BK-4M
Commutator (the device hereafter) is intended for operation in apartment doorphones as commutation
device providing intercom between the doorstation and subscriber handsets.
The is an upgraded version of the with improved user-friendly coding but similar terminals layout.
BK-4M BK-4
Commutators and are mutually interchangeable.BK-4M BK-4
Commutator pc.
Jumper pc.
Operating instruction pc.
The commutator does not contain voltage above 24VDC.
Do not perform any connections or coding when the power is on!
The device is fixed either with a springing clip to a DIN - rail (35 mm x 1-2 mm) or with screws (not supplied).
Connect and terminals of all devices to terminals of the corresponding circuits either of
the doorstation or the control unit (refer to their operating instructions for details).
Connect handsets to the terminals observing polarity: the handset LN+ should be connected to one of the
terminals of the and the to the or / / of thedevice(refertoFigure1).
BK-4M VIZIT
PARTS LIST
BK-4M 1
12
1
SAFETY INSTRUCTIONS
INSTALLATION
LINE, GND, Ek SEL BK-4M
BK-4M LM
BK-4M LN- FA FB FC FD
CODING
Before performing connections, numbers of apartments should be programmed in the device. Apartment numbers may
be of the same decade or of different decades.
To encode the first apartment, set 1 to 8 jumpers (supplied) in the zone. The number of apartment must be equal to the
sum of numbers above the jumpers (refer to Figure 1: for example, to encode number 69, set jumpers under numbers 40,
20, 8 and 1).
To encode the next apartment, set jumpers (1 to 2) in the zone if necessary. The number of apartment is equal to the
number in zone a number from according tothetableonthePCB.
number in zone a number from according tothetableonthePCB.
To encode the last apartment, set jumpers in the zone if necessary. The number of apartment is equal to the number
in zone a number from according tothetableonthePCB.
FC + 1 to 4
Figure 1 69 70 71 75
are in the and zones, because in case of adding “ " (when the apartments numbers are ) no
jumper is needed, as shown in the table on the device PCB.
Max. number of connected handsets
Dimensions,
Weight, kg
Ambient temperature range to
Relative humidity of air up to at .
FA + 1 to 4
To encode the next apartment, set jumpers (1 to 2) in the zone if necessary. The number of apartment is equal to the
FB + 1 to 4
FD
shows how to connect handsets of apartments No , , and to the device. Note that in the picture there
no jumpers FB FC 1 successive
SPECIFICATIONS
mm 75х135х35
FB
FC
FA
4
0.2
1°С 40°С
93% 25°С
Lifetime of the product is not less than .
five (5) years
Guarantee repair must be carried out by the Manufacturer or by an Authorised Service Representative.
Warranty is not valid in case of:
- improper transportation, storage and installation, or misuse;
- mechanical damages;
- overload electrical breakdown or misconnection;
- actions of unauthorized persons;
- serial number is removed or defaced.
The Manufacturer has the right to make changes in product design, which do not affect operation of the product.
Ap. No70Ap. No71
FB
FB
LN
HandsetHandset
FA
Ap. No69
FA
LN
FC
LN
Ap. No75
FD
LN
Handset Handset
LN LN
FC
FD
LN
RU1
+3
+4
C1
+
For connection of a doorstation / control unit
refer to operating instructions on these devices
SEL
+2
Ek
Figure 1 - the BK-4M CommutatorConnection of
GND
LN
+1
LINE
FA =
80
40 20 10
8
421
BK-4M
Сommutator
PROGRAM
J1
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