Installation
130
Mitel 470 as of R4.1
syd-0585/1.2 – R4.1 – 08.2016
DSI bus configuration
For each DSI interface card, in the Cards and Modules view, ( =4g) the protocol can
be chosen on the DSI bus:
• DSI-AD2:
For system phones of the MiVoice 5300
1)
series and for SB-4+ and SB-8 DECT ra-
dio units.
• DSI-DASL: For Dialog 4200 series system phones.
Depending on the line length 1 or 2 phones can be connected on each DSI-AD2 inter-
face. The following requirements apply with regard to the bus length to ensure that the
maximum permissible signal delay is not exceeded:
Tab. 59 DSI-AD2 bus length and number of phones
Fig. 46 DSI-AD2 bus
Notes
– The total length of the cables from the communication server to the system phone must not
be less than 10 m.
– Only one system phone and only one phone of the Dialog 4200 series can be operated on
each DSI-DASL interface. The maximum line length for a 0.5 mm wire diameter is set at
1000 m.
1) Office 10, Office 25, Office 35, Office 45/45pro are supported as before
Number of phones Total length of DSI-AD2 bus
Distance between the 1st and 2nd ones Connec-
tion point (without connection cable)
1 A: max. 1200 m –
2 B: max. 1200 m C: max. 10 m
A
B
C
2. Connection
point
1. Connection
point
1. Connection
point
Communica-
tion server
Communica-
tion server
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