Unterminated 10Base-2 (Bnc); Unterminated 10Base-2 (Bnc) Configuration; Cabling The Unterminated 10Base-2 (Bnc) Module - 3Com CoreBuilder 2500 Getting Started Manual

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HAPTER ABLING

Unterminated 10BASE-2 (BNC)

This section contains information on common
unterminated 10BASE-2 (BNC) configurations and
how to cable the unterminated 10BASE-2 (BNC)
media option.
Unterminated 10BASE-2 (BNC) Configuration
The sample configuration in
page 4-12 using the terminated 10BASE-2 (BNC)
module can also be applied to the unterminated
10BASE-2 (BNC) module.
Cabling the Unterminated 10BASE-2 (BNC)
Module
The unterminated 10BASE-2 (BNC) module offers
eight unterminated Ethernet 10BASE-2 ports that
use BNC connectors and provides a 10 Mbps
connection over multimode fiber.
Figure 4-13 on
To cable the unterminated 10BASE-2 (BNC) module,
attach the male end of the 10BASE-2 (BNC)
segment to the female BNC connector on the
module.
Repeat the process for the remaining ports.
If a port is at the end of a 10BASE-2 (BNC)
segment, you must provide an external 50 Ohm
terminator. Because using a T connector with a
terminating plug may interfere with adjacent ports,
3Com recommends that you terminate ports with
the ITT Pomona Y connector, Model 4896, with a
terminating plug on the end, or the ITT Pomona
Feed-Thru Terminator, Model 4119-50.
and Figure 4-16 illustrate both types of terminator
interfaces.
A Y connector also may be necessary when the port
is in the middle of a segment.
Figure 4-15