Ascotel® IntelliGate® 2025/2045/2065 as of I7.9
138
Installation
sy
d-
020
4/1.
7
– I7.
9
– 1
2
.2009
Note:
Make sure there are no loudspeakers in the vicinity of the terminals
used to make announcements (to prevent acoustic feedback).
4. 7. 5. 2
Switch group interface
The routing elements of switch groups 1..20 can be controlled via control inputs
ME1 and ME2 on the OI-2DOOR special card. Control is effected using external
switches (door contacts, time switches, etc.) which switch the appropriate inputs to
the PBX ground (GNDC). The signal no-load voltage is approx. - 40 , the short-cir-
cuit current approx. 4 mA.
The permissible switch and loop resistances are as follows:
•
Active state: < 4.5 k
Ω
•
Passive state: > 11 k
Ω
There are no special requirements for the cables.
The switch group configuration determines which of the switch groups 1…20 are
switched. Control of the switch groups using the control inputs takes priority over
control using */# procedures.
Tab. 66
Switch group control via the control inputs
Switch positions of the switch
groups
ME1
ME2
Position 1
Off
Off
Position 2
On
Off
Position 3
Random
On