210-065 · Question #162
Which kind of cable is used to daisy chain one PrecisionHD camera to another?
The correct answer is D. VISCA control cable. PrecisionHD cameras use a VISCA control cable to daisy chain multiple units together, allowing a single controller to manage camera movement across the chain.
Question
Which kind of cable is used to daisy chain one PrecisionHD camera to another?
Options
- AHDMI cable
- Bstandard Ethernet cable
- CDB9 to RJ45 cable
- DVISCA control cable
How the community answered
(34 responses)- A3% (1)
- B6% (2)
- C3% (1)
- D88% (30)
Why each option
PrecisionHD cameras use a VISCA control cable to daisy chain multiple units together, allowing a single controller to manage camera movement across the chain.
An HDMI cable carries audio and video signals but does not provide the serial control signaling required to daisy chain cameras for PTZ control.
A standard Ethernet cable is used for IP network connectivity or PoE power, not for VISCA-based camera control daisy chaining.
A DB9 to RJ45 adapter cable is a serial adapter used in some legacy RS-232 connections and is not the standard interface for linking PrecisionHD cameras together.
The VISCA (Video System Control Architecture) protocol is the serial control interface used by Cisco PrecisionHD cameras. A VISCA control cable connects the VISCA OUT port of one camera to the VISCA IN port of the next, enabling daisy-chaining so that pan, tilt, and zoom commands from a codec can be addressed to each camera individually in the chain.
Concept tested: VISCA protocol for daisy chaining PrecisionHD cameras
Source: https://www.cisco.com/c/en/us/td/docs/telepresence/endpoint/camera/precisionhd/user_guide/precisionhd_camera_user_guide.html
Topics
Community Discussion
No community discussion yet for this question.