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Figure 3-4
➀
RJ45 connector
➁
RJ45 port connector
3.
3-12
Connecting a Twisted Pair Segment to the DFE-Gold Module
Verify that a link exists by checking that the port RX (Receive) LED
amber, blinking green, or solid green). If the RX LED is OFF and the TX (Transmit)
➃
LED
is not blinking amber, perform the following steps until it is on:
a.
To view the receive and transmit activity on a group of segments, press the
GROUP SELECT button
(Groups 1 through 3 on 4G4202‐60 as shown in 4G4202‐60, or Groups 1 through 5
on the 4G4282‐41). Each time the GROUP SELECT button is pressed, the GROUP
LED lights up in sequence, indicating which Group is selected. The receive and
transmit activity for that group of segments is then indicated by the RX and TX
LEDs for each segment.
b. Verify that the cabling being used is Category 5 UTP with an impedance between
85 and 111 ohms. If the port is to operate at 100 Mbps, category 5 cabling must be
used.
c.
Verify that the device at the other end of the twisted pair segment is on and
properly connected to the segment.
d. Verify that the RJ45 connectors on the twisted pair segment have the proper
pinouts and check the cable for continuity. Typically, a crossover cable is used
between hub devices. A straight‐through cable is used to connect between
switches or hub devices and an end user (computer). Refer to Figure
Figure 3‐6 for four‐wire RJ45 connections. Refer to Figure 3‐7 and Figure
eight‐wire RJ45 connections.
À
Á
➂
Transmit status (TX) LED)
➃
Receive status (RX) LED
➄
(see Figure
3‐4) to step to the group of interest
Ä
Â
Ã
➄
GROUP SELECT button
➂
is ON (flashing
3‐5 and
3‐8 for
Installation
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Table of Contents
Troubleshooting
