Multitech MT56DSU-R Manual do Proprietário descarregar pdf (Página 54)

MT56DSU-R Owner's Manual

LOOPBACK CABLE

DESCRIPTION

This cable lets you test the MT56DSU-R when a second DSU is not

available. It tests the DSU by having the DSU generate a signal,

then the cable loops the signal back to the DSU for comparison to

the original signal sent. You can order this cable (CADSURLB) from

Multi-Tech, or build one using the instructions below. Refer to

Chapter 4 for test procedures.

SCHEMATIC

BUILD INSTRUCTIONS

1. Strip cable insulation 3/4" .

2. Cut wires 2, 5, 6, 7,9 off.

3. Strip wires 1, 3, 4 and 8 a 1/4"

4. Solder wires 1 and 8 together.

5. Solder wires 3 and 4 together.

6. Cover solder connections with 1"of shrink tube.

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Multitech MT56DSU-R Manual do Proprietário Página 54