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Cisco TelePresence PrecisionHD Camera PrecisionHD Camera User guide
D14640.09 PrecisionHD 1080p-720p Camera User Guide, June 2012.
© 2010-2012 Cisco Systems, Inc. All rights reserved.
www.cisco.com
The VISCA™/RS–232 control protocol, cont...
Network and interface commands
Push messages
Messages sent from camera to controller.
Command set Command
packet
Comments
IF_Clear 8x 01 00 01 Clear command buer. Stop any current
operation in progress.
Address_Set 8x 30 0p p = address for this device. If x=8
(broadcast), increase p with 1 before
sending to chain.
Command_Cancel * 8x 2p p = Socket ID. PrecisionHD 1080p 12x does
not support multiple sockets. Commands will
always run to completion. Don’t use it.
Command set Command packet Reply and comments
Network_Change y0 38 This indicates that cameras have been
added to or removed from the chain.
It is recommended to wait 9 seconds after
receiving this message before doing a full
recongure.
IR_Push y0 07 7d 02 gg hh If IR mode is on, IR codes received by the
camera will be sent to the controller.
gg = IR ID
hh = keycode
* Do not apply to PrecisionHD 4x/4xS2 cameras
NOTE: Some VISCA™ commands do not apply to the PrecisionHD 1080p4x/4xS2 cameras.
Command Command Packet Comments
Power_On 8x 01 04 00 02 Power control. This command
stores the zoom and focus value
and reset these motors.
Used for PrecisionHD 720p if the
camera was on for a long time.
Puts the PrecisionHD 1080p
camera in standby position.
Power_O 8x 01 04 00 03
Video_Format 8x 01 35 0p 0q 0r
Selects video format.
p = reserved
q = video mode. See the video
format table:
Video mode
selection.
r = Used in PrecisionHD 720p
camera. Can be recycled.
WB_Auto 8x 01 04 35 00 WB: White Balance
WB_Table_Manual 8x 01 04 35 06
WB_Table_Direct 8x 01 04 75 0p 0q 0r
0s
Used if WBmode = Table manual
pqrs = wb table.
AE_Auto 8x 01 04 39 00 AE: Automatic Exposure.
AE_Manual 8x 01 04 39 03
Iris_Direct 8x 01 04 4B 0p 0q 0r
0s
Used if AE mode = Manual. pqrs:
Iris position, range 0..50
Gain_Direct 8x 01 04 4c 0p 0q 0r
0s
Used if AE mode = Manual. pqrs:
Gain position, values:12-21dB.
Backlight_On 8x 01 04 33 02 BacklightCompensation mode
Backlight_O 8x 01 04 33 03
Camera commands
Contents
Appendices
Introduction
The physical interface
Connecting the camera
Video output formats
Daisy chaning
Appendices