Remote Technologies RPC-320 - Manual (Page 19)

SERIAL PORTS SECTION 4
Page 4-5 RPC -320
5 RXD In
6 CTS Out
9 Ground
10 + 5
*RTS input not in COM0.
A seria l cable is ma de by simp ly taking a 10 pin fe male
IDC connector and crim ping a 9 wir e ribbon c able to it.