Chapter 3: Installation

3.If the transceiver PWR LED is OFF with the AUI cable connected, perform the following steps:

a.Check the AUI connections for proper pinouts.

b.Check the cable for continuity.

c.Reconnect the AUI cable to the EMM-E6 and the device.

If the transceiver PWR LED remains OFF, contact Cabletron Systems Technical Support.

3.5.5Connecting a 10BASE2 Segment to an EPIM-C

NOTE

For proper operation, the EPIM-C module to be configured for use in the EMM-E6 module must be of EPIM board revision 05 or greater. Board revision numbers are found following the part number printed on the Printed Circuit Board of the EPIM.

To connect a thin coaxial cable segment to an EPIM-C perform the following steps:

Before attaching a male BNC connector to a female BNC barrel connector or terminator, look into the end of the connector to verify that the gold contact pin is present and centered. Any bent or broken pins may not connect properly and should be replaced.

1.Set the Internal Termination (TERM) switch, located to the right of the port and labeled TERM, to one of the following positions:

a.The ON position () to internally terminate the thin coaxial cable segment at the port. Thin coaxial cable segments may be directly connected to the port.

b.The OFF position () to not internally terminate the thin coaxial cable segment at the port. Segments may only be connected through T-connectors which are connected to properly terminated segments on both ends.

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EMM-E6 Installation Guide

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Cabletron Systems EMM-E6 manual Connecting a 10BASE2 Segment to an EPIM-C