Symmetricom TimeCreator 1000 User Manual page 118

Chapter 6 Maintenance and Troubleshooting
Diagnosing the IOC
1. Save the contents of the IOC memory in the IMC by issuing the following
command:
Type
set configuration backup ioc
2. Issue the following command to take the IOC out of service:
Type
set ioc-state IOC1 disable
3. Attach a wrist grounding strap and connect it to the TimeCreator 1000 chassis.
4. Loosen the captive retaining screws and pull out on them to unseat the IOC from
the shelf.
Warning: To avoid possible electrostatic damage to the IOC, place it
in a static-free bag or on a static-free surface.
5. Place the IOC in a static-free bag or on a static-free surface.
Install a new IOC using the appropriate procedure in
120.
Removing a Redundant IOC
To remove one IOC when two IOCs are in a shelf, use the following procedure:
Note: To avoid generating unnecessary alarms, be sure to take the
IOC out of service before removing it.
Caution: To avoid a loss of output signals, do not take the only IOC in
a shelf out of service.
1. Issue the following command to take the IOC out of service:
Type
set ioc-state disable IOC2
Note: An IOC that is out of service cannot be selected to generate or
monitor outputs. An out-of-service IOC does not generate alarms.
2. Attach a wrist grounding strap and connect it to the TimeCreator 1000 chassis.
118 TimeCreator 1000 User's Guide
and press Enter.
and press Enter.
Replacing the
and press Enter.
097-93100-01 Revision C – February, 2010
IOC, on page