InterTest CN1, User Manual

Page: 22 / 39

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APPENDIX: UART COMMAND
Overview:
For IR PTZ camera application, supports VISCA protocol for zoom position data
output so that connected PT controller can manipulate smart IR control based on received position
information; there are two modes supporting zoom position output:
Zoom Position Info.
Protocol interface: UART (pin3 & pin4)
Inquiry mode
Inquiry Command
Command
Packet
Inquiry Packet Comments
CAM_ZoomPosInq 8x 09 04 47 FF
y0 50 0p 0q 0r 0s
FF pqrs: Zoom
Position
Continuous mode
Command Set Command Command Packet Comments
CAM_Continuous
ZoomPosReply
On 8x 01 04 69 02 FF ZoomPosition data
Continuous Output
On/Off
Off 8x 01 04 69 03 FF
{Reply}
y0 07 04 69 0p 0p 0q 0q
0q 0q FF qqqq: Zoom
Position
Zoom Ratio and Zoom Position Table
Zoom
Ratio Optical Zoom Position
Data Zoom
Ratio Optical Zoom Position
Data
x1 0000 x18 39A0
x2 166F x19 3A49
x3 1FF0 x20 3AE8
x4 257D x21 3B7F
x5 2940 x22 3C0C
x6 2C02 x23 3C8E
x7 2E2B x24 3D06
x8 2FEE x25 3D73
x9 316A x26 3DD4
x10 32B2 x27 3E2C
x11 33D4 x28 3E7C
x12 34D9 x29 3EC2
x13 35C8 x30 3F00