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RS-232C interface
The VTR can be operated by commands when the RS-232C interface is used.
(See command table on page 60 – 62.)
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[ETX] 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”.
1. Introduction
(1)
(2)
2. Hardware specifications
External interface specifications
1) Connector specifications
Pin No. Signal Circuit name Description
1 FG Protective ground Frame ground
2 TXD Transmitted data Data is received from PC.
3 RXD Received data Data is sent to PC.
4 RTS Request to send Shorted with pin 5.
5 CTS Clear to send Shorted with pin 4.
6 DSR Data set ready + voltage output after communication enable status
7 SG Signal ground Signal ground
20 DTR Data terminal ready No processing
2) Example of connection with controller (PC)
■ Using straight cable with D-SUB 25-pin connectors
PC side
(D-SUB 25-pin
connector)
FG
TXD
RXD
RTS
CTS
DSR
SG
DTR
1
2
3
4
5
6
7
20
VTR side
FG
TXD
RXD
RTS
CTS
DSR
SG
DTR
1
2
3
4
5
6
7
20
PC side
(D-SUB 9-pin
connector)
RXD
TXD
DTR
SG
DSR
RTS
CTS
2
3
4
5
6
7
8
FG
TXD
RXD
RTS
CTS
DSR
SG
DTR
1
2
3
4
5
6
7
20
VTR side
■ Using straight cable with D-SUB 9-pin connectors
and 25-pin connectors
Connector: D-SUB 25-pin (straight cable supported)