System interfaces
41
System functions and features as of R3.0
syd-0367/1.3 – R3.0 – 03.2013
2. 2. 1. 2 DSI terminal interfaces
The DSI digital terminal interface is a proprietary, system-specific 2-wire interface
used for connecting following terminals:
• DSI system phones
•AastraDECT Radio units
Fig. 14 DSI terminal interfaces
Two system phones can be connected in parallel to a terminal interface DSI. Ad-
dress allocation is done by means of a switch on the phone.
Only one DECT radio unit can be connected for each DSI interface. An SB-8 radio
unit with 8 call channels occupies two DSI interfaces.
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