Cabletron Systems 2208 User's Guide download pdf (Page 36)

Chapter 3: Installation

3-10 2H28-08R SmartSwitch 2208 User’s Guide

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:

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 Section 2.2.

d. To manage the connected port, see Section 5.11.

If a link has not been established, refer to Chapter 4, Troubleshooting,

before contacting the Cabletron Systems Global Call Center. Refer to

Section 1.6 if the problem has not been resolved.

NOTE

The port RX LED ﬂashes green and amber during bootup.

2159-03

Port

SC Connector

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Cabletron Systems 2208 User's Guide Page 36