Verilink Access Manager 2000 (896-502037-001) Product Manual - Manual (Page 226)

Configuring the T1 Network
5-102 Access Manager 2000 User Manual
Each DIU 2140 can have any combination of asynchronous and
synchronous data equipment connected to it.
DIU Configuration Error Messages
If you see an error message when you press to store and download
your DIU settings, the message indicates that the settings you have
chosen are invalid. One of the following error messages may appear:
■
TOO MANY DIU CONFIGURED appears if you assigned more
than 24 total DS0s to the same NCC 2020 (CCC 1020) or TAC 2010
(TAC 1010).
■ DUPLICATE CHANNEL ASSIGNMENT appears if you assigned a
channel of a DS1 line to a DIU data port and that channel was
previously assigned to another DIU or data port.
■
SUM OF THE BAUD RATES EXCEEDS SYSTEM MAXIMUM
(48000) appears if the sum of the data port baud rates assigned to
a DIU 2140 exceeds the maximum aggregate rate of 48 kbps.
■ INVALID PORT xxx BAUD RATE appears when the baud rate
(xxx) you entered is not valid for the mode of operation selected.
Configuring circuits
This section describes how to add, edit, delete, view, and list circuit
definitions. The following subsections will show you how to arrive at the
appropriate screens for the procedure you wish to execute. All fields
within each screen are described in the order they appear (from top to
bottom).
A circuit is defined as two CSUs (Channel Service Units) and the
connecting DS1 facilities between each element accessed by Access
Manager. If a network circuit is only an end section and does not have a
far-end CSU (for example, a network circuit that terminates in a DACS or
ESS switch), then an Access Manager circuit cannot be built for the
network circuit.
If you change the node name in the node definition, that change in name
is not automatically made in the circuit and route definitions that include
that node. This creates problems during database analysis by circuit and
on-line element status; furthermore, in polling the far-end, data might not
be stored properly
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