Cabletron Systems 2H28-08R User Manual page 36

Chapter 3: Installation
Figure 3-6 2H28-08R Fiber Port Connections
4. Verify that a link exists by checking that the port RX LED is on
(flashing amber, blinking green, or solid green). If the RX LED is off
and the TX LED is not blinking amber, perform the following steps
until it is on:
The port RX LED flashes green and amber during bootup.
NOTE
a. Ensure that the power is turned on for the device at the other end
of the link.
b. Verify that the fiber strands between the applicable port on the
2H28-08R and fiber optic device on the other end of the fiber optic
link segment are properly crossed over.
c. Make sure that the fiber connection meets dB loss specifications
outlined in
d. To manage the connected port, see
If a link has not been established, refer to
before contacting the Cabletron Systems Global Call Center. Refer to
Section 1.6 if the problem has not been resolved.
3-10
Port
SC Connector
Section 2.2.
2H28-08R SmartSwitch 2208 User's Guide
Section 5.11.
Chapter 4, Troubleshooting,
2159-03