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Rev. 3 - 10/02
ARCHITECTS' AND ENGINEERS'
The nurse call--system--master station shall be Alpha
Communications®/Tektone NC250 (50 station), or ap-
proved equal, and shall have digitized audio to the central
equipment. The digitized audio shall enable interference
free transmission of audio for distances up to 2000' from
master to central equipment. The master station shall have
a frequency response from 200 - 4500 hertz. The master
station, and wiring from the master station to the system
central equipment, shall be supervised.
Model NC250 shall include the signaling circuits neces-
sary to receive and answer calls from all patient, staff, and
duty stations; and receive calls from code and emergency
stations on the NC205 System. The master station shall
provide for handset or loudspeaker communication. Func-
tion buttons with LED's shall be provided to initiate reset
operations, paging operations, zone operations, nurse
request and follower, priority selection, and privacy op-
erations. Additional buttons shall be provided for talk and
room selection with LED indicators. Page Inhibit, Privacy,
Priority, Master-to-Master Communications, and Zoning
shall be master programmable.
Incoming calls shall be displayed using individual 50 LED
indicators, priority level LED indicator and tone shall
annunciate the highest priority call placed.
The master station(s)shall be equipped with an integral
handset, volume control, color-keyed function switches
with LED's audible signal control switches with 50 LED's,
Power LED, Fault LED, Priority LED's, 2.5" speaker, and
electrostatic microphone. All switches shall be of spill-
proof membrane switch design.
Each master station shall be able to address up to 50