ERL L-PRO 4000, User Manual

Page: 38 / 406

Notes:
Relay is DCE, PC is DTE.
Pins 1 and 6 are tied together internal to the relay.
Table 2.5: Signal connections to pins on Relay Port
Signal Name
Direction PC<-> Relay Pin # on the Relay Port
DCD

1
RxD

2
TxD

3
DTR

4
Common 5
DSR

6
RTS

7
CTS

8
No connection 9
Table 2.6: Cable Pin Connections
Male DB-9 Cable End for Relay Port Female DB-9 Cable End for Computer Port
Pin # on Cable Pin # on Cable
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9