User guide

March 2005 Managing Your Canopy Network
Through Software Release 6.1
Page 384 of 425 Issue 1
Canopy System User Guide
5. Attempt to power up the known good module.
6. If the known good module fails to power up, request an RMA for the power
supply.
end of procedure
31.5.9 CMM2 Does Not Power Up
To troubleshoot a malfunctioning CMM2, perform the following steps.
Procedure 56: Troubleshooting CMM2 that malfunctions
1. Verify that the 115-/230-V switch (in the lower right-hand corner of the CMM2) is
in the correct position for the power source. (See Figure 101 on Page 264.)
Applying power when this switch is in the wrong position can damage the CMM2
and will render it ineligible for an RMA.
2. Verify that the electrical source to the CMM2 meets Canopy specifications. See
Table 14 on Page 53.
3. Verify that the electrical source is connected to the CMM2 at the proper
connection point. (See Figure 103 on Page 266.)
4. Verify that the fuse is operational.
5. Verify that the fuse is properly seated in the receptacle.
6. Attempt to power up the CMM2.
7. If the power indicator on the interconnect board of the CMM2 fails to light when
power is applied to the CMM2, request an RMA for the CMM2.
end of procedure
31.5.10 CMM2 Does Not Pass Proper GPS Sync to Connected Modules
If the Event Log pages of all connected modules contain Loss of GPS Sync Pulse
messages, perform the following steps.
Procedure 57: Troubleshooting CMM2 not passing sync
1. Verify that the GPS antenna has an unobstructed view of the entire horizon.
2. Verify that the GPS coaxial cable meets specifications.
3. Verify that the GPS sync cable meets specifications for wiring and length.
4. If the web pages of connected modules indicate any of the following, then find
and eliminate the source of noise that is being coupled into the GPS sync cable:
◦ In the GPS Status page
− anomalous number of Satellites Tracked (greater than 12, for example)
− incorrect reported Latitude and/or Longitude of the antenna
◦ In the Event Log page
− garbled GPS messages
− large number of Acquired GPS Sync Pulse messages