Panasonic KX-T336 System Reference Manual page 104

1) Pin Configuration ("PROG", "SMDR")
Circuit Type
Signal Name
t-r EIA Ccl-i7
1 FG
2 TXD
3 RXD
4 RTS
5 CTS
6 DSR
7 7 SG SG
8 8 DCD DCD
20 DTR
/
Frame Ground AA
Transmitted
BA
Data
. .
Received Data BB
Request To CA
Send
101
103
104
105
Clear To Send CB 106
Data Set Ready CC 107
Signal Ground AB
Data Carrier CF
Detect
Data Terminal CD
heady
102
109
108.2
. EIA (RS-232C) SIGNALS:
Frame Ground (FG);
Connects to the unit frame and the earth ground
conductor of the AC power cord.
Transmitted Data (TXD);.
l l l l l l l l l
(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);.
l l l l l l l l l l l
(input)
Conveys signals fmm the printer.
--6%
Request To Send (RTS);.
l l l l l l l l
*(output)
This lead is held ON whenever DSR is ON.
Clear To Send (CTS)?
l l l l l l l l l l l
(input)
The ON condition of circuit CTS indicates that the
printer is ready to receive data from the unit. The
unit does not attempt to transfer data or receive
data when circuit CTS is OFF.
Data Set Ready (DSR);.
l l l l l l l l l l
(input)
The ON condition of circuit DSR indicates the
printer is ready. Circuit DSR ON does not
indicate that communication has tjeen
established with the printer.
Signal Ground (SG);
Connects to the DC ground of the unit for all
interface signal.
-Data Terminal-Ready.@TR)-
l l l l l l
*(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)*
l l l l l l l l
(input)
The ON
condition is an indication to data terminal
(DTE) that the carrier signal is being received.
2-D-4