Perle Systems Iolan Sds4 Hl Device Server 4030370 User Manual

Pinouts and Cabling Diagrams  406

EIA-232 Cabling Diagrams

The following diagrams show how a standard straight through cable should be configured when 
connecting to a DB25 modem.

This cabling table does NOT apply to SCS48C/SCS32C/SCS16C/SCS8C (Sun/Cisco), 
SDS32C/SDS16C/SDS8C (Electrical Utility) or medical unit models.

2 (TxD)

2 (RxD)

3 (RxD)

3 (TxD)

4 (RTS)

4 (CTS)

5 (CTS)

5 (RTS)

6 (DSR)

6 (DSR)

7 (GND)

7 (GND)

8 (DCD)

8 (DCD)

20 (DTR)

20 (DTR)

2

(DCD)

1

8 (DCD)

3

(RTS)

2

4 (CTS)

4

(DSR)

3

6 (DSR)

5

(TxD)

4

2 (RxD)

6

(RxD)

5

3 (TxD)

7

(GND)

6

7 (GND)

8

(CTS)

7

5 (RTS)

9

(DTR)

8

20 (DTR)