Symmetricom SSU-2000 User Manual page 229

SSU+>al 2a10
2002-07-04T10:25:31 ID: SSU2000 Name: SSU
Output #
------- ---- ------------------ --------------- ------------- ---------
1A06 (00) Hdw Config
1A06 (01) Configuration
1A06 (02) Clk-A
1A06 (03) Clk-B
1A06 (04) Clk-C
1A06 (05) Clk-D
1A06 (06) Clk Selected
1A06 (07) VCXO
1A06 (08) PLL
1A06 (09) Sync
1A06 (10) Squelch
1A06 (11) PortFlt
SSU->
Provisioning the Squelch Parameter
To view or provision the squelch using ICS or TL1 commands, refer to the
SSU-2000 Technical Reference.
Note: For ports set to E1, the frame mode is always CAS, the CRC is
always enabled, and the SSM is sent to all five bit positions (4 through 8).
You cannot change these settings.
Bypass Clock (Clock C) Alarms
The SSU-2000 has many configuration options. In order for the system to generate
the CLK-C used by the E1/2048 kHz Output module, you must install one of the
following Input modules and connect an input signal to the module: DS1, E1, or CC.
If the SSU-2000 has only GPS Input module(s), then set the Bypass mode to OFF
to prevent the Output modules from generating the CLK-C alarm (alarm 4).
Output Fault Handling
When an output fault occurs, a port fault alarm occurs. Fault recovery is automatic;
when the fault is no longer present, normal operation continues. To prevent
"bouncing," or reporting errors continuously, the module increments an error counter
each time a port fault occurs. If the error count exceeds a preset threshold, then the
faulty port is disabled. You must disable and then enable the port using software
commands to return it to normal service. The error counter automatically resets
when there are no errors in 24 hours.
The port status message indicates the state of each port. The letter code for each
port is as follows:
F – port fault
N – port is disabled
blank – port is in normal service
12713020-002-2 Revision F.01 – January 2007
Alarm Status
Ok
Ok
Ok
Ok
Ok
Ok
Ok
Ok
Ok
Ok
Ok
Ok
Chapter 8 Output Module Reference Data
E1/2048 kHz Output Module
Level(*=Elev) Ports
Major
Major
Major
Major
Major
Major
Major
Major
Major
Major
Major
Major
SSU-2000 User's Guide 229