Omron Programmable Terminals NT31 NT31C Manual de usuario descargar pdf (Pagina 274)

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Appendix E

Making the Cable

The procedure for making up the cable is described below.

Also refer to this procedure for making a connecting cable for use with RS-422A/485 type connections.

Cable Preparation

The preparation of the cable differs according to whether or not the shielding wire is to be connected to the FG.

Cable with Shielding Wire Connected to FG

1, 2, 3... 1. Cut the cable to the required length.

2. Remove the external vinyl insulation from the cable with a razor blade. Take care not to damage the

shielding underneath.

3. Cut back the shielding wire with scissors.

4. Use wire strippers to strip the insulation from each wire.

5. Fold back the shielding wire.

6. Wrap aluminum foil tape around the folded-back shielding wire.

40 (1.57) (RS-232C)

25 (0.98) (RS-422A)

Units: mm (inch)

Aluminum foil tape

(1)

(2)

(3)

(4)

(5)

(6)

(0.19)

(0.39)

Cable with Shielding Wire Not Connected to FG

1, 2, 3... 1. Cut the cable to the required length.

2. Remove the external vinyl insulation from the cable with a razor blade. Take care not to damage the

shielding underneath.

3. Cut back the shielding wire with scissors.

4. Use wire strippers to strip the insulation from each wire.

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Omron Programmable Terminals NT31 NT31C Manual de usuario Pagina 274