Specifications

Single Door Products
SiPass Bewacom
1-12 © Siemens Switzerland Ltd 2011
Type Order No.
BM31
Single button door entry phone for PABX
BM31 is a smart and cost-efficient Bewacom door entry phone that con-
nects to a company’s existing PABX internal telephone system in just
the same way as any other extension in that system.
Since the BM31 makes use of the “hotline” function in PABX systems‚ it
only has one call button to allow calls to a single extension (usually
reception‚ but it can be set to any number in the PABX system). Instal-
lation is fast and easy with minimal cabling required.
The BM31 also includes a tamper switch and an output for camera con-
trol. The tamper switch is very useful in that it can be used together
with the SK5 security unit to eliminate the possibility of opening the
lock by using battery power directly on the lock cables.
A video surveillance camera can be connected to the BM31 via its out-
put for camera control. BM31 can trigger the camera to start filming as
soon as a visitor pushes the call button on the BM31‚ for example. This
video can either be viewed on a connected monitor directly by the per-
son who picks up the call (the receptionist‚ for example)‚ or it can simply
be saved in the video surveillance log and viewed later‚ if required.
Interface Two analog extension cables for
PABX
Operating voltage 12 to 24 VAC/DC
Current consumption 60 mA in standby
Inputs Exit request (with delay). External
control of calling. External control
of ending call.
Outputs Voltage-free relay contact‚ max. 2 A
28 VDC. Tamper switch for alarm
(normally closed). Relay for control
of CCTV system.
Calling time Fixed 30 seconds
Opening time Fixed 7 seconds
Code capacity N/A
Operating temperature -35 to +50 °C. At 90% relative air
humidity.
Environment Indoor or outdoor use. In very
exposed locations‚ use SH3 or SH1
rain cover.
IP rating IP54
Housing Cast metal with stainless steel but-
tons and security lock. For flush
mounting‚ use BB5 flush mounting
kit.
Dimensions (W x H x D) 80 x 200 x 40 mm
Weight 1.12 kg
S24246-C7901-A1