Troubleshooting Hardware Issues; Power Supply Failure; Troubleshooting - 1Pps, 10 Mhz Outputs - Spectracom PRISMA VelaSync User Manual

5.1.6 Troubleshooting Hardware Issues
Failure Mode
Info LED on front panel blinks slowly.
System status window on HOME
screen of Web UI lists a power sup-
ply alarm.
Info LED on front panel blinks fast
(1x/sec)
Info LED is permanently red.
System Status window on HOME
screen of Web UI lists RAID failure.
5.1.6.1 Power Supply Failure
If either of the two redundant power supply modules fail, the other module will take over
without service interruption. The UID LED on the front panel (see "Front Panel Overview" on
page 10) will blink slowly until the failed module has been replaced.
Do not user power supplies other than the original model installed in the unit. Replacement
power supplies can be procured directly from Spectracom (part no. PS09R-070J-SL01), or from
the OEM manufacturer, Supermicro Computer (model PWS-651-1R).
To find out how to replace a power supply, see "Replacing a Power Supply" on page 151.
5.1.7 Troubleshooting – 1PPS, 10 MHz Outputs
If the 1PPS and/or the 10 MHz output(s) are not present, input power may not be applied. Or
VelaSync is not synchronized to its input references and Signature Control is enabled.
VelaSync User's Manual
Failure Mode
Symptom Diagnosis
One of the two
redundant
power supplies
is defective.
Fan failure
CPU overheat
One of the two
RAID harddisks
is defect.
Failure Mode
Resolution
Replace defect power supply. See
Power Supply" on page 151
Contact Spectracom Service.
Check environment temperature. Ensure the front
bezel is installed. Check bezel filter for con-
"Maintenance and Service"
tamination (see
on page 220
).
"Removing/Installing a
Replace harddisk. See
Hard Disk Drive" on page 152
Replacement harddisks are available from Spec-
tracom).
APPENDIX
"Replacing a
.
. (Note:
197