RS-422 and RS-232C Cable

Section 2-2

Connecting Link Adapter AL004-(P)E

When using a Link Adapter, connect both RS-232C and RS-422 cable straight across, as shown in the following diagram. Here the SD terminal of the host com- puter, for example, is connected to the SD terminal of the Link Adapter. See 5-4 Link Adapter AL004-(P)Efor the internal configuration of the Link Adapter.

Host computer

 

Link Adapter

 

 

 

Host Link Unit

 

 

 

 

AL004-(P)E

 

 

 

 

 

 

1

FG

 

FG

1

7

FG

 

 

 

FG

7

 

 

 

7

SG

SG

7

3

SG

 

SG

3

2

SD

SD

2

9

SDA

 

SDA

9

3

RD

RD

3

5

SDB

 

SDB

5

 

 

 

 

 

6

RDA

 

RDA 6

 

 

 

 

 

1

RDB

 

RDB 1

Wiring RS-232C and RS-422 Cable Connectors

Cable Preparation

Prepare cables as follows before soldering:

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

2.Thread the end of the cable through a boot at least 50 mm up the cable.

3.Being careful not to damage the braiding underneath, use a razor blade to cut away 25 mm of sheath for an RS-442 cable or 40 mm for an RS-232C cable.

4.Using scissors, cut away all but 10 mm of the exposed braiding.

5.Using wire strippers, remove the covering from the last 5 mm of all wires.

6.Move the boot to the cut edge of the sheath and fold the braiding back over the end of it.

7.Wrap aluminum foil tape 1 1/2 turns over the top of the braiding on top of the boot.

7

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Omron C-series manual Section, Connecting Link Adapter AL004-PE