B&B Electronics 232BRC - Manual - Manual (Page 12)

232BRC-0812 Manual
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91 792444 – Fax +353 91 792445
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Figure 2.1. DTE/DCE Port Diagrams
Port A Connections
Port A of the 232BRC is a 9 pin, female D-sub connector
configured as a DCE. This provides direct connection to an IBM PC
compatible or other DTE device. If it is necessary to connect Port A
to a modem or other device configured as a DCE, a null modem
adapter or cable is needed.
See Appendix A for a complete set of connection tables to the
232BRC ports.
Port B Connections
Port B of the 232BRC is a 9 pin male D-sub connector configured
as a DTE. This provides direct connection to a modem or other DCE
device. If it is necessary to connect Port B to a PC or other device
configured as a DTE, a null modem adapter or cable is needed.
See Appendix A for a complete set of connection tables to the
232BRC ports.
Power Connections
Power to the 232BRC is supplied through the 2.5mm Phono jack
on the side of the unit (Tip Positive). The 232BRC has an integrated
regulator, allowing it to operate on any supply voltage between +12 to
+17 VDC. The 232BRC will draw 60 mA max.
25 Pin DTE
2 (TD)
4 (RTS)
3 (RD)
5 (CTS)
20 (DTR)
6 (DSR)
8 (DCD)
7 (GND)
9 Pin DTE
3 (TD)
7 (RTS)
2 (RD)
8 (CTS)
4 (DTR)
6 (DSR)
1 (DCD)
5 (GND)
25 Pin DCE
2 (TD)
4 (RTS)
3 (RD)
5 (CTS)
20 (DTR)
6 (DSR)
8 (DCD)
7 (GND)
9 Pin DCE
3 (TD)
7 (RTS)
2 (RD)
8 (CTS)
4 (DTR)
6 (DSR)
1 (DCD)
5 (GND)
T
T
T
T
T
T
T
T
T
T T
T
T
T
R
R
R
R
R
R
R
R
R
R
R R
R
R
T = RS-232 Transmitter R = RS-232 Receiver