Ascotel IntelliGate 2025/2045/2065
810 Cabling interfaces Part 4
Connection of a simple loudspeaker microphone module or of a loudspeaker
(4...8 Ω) and an electret microphone with integrated preamplifier:
• Fit jumper TFE1 and TFE2 for door intercom interface 1 and 2 in position 4D.
• To power the interface connect an external bell-ringing transformer
(8...12 VAC) with the AC and AC' connections.
• Make sure the bell-ringing transformer's no-load voltage is < 16 VAC and that
a minimum current of 0.6 A (for 12 V) is available in the case of an announce-
ment system.
• Connect the microphone to MIC and MIC+, using a screened cable if necessary
(observe the correct polarity).
• Connect the loudspeakers to LS and signal ground (SGND). If the full output
power is to be used, use loudspeakers with a min. load-carrying capability of
3W.
• Set the loudspeaker volume on potentiometer Pot1 and Pot2.
• Connect the door intercom (wire-wire connection) to MIC, MIC+ and LS.