Led And Network Verification; Using The Corebuilder 5000 Controller Module To Verify Led Operation; Media Module Led Interpretation - 3Com CoreBuilder 5000 User Manual

LED and Network
Verification
Using the
CoreBuilder 5000
Controller Module
to Verify LED
Operation
Table 4-3

Media Module LED Interpretation

LED Name Color
Module Status Green
Ring-In/ Green
Ring-Out
(RI/RO) LEDs
Port Status Green
Jitter Green
Attenuator
Card (JA, JA1,
JA2)
RI/RO (ATPP, Green
ATP)
This section provides information on LED and Network verification
information for the media module. The following topics are discussed:
Using the CoreBuilder 5000 Controller Module to Verify LED
Operation
Using the DMM to Verify Network Connections
For more information on the DMM, refer to the Distributed
Management Module User Guide.
The CoreBuilder 5000 hub's controller module is equipped with an LED
Test button on the front panel. Use the LED Test button to verify LED
operation. When you press this button, the module initiates a test to all
modules in the hub. All LEDs should respond by lighting continuously
for approximately five seconds. Any LED that does not light is defective.
This test does not disrupt network operation.

LED and Network Verification

State Indicates
OFF No power.
Blinking Module failed self diagnostics.
ON Module powered up OK.
OFF Trunk disabled.
ON Trunk enabled and operating.
Blinking Trunk enabled, but not operating.
ON Port enabled, phantom detected, port
enabled onto ring, status OK.
1 blink Port enabled, no phantom.
OFF Port disabled.
OFF Card not installed.
ON Card installed and operating normally.
OFF Ports 17 and 18 are lobe ports.
ON Ports 17 and 18 Trunk (RI/RO) ports.
4-17