Panasonic KX-TD500 Installation Manual page 162

Installation
Connection Chart 2 (25-pin Connector)
RS-232C port (PROG/SMDR) on the Basic Shelf
Circuit Type
(Serial Interface)
AA
BA
BB
CA
CB
CC
AB
CF
CD
162
Signal Name Pin No.
FG
1
SD (TXD)
2
RD (RXD)
3
RTS
4
(No Connection)
CTS 5
DR (DSR)
6
SG
7
DCD
8
ER (DTR)
20
RS-232C port on the PC/Printer (25-pin)
Pin No. Signal Name
(Serial Interface)
FG
1
TXD
2
RXD
3
RTS
4
CTS
5
20 DTR
SG
7
DSR
6
DCD
8
Installation Manual
Circuit Type
AA
BA
BB
CA
CB
CD
AB
CC
CF