User guide

Canopy System User Guide Procedures for Troubleshooting
pmp-0229 (Mar 2013)
577
1. Verify that the connector crimps on the Ethernet cable are not loose.
2. Verify that the Ethernet cable is not damaged.
3. If the Ethernet cable connects the module to a network interface card (NIC),
verify that the cable is pinned out as a straight-through cable.
4. If the Ethernet cable connects the module to a hub, switch, or router, verify that
the cable is pinned out as a crossover cable.
5. Verify that the Ethernet port to which the cable connects the module is set to
auto-negotiate speed.
6. Power cycle the module.
RESULT: Approximately 25 seconds after the power cycle, the green LED
labeled LNK should light to indicate that the link has been established. If the
orange LED labeled SYN is lit instead, then the module is in Alignment mode
because the module failed to establish the link.
7. In this latter case, and if the module has encountered no customer-inflicted
damage, then request an RMA for the module.
Module Does Not Power Up
To troubleshoot the failure of a module to power up, perform the following steps.
Procedure 49: Troubleshooting failure to power up
1. Verify that the connector crimps on the Ethernet cable are not loose.
2. Verify that the Ethernet cable is not damaged.
3. Verify that the cable is wired and pinned out according to the specifications
provided under Wiring Connectors on Page 188.
4. Remove the cover of the module to expose the components on the printed wiring
board.
5. Find the Ethernet transformer, which is labeled with either the name Halo or the
name Pulse.
6. Verify that the Ethernet transformer does not show damage that would have
been caused by improper cabling. (You can recognize damage as the top of the
transformer being no longer smooth. The transformer in the following picture is
damaged and is ineligible for an RMA.)
7. Connect the power supply to a known good module via a known good Ethernet
cable.
8. Attempt to power up the known good module and