Installation
111
Aastra 470 as of R1.2
syd-0337/1.2 – R1.2 – 11.2011
DSI bus configuration
For each DSI interface card, the
interface type
(protocol) on the DSI bus can be se-
lected under CM_2.1.1 in AMS:
•
DSI-AD2
:
For system phones of the Aastra 5300
1)
series and for SB-4+ and SB-8 DECT radio
units.
•
DSI-DASL
: For system phones of the Dialog 4200 series.
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. 55
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 connection
point (excl. connection cable)
1
A: max. 1,200 m
–
2
B: max. 1,200 m
C: max. 10 m
A
B
C
2. Connection
point
1. Connection
point
1. Connection
point
Communica-
tion server
Communica-
tion server