2.2General
The unit contains one dual hybrid card
The following diagram shows a typical installation.
Trilogy Matrix
Port “A” | Port “B” |
Audio
Data
Audio
Data
TIC (optional)
TIC (optional)
Dual Hybrid Channel 1
Dual Hybrid Channel 2
Handset (optional)
Handset (optional)
Telephone Line
Telephone Line
The Dual Hybrid module plugs into the second card slot of the frame, the first and third slots are for channel one and channel two Telephone Interface cards (TIC) respectively.
Each channel of the digital Dual Hybrid has identical features. The line interface has jumper selectable CTR21 or 600 ohms that allows the hybrid to operate in the majority of countries. Also provided on the card is a DIL header to allow the addition of a balance network when required. This is normally done after consulting Trilogy Support.
The provision of the optional parallel handset connection when auto is set to off this allows for manually setting up and answering calls when used in conjunction with the manual seize and drop controls on the Hybrids front panel. If the front panel switch is selected to Auto the parallel handset will be disconnected.
Page 8 of 19 | Issue 1.2 | Trilogy Communications Limited |