Panasonic KX-TD500 System Reference Manual page 147

3.01 Connection to the Printer
Serial Printer
• Connect the RS-232C connector of the printer to "SMDR".
• Cables must be shielded and the maximum cabling distance is 6.5 feet.
• Connection Chart
RS-232C (SMDR) port on the Basic Shelf
Circuit Type (EIA) Single Name
AA
BA
BB
CC
AB
CD
Pin No.
FG 1
2
TXD
RXD 3
DSR 6
SG 7
DTR 20
Serial Interface
(RS-232C)
RS-232C port on the printer
Pin No.
1
3
2
20
7
5
6
8
2-D-5
M
AR
AL
NE
F LI
OF
N
RU
EM
ST
ID SY
BR
R HY
PE
L SU
DI GI TA
Single Name Circuit Type (EIA)
FG AA
RXD BB
TXD BA
DTR CD
SG AB
CTS CB
DSR CC
DCD CF