MODEL232BSS4 B&B Electronics, MODEL232BSS4 Datasheet - Page 32

• Manufacturer Part Number: MODEL232BSS4
• Description: Buffered Smart Switch
• Manufacturer: B&B Electronics

Appendix B: Cable Charts
operation. Handshaking pins are needed for hardware (RTS/CTS)
handshaking or if DTR is to be used to signal the Master port to
accept commands. See Appendix C for a block diagram of the
232BSS4.
Master Port Connections:
* - Pins 6, 8, & 20 looped back internally on the 232BSS4
* - Pins 6, 8, & 20 looped back internally on the 232BSS4
Documentation Number 232BSS41202 Manual
All charts give full pin outs. Only pins 2 & 3 are required for basic
DB25 Connector
Chart B.1. DTE (PC) DB25 Connector to Master Port
DB9 Connector
Chart B.2. DTE (PC) DB9 Connector to Master Port
Serial Port
Serial Port
DTE (PC)
DTE (PC)
20
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Direction
Direction
----------->
<-----------
----------->
<-----------
<-----------
<-----------
----------->
<-----------
<-----------
----------->
----------->
<-----------
----------->
<-----------
<--------->
<--------->
Signal
Signal
Appendix B: Cable Charts
Master Port (DCE)
Master Port (DCE)
DB25 Connector
DB25 Connector
232BSS4
232BSS4
2 (TD)
3 (RD)
4 (RTS)
5 (CTS)
6 (DSR) *
7 (GND)
8 (DCD) *
20 (DTR) *
8 (DCD) *
3 (RD)
2 (TD)
20 (DTR) *
7 (GND)
6 (DSR) *
4 (RTS)
5 (CTS)
B-1