I-4
1/19/05
ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000
About Trunk Conditioning
Beta Draft Confidential
Configuration Values in the Upstream Direction
If the user wants to send a fixed data or signaling pattern in the upstream direction,
then the port must be configured as shown in
in egress direction when alarms
are present. This will cause data as 0x7F and signaling as 1010 to be transmitted in the
upstream direction.
Configuration Values for Testing
If the user wants to test any port when no alarm conditions are present and, therefore,
wants to force any fixed data or signalling pattern in either direction, then the PPort
Admin Status must be set to Down and the Tx Force Conditioning Mode or the Rx
Force Conditioning Mode must be set to any value other than None. For example, if
user is doing diagnostic testing in the upstream direction, then the Tx Force
Conditioning Mode must be set to “data and signaling” (see
) and when the
port Admin Status is set to “down,” the configured data and signaling values are
forced on to the line. This causes the line to be overwritten with 0xFF in data and 0xA
(1010) as ABCD signaling as soon as the port Admin Status is “down.” Then as soon
as port Admin Status is set to “up,” the force conditioning patterns are replaced by
original live data.
Table I-3.
Example of Rx Trunk Conditioning Values in Upstream
Direction
Field
Value
Configuration Value
Rx Conditioning Data
0 to 0xFF
0x7F
Rx Conditioning Signal
0 to 0xF
0xA
Rx Conditioning Mode
1 (None)
2 (Data and Signaling)
3 (Data)
4 (Signaling)
2 (Data and Signaling)
default
Rx Force Conditioning Mode
1 (None)
2 (Data and Signaling)
3 (Data)
4 (Signaling)
1 (None) default
Summary of Contents for CBX 3500
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