GB
Manual Door intercom devices a / b series 20 / 30 / 40 / 50 / 20-0028A/-0028B
Connection
GB
68
www.behnke-online.com
Additional
power supply
potential-free voltage
Lift emergency phone 20-0028A (up to firmware version BT MA 1.63, delivered up to the second
quarter of 2019)
6 - 24 V =
Alarm input
–
+
Relay 1
Relay switch power:
max. 60 VA 24 W 0.5 A 120 V~
or 1A 24V=
Relay 2
Relay switch power:
max. 60 VA 24 W 0.5 A 120 V~
or 1A 24V=
Operating contact
Operating contact
Control contact
Control contact
Rest contact
Rest contact
12 V - 15 V=
–
+
Not used in this device
Please note:
Please compare your connection boards of the delivered device/rep. kit to the con-
nection boards in the picture. You can find further configuration steps from page 72 onwards.
{
Emergency call button
- Must be potential-free
- Normally configured closing contact (default)
- Optional opening contact (configuration step 970)
Alternative for non-isolated button (1.40 or later):
- Connect button with 6 - 24V at the alarm input minding the polarity
- Set configuration step 17 to value “6” (trigger like T2)
Please note: if the button is connected via the control cabinet, an intermediate relay must be inserted into the emergency phone.
Analogue landline connection,
analogue extension of a telephone
system or GSM gateway
*
Connection plug to
the basic electronics
(required for oper-
ation)
Travelling cable
To the button
in the cover
T1
To the speaker
in the cover
To the microphone
in the cover
Alt
ern
ati
ve
to T2*
Screen
To the outside
door intercom device
under the cabin 20-9230A
Red
p
at
ch c
ab
le
20-9
30
2
Yel
lo
w p
at
ch c
ab
le
20-9
30
9
Distance between
speakers and microphone
must be at least 15 cm
Built-in speakers
20-9200 to 20-9202
Built-in microphone
20-9204
Emergency call button
in the cabin
T
!
*
