TANDBERG D11624 - Manual

Tandberg Video on Frame Relay D11624 rev.01 8 framer both at the ACT-recommended setting of 256 bytes and at 1.500 bytes (which isin line with the recommendations of other framer users) without any difference in theoverall performance. You can connect either the VFX-250S or the ABL VT2C directly to ...

Tandberg Video on Frame Relay D11624 rev.01 9 6. Application Overview The diagram below shows the use of the VFX-250S in a video-conferencing over frame relay application. In this application the VFX-250S takes the H.320 datastream from theend point video-conferencing equipment and packetises it int...

Tandberg Video on Frame Relay D11624 rev.01 10 7. Technical Specification of VFX-250S 7.1 Network & User Interface Connector: Female 37-pin D type to user equipment (Video codec) Male 37-pin D type to networkequipment (FRAD) Interface: RS449 (X.21, V.35 and others with adapter cables) RS422 bala...

Tandberg Video on Frame Relay D11624 rev.01 11 • 4 configuration entries, each of which contains TX and RX DLCI settings, UserClock Speed, Packet Length, and AVB • LMI type control selection & parameter entry (ITU Annex A, ANSI Annex D, FrameRelay Forum, or Off) • Master, Slave, or Auto-assign s...

Tandberg Video on Frame Relay D11624 rev.01 12 8. Approvals FCC Class A Digital Devices and Peripherals This equipment has been tested and found to comply with the limits for a Class A digitaldevice, pursuant to Part 15 of the FCC Rules. These limits are designed to providereasonable protection agai...

Tandberg Video on Frame Relay D11624 rev.01 13 10. Economics of Video over Frame Relay The economics of video over frame relay are similar to those driving the use of voiceover frame relay. Voice over frame relay is fairly well accepted as being economicalwhen used in international applications. Wit...

Tandberg Video on Frame Relay D11624 rev.01 14 11. Appendix A: Cables and Pinouts 11.1 Standard Console Cable The console port on the VFX-250S conforms to EIA-232/V.24 electrical specifications.

Tandberg Video on Frame Relay D11624 rev.01 15 11.2 Standard EIA-449/RS449 Cables 11.2.1 Network Cable 11.2.2 User Cable A note about RTS signalling: Some manufacturers state thattheir network interface is RS449(which uses RS422 signallinglevels) but actually use RS423signals for the control leads. ...

Tandberg Video on Frame Relay D11624 rev.01 18 12. Appendix C: Glossary and abbreviations AVB - Automatic Variable Buffer. Buffering - This is a term used to describe a method where data is held in a queue to allowequalisation of speeds on either side. CIR - Committed Information Rate Codec - A devi...

Tandberg Video on Frame Relay D11624 rev.01 19 - This is a Videoconferencing term, which is used to identify picture break-up.Digital video pictures are made up of 1000’s of pixels, each representing a colouron the image. In videoconferencing, pixels are grouped into blocks (the numberof which is de...