Modem Db25 Connector; Db25 Male; Rj45 - Black Box Terminal Server User Manual

Modem DB25 Connector

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

DB25 Male

Terminal Server
DB25 (DTE)

RJ45

Terminal Server
10-pin
2
3
4
5
6
7
8
9
2 (TxD)
3 (RxD)
4 (RTS)
5 (CTS)
6 (DSR)
7 (GND)
8 (DCD)
20 (DTR)
RJ45
8-pi
n
(DCD) 1
(RTS) 2
(DSR) 3
(TxD) 4
(RxD) 5
(GND) 6
(CTS) 7
(DTR) 8
Modem DB25
(DCE)
2 (RxD)
3 (TxD)
4 (CTS)
5 (RTS)
6 (DSR)
7 (GND)
8 (DCD)
20 (DTR)
Modem DB25
(DCE)
8 (DCD)
4 (CTS)
6 (DSR)
2 (RxD)
3 (TxD)
7 (GND)
5 (RTS)
20 (DTR)
EIA-232 Cabling Diagrams
Installation 35