Others, Rs-232c interface, Rs-232c specifications – JVC D-ILA DLA-HD350 User Manual

Page 50: Command format, External control)

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6

Others

50

RS-232C Interface

Control of this unit via a computer is possible by connecting the computer to this unit with a RS-232C

cross cable (D-Sub 9 pin).









●

PC refers to the controller such as a personal computer.

D6 D7

D4 D5

D2 D3

D0 D1

Command Format

The command between this unit and the computer consists of “Header”, “Unit ID”, “Command”, “Data” and “End”.

●

Header (1 byte), Unit ID (2 bytes), Command (2 bytes), Data (n bytes), End (1 byte)

■

Header

This binary code indicates the start of communication.

Binary code

Type

Description

1

Operating command

PC→This unit

F

Reference command

PC→This unit

0

Response command

This unit→PC

06

ACK

This unit→PC

(When the command is accepted without error, it returns to

PC)

■

Unit ID

This code specifies the unit. The binary code is fixed at “8901”.

RS-232C Specifications

Pin No.

Signal

Function

Signal Direction



RxD

Receive data

PC→This unit



TxD

Transmit data

This unit→PC

5

GND

Signal ground

-

1,,6 - 9

N/C

-

-

Mode

Non-synchronous

Character Length

8 bit

Parity

None

Start Bit

1

Stop Bit

1

Data rate

1900 bps

Data format

Binary

T

his unit

Start Bit

Stop Bit

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