ASCOM Ascotel 2025 System Manual page 864

Tab. 4.64: Signals and electrical values for the door intercom
Function
Power supply input
Ringing signal input
Connection for two-wire door intercom
Microphone signal input
Microphone remote supply output
Loudspeaker connection output
Floating contact, "Switch on / off power supply to
door intercom"
Floating contact, "door opener"
Tab. 4.65: Wiring for door intercom interface 1 (door intercom x.1)
Signal
Interface x.1
—
—
SON'1
SON1
AC'1
AC1
TO'1
TO1
TS'1
TS1
Tb1 (= SGND1)
Ta1
SGND1
LS1
MIC1
MIC+1
HBT_20321104_04/B0_en
Pin
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
ascom Ascotel 2025/2045/2065
Signal Value
AC, AC' 8...14 VAC
SON, SON' 5...30 VAC / DC
600 W
Ta, SGND
MIC 130 mV (for full output)
MIC+ approx. 8 VDC
max. 3 W on 4 W
LS, SGND
TS, TS' max. 60 VDC, 70 VAC, 0.5A
TO, TO' max. 60 VDC, 70 VAC, 0.5A
Cabling Interfaces 4.93