B&B Electronics Asynchronous to Synchronous Converter 2010 - Manual (Page 11)

2010AS3297 Manual 9
B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350
PH (815) 433-5100 -- FAX (815) 434-7094
APPENDIX C: SYNCHRONOUS PORT
CONNECTIONS (CONFIGURED AS “DTE”)
Pin Name Description
1 FG Frame Ground; connected straight to asynchronous port
2 TXD Transmit Data (from 2010); data output to synchronous
port
3 RXD Receive Data (to 2010); data input from the synchronous
port; input to 2010 power supply
4 RTS Request to Send (from 2010); 4 bit delay from
asynchronous port (2010 waits 4 bits before dropping
RTS to the synchronous port; this facilitates use in a
polling environment)
5 CTS Clear to Send (to 2010); connected straight through to
asynchronous port
6 DSR Data Set Ready (to 2010); connected straight through to
asynchronous port
7 SG Signal Ground; connected straight through to
asynchronous port
8 CD Carrier Detect (to 2010); connected straight through to
asynchronous port
9 +DCV Connected straight through to asynchronous port
10 –DCV Connected straight through to asynchronous port
15 TXC Transmit clock (to 2010); used to synchronize data
conversion from 2010 to synchronous port
17 RXC Receive clock (to 2010); used to synchronize data
conversion from 2010 to synchronous port
20 DTR Data Terminal Ready (from 2010); input to 2010 power
supply
22 Rl Ring Indicator (to 2010); connected straight through to
asynchronous port