Digital terminal interfaces (DSI)
Shows you the available terminal interfaces for digital system phones. You can connect 2 system phones or one DECT radio unit per interface. The line length can be up to 1.200 m long.
DSI variants
Your communication server supports system phones with DSI-AD2 interface at its digital terminal interface. The Mitel 470 communication server also supports system phones with DSI-DASL interface.
Digital terminal interface DSI-AD2
Depending on the line length 1 or 2 system phones can be connected on each DSI interface. In this context the DECT radio unit is also regarded as a system phone. To ensure that the signal propagation time is in the optimum range, the line length is subject to the following requirements:
With line lengths of up to a maximum of 700 m you can connect two system phones. The maximum line length between the connection points of the two system phones must not exceed 10 m.
If you connect only one system phone, the maximum line length is 1.200 m.
The line length between the connection socket of the communication server and the connection socket of the system phone must be at least 10 m.
You must not connect any other radio units or system phones to a DSI-AD2 interface to which a DECT radio unit is already connected.
If the terminals connected have high power requirements you need to use a local power supply or reduce the line length. Refer to the information in the User’s Guide of the terminals in question and your communication server’s System Manual.