Symmetricom SSU-2000 User Manual page 223

Bypass Clock (CLK-C) Alarms
One of the reference clocks available to the Sine Output module is CLK-C. If both
CLK-A and CLK-B are lost, the output module selects CLK-C as its reference,
provided the Bypass mode has been enabled for that module. In the event CLK-C is
lost, the module generates a CLK-C alarm (alarm 4), and the SOURCE C LED on
the front panel turns amber.
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
The following example shows port 4 with a fault, port 5 is disabled, and the
remaining ports are in normal service.
SSU2000->out 1a08
2004-06-21T17:59:18Z ID: SSU2000 Name: SSU2000
Module Name: J/SW Output Module
OUT STATUS Clk Clk
Loc# Type Sta Sel
---- ----- --- --- -------- ---- --- ----------------------------------------
1A08 J/SW Ok
OUTPUT SETUP
Loc# Type Bypass
---- ----- ------
1A08 J/SW On
Frequency: 6.312MHz
Squelch:
P[ 1]= 0, P[ 2]=
P[ 6]= 0, P[ 7]=
P[11]= 0, P[12]=
P[16]= 0, P[17]=
12713020-002-2 Revision F.01 – January 2007
Stat
A B C D Redt PQL
A / / / /N 3
0, P[ 3]= 0, P[ 4]=
0, P[ 8]= 0, P[ 9]=
0, P[13]= 0, P[14]=
0, P[18]= 0, P[19]=
Chapter 8 Output Module Reference Data
Japanese Sine Wave Output Module
Port Status 1 1 1 1 1 1 1 1 1 1 2
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0
/ / / /F/N/ / / / / / / / / / / / / / /
0, P[ 5]= 0,
0, P[10]= 0,
0, P[15]= 0,
0, P[20]= 0,
SSU-2000 User's Guide 223