Also, since 802.3 AUI cables provide a ground shield isolated from the signal and power pair's shields, these cables provide additional noise immunity in noisy operating environments.

Cable Configuration Rules

Refer to the following configuration rules when configuring your network.

1.If the Bridge Module is to be connected to an IEEE 802.3 transceiver, such as DEC's DESTA™, the transceiver cable must be IEEE 802.3 compliant.

2.If the Bridge Module is to be connected to a non-IEEE 802.3 transceiver, such as DEC's H4000™, the transceiver cable can be either Ethernet V2.0 or IEEE 802.3 compliant.

3.IEEE 802.3 transceiver cables and Ethernet transceiver cables cannot be interconnected.

4.A transceiver cable between an Bridge Module and a transceiver cannot exceed 38 meters (125 feet). This accounts for the Bridge Module internal cable equivalency of 2 meters (6.5 feet).

5.If you use office transceiver cable, it should not exceed the maximum transceiver cable distance of 12 meters (39.4 feet).

6.If the configuration includes any other device with internal cabling equivalency, subtract that amount from the 38-meter maximum. For example, when connecting the Bridge Module to a configuration that includes a DELNI, allow 5 meters of cabling equivalency loss for the

DELNI.

Cable Pinouts C - 5

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3Com 5102B-EE installation and operation guide Cable Configuration Rules