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RS-232C Interface
1. Outline of RS-232C interface
This interface is for enabling the basic functions of the VTR to be operated using a personal computer.
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The D-SUB 9P connector is used to connect the VTR with the personal computer.
2. Hardware specifications
■ D-DUB 9-pin connector specifications
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Connector:
D-DUB 9P, female
•
Compatible cable:
Straight cable
D-SUB 9P input signals
Pin No.
Abbreviation
1
CD (DCD)
2
RD (RXD)
3
SD (TXD)
ER (DTR)
4
SG (--)
5
DR (DSR)
6
RS (RTS)
7
8
CS (CTS)
CI (RI)
9
Pin No.
1
2
3
4
PC
5
6
7
8
9
Circuit name
Carrier detection
PC receives this signal.
Received data
PC receives data.
Transmitted data
PC sends data.
Data terminal ready
PC sends this signal.
Signal ground
Signal ground
Data set ready
PC receives this signal.
Request to send
PC sends this signal.
Clear to send
PC receives this signal.
Ring indicator
PC receives this signal.
Pin No.
Details
1
L: ground
Data output
2
Data input
3
4
OP (ready output)
5
GND
6
Ready output (OP)
7
(short)
8
L: ground
9
Details
VTR
23
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