Verilink NCC 2130 (880-503285-001) Product Manual - Manual (Page 10)

Overview
1-2 Verilink NCC 2130 User Manual
Types Of NCC
Node Controllers
Verilink’s NCC family of Node Controllers includes the following
modules:
• The NCC 2130 (documented in this manual) is a TAC 2130
IDCSU (Integrated T1 CSU/DSU) with the addition of a node
controller function. The NCC 2130, like the TAC 2130 it
contains, is a self-contained module for data purposes. The
NCC 2130 does not use any midplane data bus to exchange
timeslots with any of the Verilink DSU modules (DIU 2130, DIU
2131, DIU 2140). None of the 24 DS0 timeslots on a T1
connected to an NCC 2130 can be routed across the shelf
midplane to another module.
• The NCC 2020 is a TAC 2010 T1 CSU with the addition of a
node controller function. See the
NCC 2020 User Manual for
full details. Unlike the NCC 2130, the CSU portion of an NCC
2020 can be configured to pass T1 timeslot data to a DIU
module.
Compatible
Modules
Types of application modules which can be managed by the NCC
2130 are listed in
Table 1-1 :
Table 1-1 NCC Compatible Modules
Module Type Usage
TAC 2010 CSU T1 CSU which can be used as a CSU only (CSU mode), part of a CSU/DSU
(Mux mode) or in a combination of both (Drop & Insert Mode). Can be
used with up to 24 DIU 21xx DSU modules to make a data channel bank.
DIU 2130 DSU DSU with two synchronous serial interface ports for connection of Data
Terminal Equipment (DTE). Can be used with TAC 2010 (including the TAC
2010 portion of an NCC 2020). Uses a shelf midplane to receive/transmit
data to a CSU module.
DIU 2130/DBU DSU DSU with a single synchronous serial interface port and modified firmware
which uses the second port to switch the DTE data from port 1 to an
external Dial Back-Up device—which must be configured to dial on DTR.
Uses a shelf midplane to receive/transmit data to a CSU module.
DIU 2130
56K/NMS
DSU DSU with two synchronous serial interface ports and support for routing
of individual timeslots (in the “telco cloud”) to remote sites with 56K DDS
circuits. Uses a shelf midplane to receive/transmit data to a CSU module.
DIU 2140 Sub-Rate
Data
Multiplexer,
5 port DSU
DSU with five RS-232 interface ports, each individually selectable for sync
or async data, which are multiplexed into a single timeslot (DS0) of the
associated T1 CSU. Uses a shelf midplane to receive/transmit data to a
CSU module
TAC 2130 Integrated
DSU/CSU
Standalone (for data purposes) DSU/CSU, supports a single synchronous
serial interface only. Does not use any midplane bus to transfer data to
any other module.