Cabletron Systems BRIM-T6 - Manual (Page 29)

MONITORING AND TROUBLESHOOTING
4-3
4.2 CHECKING THE CONNECTION
This section provides a checklist for troubleshooting network connection
problems.
The LNK LED on the TPIM lights green when there is an established link
between the BRIM-T6 and the device at the other end of the media
connection. If, however, the LNK LED lights red or is not lighted, a link
has not been established. To resolve the problem, try the following
procedures:
• Check that the host device and the device at the other end of the
segment have power.
• Check that the TPIM is securely installed in the BRIM-T6 and that the
BRIM-T6 is securely installed in the host device.
• Check for correct connector-to-port attachments at the BRIM-T6 and
the destination device.
• Inspect the cabling system (cable and connectors) for damage and
replace damaged components.
Table 4-1. LED Specifications Summary
LED Status Description
16Mb (Ring Speed) Solid Yellow
Off
16 Mbps
4 Mbps
XMT (Transmit) Flashing Green
Solid Red
Blinking Red
Transmitting Traffic
Disabled
Speed Fault Error
RCV (Receive) Solid Green
Flashing Yellow
Solid Red
Enabled
Receiving Traffic
Disabled
STB (Standby) Solid Yellow Standby
LNK (Link) Solid Green Media Link OK