves
The NCM in shelf 1 connects to shelf 3 (in this case) through the
EXT connector on the NCM and the PRI connector on the ACP type
card in shelf 3.
Shelf 2 contains all TABS modules. It is extended from Shelf 1 using
the backplane RJ-11 connectors, as in a legacy AS2000 system.
Shelves 3 and 4 have DIDCSU application modules which use the
ACP bus.
Cables for
Connecting
Shelves
The cables used to daisy-chain shelves extend only NCM
management functions, not user data.
Table 1-4 lists the types of
cables used.
NOTE: If a shelf contains both TABS and ACP type modules, use only ACP
type cables to extend the NCM management to that shelf.
Table 1-4 Table 1-4 Table 1-4 Table 1-4 Management Extension Cables Management Extension Cables Management Extension Cables Management Extension Cables
NCM
PRI
EXT
IAD
PRI
EXT
IAD
PRI
EXT
All TABS shelf
RJ-11 backplane cable extends TABS bus
Shelf 1 ACP Shelf 3 ACP Shelf 4 ACP Shelf 2 TABS
Cable Description
Bus
Extended
Cable Part
Number
Cable
Length Connectors
Control bus expansion cable TABS 458-501762-002 20” RJ-11 - RJ-11
Control bus expansion cable TABS 458-501762-004 40” RJ-11 - RJ-11
Management bus extension
cable
ACP 458-502313-001 12” RJ-45 - RJ-45
Management bus extension
cable
ACP 458-502313-008 8’ RJ-45 - RJ-45