Rev. 4 - 02/09
Annunciator Control Unit
The Alpha Communications® PK151N annunciator con-
trol unit is used only with the NC110A, NC110N, NC150N,
NC150R and NC200N series nurse-call and area of refuge
(area of rescue) type systems and annunciators. The
PK151N is used to provide tone signal, tone silencing,
tone-silenced visual indication, and 24VDC for system
operation. The PK151N is U.L.® Listed 1069.
The PK151N operates on 24VAC (30VA) low-voltage
Class II wiring, using our model #SS106 transformer. All
PK151N connections are positive barrier screw terminal
• Easily Installs Right on Finished Wall Surface or in
Optional Junction Box
• Operates on Safe Low-Voltage Class II Wiring
• Positive Barrier Screw Terminal Connections
• U.L.® Listed 1069 to Latest Standards (when used
with IH151N and SS106)
• Built-in Tone Signal Generator and Tone Silencer
Height: 9.50" (241mm)
Width: 2.38" (61mm)
Depth: 2.25" (58mm) from mounting
Rugged Extruded Aluminum Case
Integrated circuit oscillator with steady and
warble tones available.
Positive barrier type screw terminal con-
nections. Should be installed within 50
feet of master station.
0-50 degrees C
Note: Specifications are the minimum requirement for
system operation. Some systems may require additional
equipment. Contact your factory representative.
ARCHITECTS' AND ENGINEERS'
The annunciator control unit(s) shall be Alpha Commu-
nications®/Tektone model PK151N, or approved equal,
and shall provide tone, control and power circuits needed
to operate the entire annunciator/nurse-call system. The
PK151N shall feature integrated circuit call tone oscilla-
tor, and DC power supply. The PK151N shall be U.L.®
Listed 1069 to the latest standards.
Low voltage wiring shall be used and positive barrier type
screw terminals shall be provided for installation wiring.
The PK151N shall be mountable right