Installation
131
Aastra 470 as of R3.2
syd-0337/1.6 – R3.2 – 09.2014
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 Aastra 5300
1)
series and for SB-4+ and SB-8 DECT radio
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 in-
terface. 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 Con-
nection 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
