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1. Outline of RS-232C interface
This interface is for enabling the basic functions of the VTR to be operated using a personal computer.
The D-SUB 9P connector is used to connect the VTR with the personal computer.
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2. Hardware specifications
D-DUB 9P, female
Straight cable
■ D-DUB 9-pin connector specifications
Connector:
Compatible cable:
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D-SUB 9P input signals
Pin No. Abbreviation Circuit name Details
CD (DCD)1
2
3
4
5
6
7
8
9
Carrier detection PC receives this signal.
RD (RXD) Received data PC receives data.
SD (TXD) Transmitted data PC sends data.
ER (DTR) Data terminal ready PC sends this signal.
SG (--) Signal ground Signal ground
DR (DSR) Data set ready PC receives this signal.
RS (RTS) Request to send PC sends this signal.
CS (CTS) Clear to send PC receives this signal.
CI (RI) Ring indicator PC receives this signal.
PC VTR
Pin No.
1
2
3
4
5
6
7
8
9
Pin No.
1
2
3
4
5
6
7
8
9
L: ground
Details
Data output
Data input
OP (ready output)
GND
Ready output (OP)
L: ground
(short)
RS-232C Interface