Copy of `Amplicon - Tech glossary`

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Amplicon - Tech glossary Category: Technical and IT Date & country: 25/11/2007, UK Words: 107

Transmission Turnaround
Switching the transceiver from transmission to reception and vice versa in a half-duplex circuit. See Communication Turnaround

Turnaround Time
The actual time required to reverse the direction of transmission from sender to receiver, or vice versa, when using a half duplex circuit

Unipolar
A signal being measured is said to be unipolar when the voltage on its 'high' terminal is always the same polarity (normally positive) in relation to its 'low' terminal

Video decoder
A video decoder is an IP gateway device that converts IP encoded video to a composite PAL, NTSC or SECAM signal

Video server - video encoder
A video server is an IP gateway device that converts PAL, NTSC or SECAM compliant video signals into a streaming video feed suitable for transmission across an IP nework

I-O (Input-Output)
The process of transferring data from or to a computer system including communication channels, operator interface devices or data acquisition and control channels

V Series Recommendations
CCITT specified standards dealing with modem operation over telephone circuits