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Chapter 4 Configuring the STM-1 Mode Ports and Channels Using the Console
Configuring All Channels on a Port (Channelization Disabled)
4-14
255-700-714R11.0
PacketStar
®
PSAX 1-Port Channelized OC-3/STM-1 CES Module User Guide
, Issue 1
Release 11.0.0
[SSM RX]
Default:
QL_DNU
Range: N/A
Format: Predefined
Displays the contents of the incoming SSM bits on the port
the Stratum 3–4 module is using for line timing. The field
values represent the clock source quality level (QL) of the
SSMs.
QL-DNU
Indicates the signal carrying this SSM shall not be used for
synchronization because a timing loop situation could result
if it is used.
GL-INV
n
Indicates an unallocated SSM value is received where n=0,
1, 3, 5, 6, 7, 9, 12, 13, or 14.
GL-PRC
Indicates the source of the trail is a PRC clock as defined in
Recommendation ITU-T G.811.
GL-SEC
Indicates the source of the trail is a SEC clock as defined in
Recommendation ITU-T G.813, Option I.
GL-SSUL
Indicates the source of the trail is a Type VI SSU clock as
defined in Recommendation ITU-T G.812.
GL-SSUT
Indicates the source of the trail is a Type I or V SSU clock as
defined in Recommendation ITU-T G.812.
[SSM TX]
Default:
QL_DNU
Range: N/A
Format: Predefined
Displays the contents of the SSM bits transmitted by all the
OCn/STMn module ports. The port which is active for the
purpose of stratum line timing transmits QL-DNU. All of the
other OCn/STMn modules transmit the SSM bits shown in
this field.
QL-DNU
Indicates the signal carrying this SSM shall not be used for
synchronization because a timing loop situation could result
if it is used.
GL-INV
n
Indicates an unallocated SSM value is received where n=0,
1, 3, 5, 6, 7, 9, 12, 13, or 14.
GL-PRC
Indicates the source of the trail is a PRC clock as defined in
Recommendation ITU-T G.811.
GL-SEC
Indicates the source of the trail is a SEC clock as defined in
Recommendation ITU-T G.813, Option I.
GL-SSUL
Indicates the source of the trail is a Type VI SSU clock as
defined in Recommendation ITU-T G.812.
GL-SSUT
Indicates the source of the trail is a Type I or V SSU clock as
defined in Recommendation ITU-T G.812.
Table 4-5. Channelized OC-3 or STM-1 CES Port Configuration Window Field Descriptions (Continued)
Field Name
Field Value
Description
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