
PK543A Tektone Intercom Amplifier (Spec Sheet)
How to set up PK543 Tektone Amplifier (video)
Discription
The PK543A Apartment Intercom Amplifier is a selfcontained unit that does not require an external amplifier.
The PK543A is designed for use with 3-, 4- or 5-wire
apartment remote stations and provides amplification,
control and power circuits needed to operate a complete
apartment intercom system. Voice volume control and
tone volume control are easily adjustable through the
screwdriver opening on the front panel.
Additional functions include multiple door entrance operation with the PK502B; AC, DC or Maglock configurations
with three selectable delayed door timing modes; post
office door lock release; steady or warble call tones; power
LED; selectable door button hold timeout; and selectable
talk before door interlock (available for 4-wire stations
only).
Equipment Location
Suite/Apartment Stations
Locate suite stations (also known as remote stations)
where convenient for use. Install a housing or back box
at the desired location.
Entrance/Lobby Panel
Use an OH190 series housing and OF190 series frame
for flush wall mounting. Use an OF190S series frame for
surface mounting. Locate the entrance panel where it
is sheltered from weather.
PK543A Amplifier
Install the amplifier inside the entrance panel when
using an OH190 series housing. The amplifier must
be installed outside the entrance panel when using
an OF190S series surface frame. Refer to Connections
section, item #3, on page 2 for further details.
Wiring
Suite/Apartment Stations
Stations may be connected in risers using the following
cable configurations:
3-wire stations: 1 twisted pair #22 AWG, plus 1
conductor #22 AWG per station in riser.
4-wire stations: 1 twisted pair #22 AWG, plus 1
conductor #22AWG, plus 1 conductor #22 AWG per
station in riser.
5-wire stations: 1 twisted pair #22 AWG, plus 2
conductor #22 AWG, plus 1 conductor #22 AWG per
station in riser.
The maximum cable length is 400 feet (120 meters).
Additional risers may be added as needed. Station cables
must not be run in the same conduit with (or too close
to) electrical wiring or background music, and must
not be close to fluorescent lighting or other electrical
equipment. Failing to observe this requirement can
result in noise entering the intercom audio. Ensure that
sufficient amounts of cable are left in the back box to
make connections to stations.
Transformer
Cable wiring must be 2 conductor #18 AWG with a
maximum cable length of 80 feet (25 meters). If using
#14 AWG wire, this distance can be extended to 200
feet (60 meters). Route cable away from suite station
wiring and maintain a minimum of 3 feet (1 meter) of
clearance between the transformer and the amplifier.
Door Release
Cable wiring must be 2 conductor #18 AWG with a
maximum length of 50 feet (15 meters). See Figure 2
on page 5 for specifics of each door control unit
configuration. Note: An SS106 transformer must be
used for 24 VAC doorstrike and 12 VDC Maglock
applications (8 volt tap required)