B&B Electronics 850-14200--95 - Manual User Manual

Page 19

RJ-48 Pinout

The following table lists the pin configuration for the RJ-48 connector.

Pin

Signal

1 Receive

Ring

2 Receive

Tip

3 No

Connection

4 Transmit

Ring

5 Transmit

Tip

6 No

Connection

7 No

Connection

8 No

Connection

PIN 1

Troubleshooting

To test a media converter by itself, first make sure there is an appropriate fiber
patch cable, then perform the following steps:
1. Connect the media converter to the T1/E1 device with a standard UTP cable.

If the NO LNK LED for the copper port remains on, a valid signal is not being
received. Push the crossover push button on the front of the unit. Verify
that the NO LNK LED for the copper port is off.

2. Loop a single strand of fiber from the transmit port to the receive port of the

media converter. Verify that the NO LNK LED for the fiber port is off.
Or
For single-strand fiber products, connect a single fiber cable from the Local
iMcV-T1/E1/J1 Repeater to the remote iMcV-T1/E1/J1 Repeater. Verify that
the NO LNK LED for the fiber port is off.

NOTE

iMcV-T1/E1/J1 Repeater modules cannot be connected to iMcV-T1/E1/J1
LineTerm modules successfully.