12 RS-232C INTERFACE

 

12-2

RS-232C specifications

9PIN D-Sub

 

 

 

1 2 3 4 5

 

 

6

9

 

Pin NO.

Signals

Operations

Direction of

ASCII code table

 

 

 

 

 

 

 

Use this table to express the values or alphabets on the

 

RS-232C interface.

 

 

 

 

 

 

 

0

1 2

3

4

5

6

7

8

9

A B C D E

F

0

SP

0

 

P

 

p

 

 

 

 

1

 

1

A

Q

a

q

 

 

 

 

2

 

2

B

R

b

r

 

 

 

 

3

 

3

C

S

c

s

 

 

 

 

4

 

4

D

T

d

t

 

 

 

 

5

 

5

E

U

e

u

 

 

 

 

12 RS-232C INTERFACE

 

 

 

 

 

12-3 RS-232C commands

 

 

 

 

An optional RS-232C interface can be installed in this unit

Preparation

 

 

 

and connected to a personal computer. Data transmitted and

To control the

VCR via the RS-232C interface, set the No.

received via the RS-232C interface enables the PC to control

050 <REMOTE SELECT> menu switch to “RS232C”, “IEEE

the VCR and gather status and operating information.

1394 + RS232C”, “JVC BUS + RS232C” or “JVC BUS +

 

 

VCR operation commands

 

RS232C + 1394”.

 

 

 

 

 

 

 

These commands are used to operate the VCR. When the command is

(e.g.)

TXD

3Ah

received correctly, the VCR returns ACK (OAh) and enters the mode

corresponding to the command.

 

 

Playback

RXD

0Ah

 

 

 

 

 

Commands

Description

 

 

 

 

 

 

 

signals

2

RXD

Receive data

VTR p PC

3

TXD

Transmit data

VTR [ PC

4

DTR

Data terminal ready

VTR [ PC

5

GND

Signal ground

 

6

DSR

Data set ready

VTR p PC

Note: PC means a controller such as a personal computer.

Mode

: Non-synchronous

 

Character length :

8 bits

 

Parity check

:

None

 

Start bit

:

1

 

Stop bit

:

1

 

Data rate

:

9600 bps

 

Bit structure

 

 

 

6

6

F

V

f

v

77 G W g w

8

8

H

X

h

x

9

9

I

Y

i

y

A

 

J

Z

j

z

B

 

K

 

k

 

C

 

L

 

l

 

D

 

M

 

m

 

E

 

N

 

n

 

F

 

O

 

o

 

3A

PLAY

Play

3B

FWD X2

2x play

3C

FWD X0.2

0.2x play

3D

F-STILL

Pause

3E

FWD X10

10x play

3F

STOP

Stop

4A

REV X1

Reverse play

4B

REV X2

2x reverse play

4C

REV X0.2

0.2x reverse play

4D

R-STILL

Pause

4E

REV X10

10x reverse play

4F

STILL

Pause

58

GOTO IN

Cues up the point specified with the

 

 

When the tape is cued, COMPLETE

 

 

cannot be found, NOT TARGET (05)

IN ENTRY (50) and IN DATA PRESET (E3).

(01)is returned. When the specified point is returned.

 

 

 

D0

D1

D2

D3

D4

D5

D6

D7

 

 

 

 

 

 

 

 

 

 

 

 

Start bit

 

 

 

 

 

 

Stop bit

59

GOTO OUT

Cues up the point specified with the OUT ENTRY (51) and OUT DATA PRESET (E4).

 

 

When the tape is cued, COMPLETE (01) is returned. When the specified point

 

 

cannot be found, NOT TARGET (05) is returned.

5B

MEMORY SEARCH

Cues up the point specified with the MEMORY (5A). When the tape is cued,

 

 

COMPLETE (01) is returned. When the specified point cannot be found, NOT

 

 

TARGET (05) is returned.

7B

OPERATE ON

Operating mode ON

7C

OPERATE OFF

Operating mode OFF

A0

STANDBY ON

Standby ON

A1

STANDBY OFF

Standby OFF

A2

PREROLL

Preroll

A3

EJECT

Eject cassette

AB

FF

Fast-forward. When this command is transmitted during playback, playback speed

 

 

changes to 10x.

AC

REW

Rewind. When this command is transmitted during playback, reverse playback starts

 

 

at 10x.

AD

F-FIELD STEP

Advances one frame. This command should be transmitted in the Play-Pause mode.

AE

R-FIELD STEP

Reverses one frame. This command should be transmitted in the Play-Pause mode.

B2

CUE UP WITH DATA

Use this command to cue up a specified point on the tape. When the tape is cued,

 

 

COMPLETION is returned and the Pause mode is engaged.

 

 

To specify the cue point, transmit the time data (hour: minute: second: frame, a total

 

 

of 8 bytes with 2 bytes for each) following this command.

B3

CUE UP AND PLAY

Use this command to cue up a specified point on the tape.

 

WITH DATA

When the tape is cued, COMPLETE is returned and the Play mode is engaged.

 

 

To specify the cue point, transmit the time data (hour: minute: second: frame, a total

 

 

of 8 bytes with 2 bytes for each) following this command.

38

39

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JVC BR-DV600UA, BR-DV600EA manual 12 RS-232C Interface, 12-2 RS-232C specifications, 12-3 RS-232C commands, 9PIN D-Sub

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