Cabletron Systems SEHI-22FL User Guide

Connect an EPIM-A to an external network segment as follows:

1. Attach an external transceiver to the network segment to be connected 

to the AUI port. Refer to the applicable transceiver manual.

2. Attach an AUI cable no longer than 50 meters in length to the 

transceiver connected to the network in step 1.

3. Connect the AUI cable to the EPIM-A. (See Figure 5-5.)

4. Lock the AUI connector into place using the connector slide latch.

Ensure that the Signal Quality Error (SQE or “heartbeat”) test 
function is disabled on the external transceiver connected to 
the SEHI. The SEHI will not operate and the network will be 
unusable if the transceiver has the SQE test function enabled. 
Refer to the applicable transceiver manual.

Attach thin coaxial segment directly to
BNC connector when internal
termination switch is set to On (   ).

When internal termination switch
is set to Off (   ) follow these
procedures:

Connect BNC T-connector to port.

Attach a terminator or terminated
thin coaxial segment to one female
connector of T-connector.

Connect a terminated thin coaxial
segment to other female connector
of T-connector.

1490_16

SEHI Book  Page 9  Friday, April 19, 1996  10:46 AM