RST600
INSTALLATION
&
USER
MANUAL
RS232 Specification
The RST600 is provided with an RS232 serial port for data connection. The 9-pin D-type (female)
socket is wired DCE for connection to a standard PC with a 1:1 cable.
Physical Connection
The pin-out of both connectors is described in the following table:
Pin
Signal
Direction
Description
1
DCD
RST
PC
Data Carrier Detect
2
RXD
RST
PC
Received Data
3
TXD
PC
RST
Transmitted Data
4
DTR
PC
RST
Date Terminal Ready
5
GND
Signal Ground (Common)
6
DSR
RST
PC
Data Set Ready (CTS and DCD)
7
RTS
PC
RST
Request to Send
8
CTS
PC
RST
Clear to Send
9
RI
RST
PC
Ring Indicate
RS232 Port Signal Support and Handshaking
The Data port supports full software XON/XOFF handshaking on data (AT commands bypass this as
usual for Hayes modems) or full hardware handshaking on RTS/CTS with DCD carrier indication.
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