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September 1999 P/N 880-503284-001-A1 - page 10 / 65

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Overview

Verilink proprietary management program Access Manager 2000, which operates only under Windows™ 3.1.

Verilink proprietary management program Node Manager, which runs under Windows 95™ or NT.

Types of NCC Node Controllers

Verilink’s NCC family of node controllers includes the following modules:

The NCC 2020 is a TAC 2010 T1 CSU with the addition of a node controller function (documented in this manual).

The NCC 2130 is a TAC 2130 IDCSU (Integrated T1 CSU/DSU) with the addition of a node controller function. See the NCC 2130 User Manual for full details.

TAC 2010

CSU

T1 CSU which may be used as a CSU only (CSU mode), part of a CSU/DSU (Mux mode) or in a combination of both (Drop & Insert Mode). May 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). May 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

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

TAC 2130

Compatible Modules

Types of application modules which may be managed by the NCC 2020 are:

Usage

Multiplexer, associated T1 CSU. Uses a shelf midplane to receive/transmit data to a

5 port DSU

CSU module.

Table 1-1 Module

NCC Compatible Modules Type

Integrated DSU/CSU

Standalone (for data purposes) DSU/CSU, supports a single synchronous serial interface only. Does not not use any midplane bus to transfer data

to any other module.

1-2

Verilink NCC 2020 User Manual

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