Multi-port Serial Adapter

BlueStorm/LP Installation Guide, Connect Tech Inc.
10 Revision 0.05
Connectors/Pinouts
Table 1: DB-25 Female Pinouts (2 port connector)
Pin
No.
Port
No.
RS-232
Signal
Signal
Direction
RS-422/485
Signal
Signal
Direction
1 2 SG signal gnd. SR signal ref.
2 1 TXD output TXD- output
3 1 RXD input TXD+ output
4 1 RTS output RTS- output
5 1 CTS input RTS+ output
6 1 DSR input CTS- input
7 1 SG signal gnd. SR signal ref.
8 1 DCD input RXD+ input
9 2 TXD output TXD- output
10 2 RXD input TXD+ output
11 2 RTS output RTS- output
12 2 CTS input RTS+ output
13 2 DSR input CTS- input
14 NC no connect NC no connect
15 NC no connect NC no connect
16 NC no connect NC no connect
17 NC no connect NC no connect
18 NC no connect NC no connect
19 2 DTR output RXD- input
20 1 DTR output RXD- input
21 NC no connect NC no connect
22 1 RI input CTS+ input
23 2 RI input CTS+ input
24 NC no connect NC no connect
25 2 DCD input RXD+ input
Cable CB002 sends the signals to two DB-9 male connectors. See Table 4 for pinout details.
NOTE: This is not the pinout of DB-25 cable CB007. See Table 4 for pinout details.