210-065 · Question #9
When connecting to a pan-tilt-zoom camera to a C-Series codec, what type of cable must be used for camera control?
The correct answer is D. a VISCA cable (DB9-to-RJ45). PTZ camera control from a C-Series codec requires a VISCA cable with a DB9 connector on one end and an RJ45 connector on the other, not a standard Ethernet cable.
Question
When connecting to a pan-tilt-zoom camera to a C-Series codec, what type of cable must be used for camera control?
Options
- Aan Ethernet crossover cable (RJ45-to-RJ45)
- Ban Ethernet cable (RJ45-to-RJ45)
- Ca serial cable (DB25-to-DB9)
- Da VISCA cable (DB9-to-RJ45)
How the community answered
(25 responses)- B8% (2)
- C4% (1)
- D88% (22)
Why each option
PTZ camera control from a C-Series codec requires a VISCA cable with a DB9 connector on one end and an RJ45 connector on the other, not a standard Ethernet cable.
An Ethernet crossover cable carries IP traffic between two hosts and cannot transmit the serial VISCA control signals required for PTZ camera movement.
A standard Ethernet straight-through cable is used for IP network connectivity and does not support the serial VISCA protocol needed for camera control.
A DB25-to-DB9 serial cable is a legacy RS-232 adapter and does not match the RJ45 interface on the PTZ camera side.
VISCA (Video System Control Architecture) is the serial-based protocol used to send pan, tilt, and zoom commands to PTZ cameras. The C-Series codec exposes camera control via a DB9 serial port, while the PTZ camera accepts control on an RJ45 port, so a DB9-to-RJ45 VISCA cable is required. Using any other cable type will not carry the serial VISCA control signals needed to operate the camera.
Concept tested: PTZ camera control cabling for C-Series codecs
Source: https://www.cisco.com/c/en/us/td/docs/telepresence/endpoint/c-series/install_guide/c_series_install_guide.html
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