Pinouts; Db25 Male - Black Box Terminal Server User Manual

Pinouts

Pinouts

DB25 Male

This section defines the pinouts for the DB25 male connection used on the 1-port Terminal
Server.
The following table provides pinout information:
Pinout
1
2 (out)
3 (in)
4 (out)
5 (in)
6 (in)
7
8 (in)
12
13
14
15
18
19
20 (out) DTR
21
22
25
The power in pin, pin 12, can be 9-30V DC.
30
Pin 1
Pin 14
EIA-232 EIA-422
Shield Shield
TxD
RxD
RTS
CTS
DSR
GND GND
DCD
Power in Power in
CTS-
TxD+
TxD-
RTS+
RTS-
RxD+
RxD-
CTS+
Terminal Server User Guide
Pin 13
Pin 25
EIA-485
Full Duplex
Shield
GND
Power in
TxD+
TxD-
RxD+
RxD-
EIA-485
Half Duplex
Shield
GND
Power in
DATA+
DATA-