DVR-4 4-Channel digital Recorder
26
PTC3:
(seven byte)
Byte1 Byte2
Byte3
Byt4
Byte5
Byte6
Byte7
0xFF Addr
Var1
Var2
Check
sum
Var1 Var2 function
0x00 0x08
Ch1/up
0x00
0x10
Ch2/down
0x00
0x04
Ch3/left
0x00
0x02
Ch4/right
0x04
0x00
Chall/enter
0x00
0x40
Record
0x00
0x20
Play
0x02
0x00
Menu
0x00
0x80
Q
0x01 0x00 Display/-
Byte 5 and byte 6 are ransom value from 0x00 to 0xff.
Byte 7 = mod [(byte2 + byte3 + byte4 + byte5 + byte6)/100]
Note:
This protocol is the same as PELCO-D, which is used to control speeddome. So, if you use
PELCO-D to control speeddome by a keyboard, you can also use the keyboard to control the DVR
through this protocol, we can use different address to distinguish the DVR and the speeddome.
PTC4:
(eight byte)
Byte1 Byte2 Byte3 Byte4
Byte5
Byte6
Byte7 Byte8
0xa0 Addr 0x00 0x07 0x00
Var
0xAF Checksum
Byte8 = byte1 xor byte2 xor byte3 xor byte4 xor byte5 xor byte6 xor byte7
Var Function Var
Function
0x01 Ch1/up
0x0C
Schedule/9/preview
segment
0x02 Ch2/down
0x0D
Alarm/0/next
segment
0x03 Ch3/left
0x0E
Menu/first
segment
0x04 Ch4/right
0x0F
PTZ/last
segment
0x05 Chall/enter
0x10
Iris/1
0x06 record
0x11
Focus/2
0x07 Play
0x12
Zoom/3
0x08 Pause
0x13
Speed/4
0x09 Reward
0x14
Stop/5
0x0A
Forward 0x15
Search/6
0x0B
Stop 0x16
Quality/7/+
