Com Port And Camera Control Port - Cisco TelePresence System Codec C90 Manual

Cisco TelePresence System Codec C90
Contents
COM port and Camera
Control port
COM port
1 x COM (RS-232) data port for codec control
and configuration through API commands.
Camera Control port
1 x Camera Control (RS-232) port for power
and camera control (pan, tilt, zoom) using the
VISCA™* protocol.
Main connector. The main camera is
connected to the Camera Control port.
Power. Pin No. 4 on the Camera Control port
provides 12 V DC / 1 A to the main camera.
If more than one camera is connected, only
the first camera is powered from the codec.
The additional cameras must be daisy chained
by using a serial cable, and each will need an
external power supply.
Additional cameras. For information about
additional cameras, see the PrecisionHD
Camera User Guide which is found on our
web site, go to: http://www.cisco.com/go/
telepresence/docs
*VISCA™ is a trademark of Sony Corporation
RS232 9 pin D-SUB pin-out
External view of socket
1 5
6 9
D14644.03 Codec C90 Physical Interface Guide TC4.1, February 2011.
© 2010-2011 Cisco Systems, Inc. All rights reserved.
Introduction Connecting to the codec
Pin-out—COM Port
Pin Signal name Direction
1 Carrier detect, CD From DCE
2 Receive data, RXD From DCE
3 Transmit data, TXD To DCE
4 12 V / 1 A To the main camera
5 Signal GND
6 Data set ready, DSR From DCE
7 Ready to send, RTS To DCE
8 Clear to send, CTS From DCE
9 Ring indicator, RI From DCE
The physical interface The physical interface
COM port
Camera Control Port
Pin-out—VISCA™ camera control
RJ11, 8 pins shielded modular jack
Pin Signal name
8 +12V (presence 2.8mA current
source when connected in daisy
chain)
7 GND
6 TXD (out)
5 NC (no connect)
4 NC (no connect)
3 RXD (in)
2 GND
1 +12V
22
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Pin-out—Camera cable
Signal RJ-45 D-SUB
name pin pin
+12V DC 1 Twisted 4
pair
GND 2 5
RX 3 Twisted 2
pair
TX 6 3
NC 4 Twisted 1
pair
NC 5 6
GND 7 Twisted 5
pair
+12V DC 8 4
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