14
MICRO ASYNC TO SYNC CONVERTER
Appendix A: Asynchronous Port
Connections (Configured as DCE)
Pin
Name
Description
1
FG
Frame Ground; connected straight through to synchronous
port
2
TXD
Transmit Data (to Converter); data input from asynchronous
port; input to the Converter’s power supply
3
RXD
Receive Data (from Converter); data output to asynchronous
port
4
RTS
Request to Send (to Converter); input to the Converter’s
power supply
5
CTS
Clear to Send (from the Converter); connected straight
through to synchronous port
6
DSR
Data Set Ready (from the Converter); connected straight
through to synchronous port
7
SG
Signal Ground; connected straight through to synchronous
port
8
CD
Carrier Detect (from Converter); connected straight through to
synchronous port
9
+DCV
Connected straight through to synchronous port
10
-DCV
Connected straight through to synchronous port
20
DTR
Data Terminal Ready (to Converter); input to Converter
power supply
22
RI
Ring Indicator (from Converter); connected straight through to
synchronous port
