Aastra Ascotel IntelliGate 2065 - 7.5.5.2 Connection two-wire; 7.5.5.3 Connection four-wire

Ascotel IntelliGate 2025/2045/2065
Part 4 Cabling interfaces 811
7.5.5.2 Connection two-wire
Fig. 4.77: Schematic circuit diagram for two-wire connection
• Fit jumpers TFE1 and TFE2 for door intercom interface 1 and 2 in position 2D.
•Do not connect AC and AC’ (the interface signal circuit does not need a power
supply).
• Connect the voice path (a/b, 600 Ω, DC-free) to Ta and signal ground (SGND).
The interface volume control (Pot1 and Pot2) is not effective and the volume is set
on the door intercom system.
7.5.5.3 Connection four-wire
• Fit jumper TFE1 and TFE2 for door intercom interface 1 and 2 in position 4D.
• Connect the microphone (with a screened cable if required) to MIC and signal
ground SGND.
+
-
SGND
TS
TS'
LS
47
Ω
Pot
A
4D
2D
D
A
D
Door intercom system
TO
TO'
SON
SON'
Door opener
Bell
haz1154aaenb0
Ta