Personal Computer/Printer - Panasonic KX-TD500 Installation Manual

2.8.4

Personal Computer/Printer

Pin Configuration (PROG/SMDR)
Pin No. Signal Name
1 FG
2 SD (TXD)
3
RD (RXD)
RTS
4
(No Connection)
CTS
5
(No Connection)
6 DR (DSR)
7 SG
8 DCD
20 ER (DTR)
Serial Interface (RS-232C) signals
Frame Ground (FG);
Connects to the unit frame and the earth
ground conductor of the AC power cord.
Transmitted Data (TXD); ...............(output)
Conveys signals from the unit to the printer.
A "Mark" condition is held unless data or
BREAK signals are being transmitted.
Received Data (RXD); .......................(input)
Conveys signals from the printer.
Request To Send (RTS); ..................(output)
This signal is not used.
Clear To Send (CTS); ........................(input)
This signal is not used.
Data Set Ready (DSR);......................(input)
The ON condition of circuit DSR indicates
the printer is ready. Circuit DSR ON does
not indicate that communication has been
established with the printer.
Circuit Type (EIA)
Frame Ground
Transmitted Data
Received Data
Request To Send
Clear To Send
Data Set Ready
Signal Ground
Data Carrier Detect
Data Terminal Ready
AA
BA
BB
CA
CB
CC
AB
CF
CD
Signal Ground (SG);
Connects to the DC ground of the unit for all
interface signal.
Data Terminal Ready (DTR) ..........(output)
This signal line is turned ON by the unit to
indicate that it is ON LINE. Circuit DTR
ON does not indicate that communication
has been established with the printer. It is
switched OFF when the unit is OFF LINE.
Data Carrier Detect (DCD)...............(input)
The ON condition is an indication to data
terminal (DTE) that the carrier signal is
being received.
Installation 2-67