Rs-232C Signals; Frame Ground (Fg); Received Data (Rxd)— Input; Request To Send (Rts)— Output - Panasonic KX-TVP200 Installation Manual

Standard IBM 25-Pin Connection
Circuit Type Signal
(RS-232C) Name
AA FG
BA TXD
BB RXD
AB SG
CD DTR
Table 2-6 Pin Configuration of the RS-232C
Pin
Number
1
2
3
4
6
7
8
20

2.8.3 RS-232C Signals

Frame Ground (FG)

Connects an external ground to the unit frame, usually the earth pin of the AC power cord.
Transmitted Data (TXD)— output
Conveys signals from the unit to the terminal/printer. A "mark" condition is held unless data or
BREAK signals are being transmitted.
Received Data (RXD)— input
Conveys signals from the terminal/printer to the unit.
Request To Send (RTS)— output
This lead is held on whenever DSR is on.

Signal Ground (SG)

Connects to the DC ground of the unit for all interface signals.
®
Pin No.
1
2
3
7
20
Signal Name
FG Frame Ground
TXD Transmitted Data
RXD Received Data
RTS Request To Send
DSR Data Set Ready
SG Signal Ground
DCD Data Carrier Detect
DTR Data Terminal Ready
2.8 TERMINAL CONNECTION
Signal
Pin No.
Name
1 FG
3 RXD
2 TXD
20 DTR
7 SG
5 CTS
6 DSR
8 DCD
Circuit Type
RS-232C
AA
BA
BB
CA
CC
AB
CF
CD
Circuit Type
(RS-232C)
AA
BB
BA
CD
AB
CB
CC
CF
CCITT
101
103
104
105
107
102
109
108.2
Installation Manual 47