Cabletron Systems SEH100TX-22 manual Epim 1 RCV LED Epim 2 RCV LED

Chapter 6: Troubleshooting

MGMT

This LED flashes when an intelligent hub is managing the SEH. If this LED is not flashing, an intelligent hub is not managing the SEH. If an intelligent hub is attached to the SEH and the LED is not flashing, inspect the HubSTACK interconnect cables for proper connection.

CLN

When this red LED flashes, it indicates that a collision has occurred on one of the ports.

RCV

When a yellow RCV LED flashes, it indicates that the SEH is receiving data packets from the associated port segment. Each SEH port has a corresponding RCV LED:

• Network Ports: RCV LEDs		1-22
•	EPIM 1: RCV LED	E1
•	EPIM 2: RCV LED	E2

LNK

When a green LNK LED is on, it indicates an established link between the associated port and the device at the other end of the segment. The LNK LED remains on as long as a link is maintained. Each SEH Network Port (ports 1-22) has a corresponding LNK LED.

6-4 SEH100TX User’s Guide