DIGITAL VIDEO RECORDER

Connection with RS-485

If you control cameras, remote control is allowed through connection with RS-485 (up to 1.2km).

A. Communication method

●Data transmission method: Start-Stop Asynchronized Serial Interface

●Protocol: 8 bit Data, 1 Stop bit, None Parity

●Transmission speed: 4800, 9600, 19200, 38400, 115200 bps

B. RS-485 terminal and Pin specifications

DATA -

DATA +

C. Data Format (Samsung Protocol)

 

 

 

 

 

 

 

9 Byte Fixed

(

) : Byte numbers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Start Code (A0H)

 

Start Addr.

 

Target Addr.

 

Command

Check Sum

(1)

 

 

(1)

 

 

(1)

 

(5)

(1)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Data Byte

 

 

Type

 

 

Contents

Remarks

 

 

 

 

 

 

 

 

 

 

 

 

 

Byte 1

 

Start Code

 

 

0xA0

Start of Data Packet

 

 

 

 

 

 

 

 

 

 

Byte 2

 

Sender Addr.

 

 

Transmission Address

Source Range (0x00 ~ 0xFF)

 

 

 

 

 

 

 

 

 

 

Byte 3

 

Target Addr.

 

 

Reception Address

Destination Range (0x00 ~ 0xFF)

 

 

 

 

 

 

 

 

 

 

Byte 4

 

 

 

 

Only Image Recorder Command

0x0A

 

 

 

 

 

 

 

 

 

 

 

Byte 5

 

 

 

 

 

Key Function

Range (0x01 ~ 0xFF)

 

 

 

 

 

 

 

 

 

 

Byte 6

 

Command

 

 

0xFF

0xFF

 

 

 

 

 

 

 

 

 

 

 

Byte 7

 

 

 

 

 

0xFF

0xFF

 

 

 

 

 

 

 

 

 

 

 

Byte 8

 

 

 

 

 

0xFF

0xFF

 

 

 

 

 

 

 

 

 

 

Byte 9

 

Check Sum

 

 

Lower byte of (0xFFFF - (values adding Byte 2 ~ Byte 8))

 

 

 

 

 

 

 

 

 

 

 

 

D. Code value by key

Function

Byte 1

Byte 2

Byte 3

Byte 4

Byte 5

Byte 6, 7, 8

Byte 9

Response

(Byte 5)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[SET COMMAND]

 

 

 

 

 

 

 

 

 

 

 

 

RECORD

0xA0

Src.Addr

Dest.Addr.

0x1A

0x0B

0xFF

Check Sum

Byte 5

 

 

 

 

 

 

 

 

 

REC LOCK

0xA0

Src.Addr

Dest.Addr.

0x1A

0x0A

0xFF

Check Sum

Byte 5

 

 

 

 

 

 

 

 

 

VCR

0xA0

Src.Addr

Dest.Addr.

0x1A

0x3D

0xFF

Check Sum

Byte 5

SEARCH

0xA0

Src.Addr

Dest.Addr.

0x1A

0x02

0xFF

Check Sum

Byte 5

MENU

0xA0

Src.Addr

Dest.Addr.

0x1A

0x01

0xFF

Check Sum

Byte 5

 

 

 

 

 

 

 

 

 

ENTER

0xA0

Src.Addr

Dest.Addr.

0x1A

0x35

0xFF

Check Sum

Byte 5

 

 

 

 

 

 

 

 

 

LEFT

0xA0

Src.Addr

Dest.Addr.

0x1A

0x06

0xFF

Check Sum

Byte 5

RIGHT

0xA0

Src.Addr

Dest.Addr.

0x1A

0x07

0xFF

Check Sum

Byte 5

STOP

0xA0

Src.Addr

Dest.Addr.

0x1A

0x08

0xFF

Check Sum

Byte 5

RIGHT

0xA0

Src.Addr

Dest.Addr.

0x1A

0x09

0xFF

Check Sum

Byte 5

UP

0xA0

Src.Addr

Dest.Addr.

0x1A

0x04

0xFF

Check Sum

Byte 5

DOWN

0xA0

Src.Addr

Dest.Addr.

0x1A

0x05

0xFF

Check Sum

Byte 5

 

 

 

 

 

 

 

 

 

EJECT

0xA0

Src.Addr

Dest.Addr.

0x1A

0x3E

0xFF

Check Sum

Byte 5

 

 

 

 

 

 

 

 

 

E.Others

●Above data format and transmission speed may be changed depending on future development conditions.

●PC operates as Master, and Target Set as Slave in transmission/reception of data.

●No status other than Set Key Function should be received. (Some delay can be happen due to communication speed).

2-5

2-6