Glossary
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B

Bandwidth: Decides the quality of the video call. High bandwidth gives high quality.

C

Call Control Data Triggered: Uses TxData, RxData and clock signals o nly. Use Data Triggered
when no handshake signal is available.
Call control Leased Line: Is a non-dialing protocol a nd should be used when two systems are
connected in a point-to-poi nt connection. Use Leased Line when the handshakin g signals
DTR and CD are available.
Call control Manual: Should be used when no ha ndshake signals are available, and the external
equipment requires a cons tantly connected line.
Call control RS366 Dialing: The only dialing protocol and would normally be u s ed together with
network clocking RS449/V35 Compatible when the external system use s RS2 366 ports.
Call status: Comprehensive information about the call listing tran smitted and received
audio/video/data information.
Camera tracking: Voice Activated Camera Positioning - the camera will automatically view the
current spe aker.
Camera tracking mode: Voice Activated Cam era Positioning - the camera will automatically
view the current speaker.
Chair control: Enables one participant to control the meeting by selecting whic h of the
conference participants that is to be broadcasted to the other participants.
Channel status: Comprehensive info rmation about the call progress listing the numbers called,
and if an error occurs a cause code is displayed.
CIF: Common Intermediate Format, 352x288 pixels
Closed Captioning: Text chat.
Codec: The Codec is the heart of the system. The main task for the Codec is the compression of
outgoing video, audio and data, the transmission of this information to the far end, and
the decompression of the incoming info rmation.
Continuous Presence: See Split Screen
Control Panel: The Control Panel is found in the main menu.
CSU: Channel Service Un it

D

Daisy-chaining: Use of several cameras in a video conference.
Dataport: The system provides two standard RS 232 data ports to allow a com puter to be
connected for data transfer and control purpo ses.
Dataport 1: A standard RS 232 data port to allow a computer to be connected for data transfer
and control purposes.
Dataport 2: Dedicated to the main camera and will not be available in standard configuration.
DES: Encryption. (Data Encryption Standard)
DHCP: Dynamic Host Configuration Protocol.