B&B Electronics Buffered Smart Switch Pins 1, 4, & 6 looped back internally on the 232BSS4

1	(DCD) *	<----------		8
2	(RD)	<----------		3
3	(TD)	----------	>	2
4	(DTR) *	----------	>	20
5	(GND)	<--------	>	7
6	(DSR) *	<----------		6
7	(RTS)	----------	>	4
8	(CTS)	<----------		5

•- Pins 1, 4, & 6 looped back internally on the 232BSS4

Chart B.8. Ports A - D (DTE) to DCE (Modem) DB9 Connector

232BSS4		Signal		DCE (Modem)
Ports A - D (DTE)				Serial Port
DB9 Connector		Direction		DB9 Connector
1	(DCD) *	<----------		1
2	(RD)	<----------		2
3	(TD)	----------	>	3
4	(DTR) *	----------	>	4
5	(GND)	<--------	>	5
6	(DSR) *	<----------		6
7	(RTS)	----------	>	7
8	(CTS)	<----------		8

* - Pins 1, 4, & 6 looped back internally on the 232BSS4

Documentation Number 232BSS42907 Manual Appendix B: Cable Charts B-5

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 Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445