Panasonic AJ-D850P Benutzerhandbuch
RS-232C interface
– 92 –
1. Introduction
(1) The VTR can be operated by commands when the RS-232C interface is used.
(See command table on pages 95 – 97.)
(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.
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”.
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
Circuit name
Description
1
FG
Protective ground
Frame ground
2
RXD
Received data
Data is sent to PC.
3
TXD
Transmitted data
Data is received from PC.
4
CTS
Clear to send
Shorted with pin 5.
5
RTS
Request to send
Shorted with pin 4.
6
DTR
Data terminal ready
No processing
7
SG
Signal ground
Signal ground
20
DSR
Data set ready
+ voltage output after communication enable status
2) Example of connection with controller (PC)
■
Using crossover cable with D-SUB 25-pin
■
Using crossover cable with D-SUB 9-pin and
connectors
25-pin connectors
PC side
(D-SUB 25-pin
connector)
(D-SUB 25-pin
connector)
FG
TXD
RXD
RTS
CTS
DSR
SG
DTR
TXD
RXD
RTS
CTS
DSR
SG
DTR
1
2
3
4
5
6
7
2
3
4
5
6
7
20
VTR side
FG
RXD
TXD
CTS
RTS
DTR
SG
DSR
RXD
TXD
CTS
RTS
DTR
SG
DSR
1
2
3
4
5
6
7
2
3
4
5
6
7
20
PC side
(D-SUB 9-pin
connector)
(D-SUB 9-pin
connector)
RXD
TXD
DTR
SG
DSR
RTS
CTS
TXD
DTR
SG
DSR
RTS
CTS
2
3
4
5
6
7
8
3
4
5
6
7
8
FG
RXD
TXD
CTS
RTS
DTR
SG
DSR
RXD
TXD
CTS
RTS
DTR
SG
DSR
1
2
3
4
5
6
7
2
3
4
5
6
7
20
VTR side