Nortel Communication Server 100 Manual page 138

138 Carrier Remote IPE acceptance testing
Data calls
Use only one carrier link between the local and the remote sites. To verify
that a call connection supports data calls and that when a carrier link is
in Alarm Level 2 no new data calls will be allowed, follow the steps in
Procedure 33 "Testing data calls" (page
Procedure 33
Testing data calls
Step
1
2
3
4
5
6
7
8
Action
From a computer or a data terminal at the remote site, access a
data terminal or computer at the local site.
Alternatively, from a computer or a data terminal at the local site,
access a data terminal or computer at the remote site.
Transmit and receive data files in both directions.
Open a transmitted file to verify its integrity.
Use the BERT set to insert bit errors into the carrier link
transmitting data so it exceeds Alarm Level 2 threshold.
Since the sparing feature is not available, the carrier continues to
operate in Alarm Level 2 condition.
From a different data terminal, attempt to establish a data call to
a computer or data terminal at the opposite side of the link.
The connection is not established and the No New Data (NND)
parameter on the display shows YES (yes no new data) for the
carrier used, when the STAT command in LD 32 is executed.
Remove the BERT set from the carrier link and retry the data call
connection.
Wait a few minutes or use the MMI command C A before retrying
so that the carrier bit error monitor determines that the cause of
bit errors is no longer present. The data call is now established
because the bit error source has been removed and the Alarm
Level is back to 0.
Verify the integrity of this data connection by checking the
transmitted files.
Disconnect the data calls.
Nortel Communication Server 1000
Carrier Remote IPE Fundamentals
NN43021-555 04.01 4 June 2010
Copyright © 2007-2010 Nortel Networks. All Rights Reserved.
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