Rs-232C Interface - Panasonic AJ-D850 Operating Instructions Manual

RS-232C interface

1. Introduction
(1) The VTR can be operated by commands when the RS-232C interface is used.
(See command table on pages 96 – 98.)
(2) Conditions for acknowledging commands from RS-232C interface
The front panel REMOTE/LOCAL switch must be at REMOTE.
The setup menu item No. 204 "RS232C SEL" must be ON.
If the above conditions are not met, [ACK] + [STX]ER001[EXT] is returned to the external unit.
Whether the [ACK] code is returned depends on the setting which has been selected for setup menu item No. 209
"RETURN ACK".
2. Hardware specifications
External interface specifications
1) Connector specifications
Connector: D-SUB 25-pin (crossover cable supported)
Pin No. Signal
1 FG
2 RXD
3 TXD
4 CTS
5 RTS
6 DTR
7 SG
20 DSR
2) Example of connection with controller (PC)
Using crossover cable with D-SUB 25-pin
connectors
PC side
(D-SUB 25-pin
connector)
FG 1
TXD 2
RXD 3
RTS 4
CTS 5
DSR 6
SG 7
DTR 20
Circuit name
Protective ground
Received data
Transmitted data
Clear to send
Request to send
Data terminal ready
Signal ground
Data set ready
VTR side
1 FG
2 RXD
3 TXD
4 CTS
5 RTS
6 DTR
7 SG
20 DSR
– 93 –
Description
Frame ground
Data is sent to PC.
Data is received from PC.
Shorted with pin 5.
Shorted with pin 4.
No processing
Signal ground
+ voltage output after communication enable status
Using crossover cable with D-SUB 9-pin and
25-pin connectors
PC side
(D-SUB 9-pin
connector)
RXD 2
TXD 3
DTR 4
SG 5
DSR 6
RTS 7
CTS 8
VTR side
1 FG
2 RXD
3 TXD
4 CTS
5 RTS
6 DTR
7 SG
20 DSR