Technical Specifications - Telecom Behnke 20 Serie Instructions

Manual Door intercom devices a / b Series 20 / 30 / 50
GB GB

Technical Specifications

technical specifications
9.
Connection type:
Power supply:
Coil tension:
Coil current:
Additional power supply:
Terminal:
Recognised caller signal:
Recognised busy signal:
Recognised busy signal interval: Signal tones for 160-700 ms or pauses for 160-700 ms
Permitted cable lengths:
Dialling methods:
Built-in relay:
Relay switch power:
Additional power supply on MLMs:
Memory:
IP rating:
Operating temperature:
Tested according to:
69
analogue telephone network, a / b port
via the a / b port
20-70 VDC
20-60 mA
12-15 V= potential-free
Behnke power supply unit or any other additional power supply
in connection with a Behnke DC-DC converter;
one Behnke Intercom station per power supply unit
ZR according to TBR 21
cannot be specified exactly, as it depends on the signal's
amplitude, frequency and interval
400-450 Hz sinus
respectively.
maximum 10 m each (for MLM A, +MLM B, +MLM C, LS, MIC,
T1 and T2) or maximum 25 m each (für LS, MIC, T1 and T2,
when no additional MLM is connected)
DTMF dialling, 50/50 ms (tone/pause)
2 pieces (2 switch relays)
max. 60 VA/24 W: 0.5 A, 120 V~ or 1 A 24V= (ohmic load)
max. current load 30 mA per MLM
EEprom, non-volatile
54
-20° to +50° C
TBR 21 as well as EC 201 121 (EU-wide network access) EN 55022
EN 55024 (electromagnetic compatibility EN 60950 (electric
product safety)
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