B&B Electronics ESR901 User Manual
Page 81
RS-232 Connections
Manual Documentation Number: ESR90x-0508m
Appendix A
71
B&B Electronics Mfg Co Inc – 707 Dayton Rd - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com
B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com
ESR901 Terminal Block Pin-out in RS-232 Mode
GN
D
CT
S/T
X-
TX
/TX
+
RX
/R
X+
RT
S/R
X-
1
2
3
4
5
RS-232
Signal Name
DTE RS-232 Terminal
Signal Ground
---
GND
1
Clear To Send
In
CTS
2
Transmit Data
Out
TXD
3
Receive Data
In
RXD
4
Request To Send
Out
RTS
5
Figure 50. ESR901 Terminal Block Pin-out in RS-232 Mode