Alpha Communications TekTone Tek-CARE NC110A Manual

Tek-CARE®NC110A,NC110N
Visual Nurse Call Signaling System
UL®1069 Listed
Operation, Installation and Service Manual
APPLICATION:TheTek-CARE®NC110A,NC110NVisualNurseCallSignalingSystem
is designed for nursing home or individual ward use. The nurse call system provides
audibleandvisualindicationofallcallsoriginatinginthesystem,includingbothnormal
and emergency calls. The NC110A, NC110N Master Station contains lamps for call
indication,aswellas tone-off switchandanaudible tone signalingdevice.
IL381
SECTION E
Rev. 17 - 03/2011
Alpha Communications®
42 Central Drive
Farmingdale, NY 11735-1202
Phone: (631) 777-5500
Fax: (631) 777-5599
Website:
www.AlphaCommunications.com
Email:
TOLL-FREE Technical #:
1-800-666-4800

ii • IL381 Tek-CARE®NC110A, NC110N Manual Copyright © TekTone Sound & Signal Mfg., Inc. All Rights Reserved.
Operation,Installation and ServiceManual
Copyright © 2001–2011
TekTone®Sound & Signal Mfg., Inc., All rights reserved.
No part of this publication may be copied without the express written permission of TekTone®Sound & Signal Mfg., Inc. The content
of this manual is furnished for informational use only, is subject to change without notice, and should not be construed as a
commitmentbyTekTone®Sound& SignalMfg., Inc.TekTone®Sound &Signal Mfg., Inc.assumes no responsibilityor liability forany
errors or inaccuracies that may appear in this documentation.
TekTone,theTekTone logo,Tek-Call,Tek-Care,Tek-Check-In,Tek-Com,Tek-Digicare,Tek-Door,Tek-Entry III,Tek-Guard,Tek-Micro,
Tek-Micro II, Tek-MMARS II, TekNIOS, TekNIOS II,Tek-Paging, Tek-Phone, Tek-Safe, Tek-Select II, Tek-Sentry, Tek-Sound, Tek-
Status, Tek-Trio and Tek-View are either registered trademarks or trademarks of TekTone®Sound & Signal Mfg., Inc. in the United
States and/or other countries.All other trademarks are the property of their respective owners.

IL381 Tek-CARE®NC110A, NC110N Manual • iii
Copyright © TekTone Sound & Signal Mfg., Inc. All Rights Reserved.
System Operating Instructions.............................................................. 1
NC110N Master Stations ............................................................................................. 1
NC110A Master Stations ............................................................................................. 3
SF100N,SF100/2,SF100C,SF102Call Stations ............................................................ 3
SF101N,SF101C CallStations ...................................................................................... 3
SF151N,SF153N, SF155B,SF339 Emergency Stationsand SF156BCode Station ....... 4
LI150N,LI150BDuty Stations ..................................................................................... 5
LI381CorridorLights ................................................................................................... 5
LI382,LI382LEDCorridorZone Lights ........................................................................ 5
System Operating Principle................................................................... 6
PK151A,PK152 Power& ControlUnits ...................................................................... 6
PK800A Secondary Power Supply ............................................................................... 6
NC110N Master Stations ............................................................................................. 6
NC110A Master Stations ............................................................................................. 6
SF100N,SF100/2,SF100C,SF101B,SF101N,SF101C,SF102CallStations .................. 7
SF151N,SF153N, SF155B,SF339 Emergency Stationsand SF156BCode Station ....... 7
System Installation.................................................................................. 8
Installation Procedure .................................................................................................. 8
Equipment Locations ................................................................................................... 8
Wiring Installation ....................................................................................................... 9
Housing Installation .................................................................................................... 9
Wire Checkout ............................................................................................................11
Wire Connections .......................................................................................................11
Connections Checkout ...............................................................................................12
System Test Instructions ............................................................................................12
System Checkout and Testing ....................................................................................12
System Maintenance Instructions....................................................... 14
NC110A Master Stations ............................................................................................14
NC110N Master Stations ............................................................................................14
PK151A,PK152 Power& ControlUnits .....................................................................15
PK153 ThirdPriority ControlUnit ...............................................................................15
PK800A Secondary Power Supply ..............................................................................15
FZ151In-Line Fuse Holder .........................................................................................15
SF100N,SF100/2,SF100C,SF102Call Stations ...........................................................15
SF101N,SF101C CallStations .....................................................................................16
SF151N,SF153N, SF155B,SF339 Emergency Stationsand SF156BCode Station ......16
LI150N,LI150BDuty Stations ....................................................................................16
LI381Corridor and LI382Corridor ZoneLights .........................................................16
Replacement Parts ......................................................................................................16
Table of Contents ————————————————————

iv • IL381 Tek-CARE®NC110A, NC110N Manual Copyright © TekTone Sound & Signal Mfg., Inc. All Rights Reserved.
Illustrations
Figure 1—NC110N Master Station Control Locations................................................. 1
Figure 2—NC110A Master Station Control Locations................................................. 2
Figure 3—Call Station and Call Cord Control Locations.............................................. 2
Figure 4—Emergency, Code, Call & Duty Station Control Locations .......................... 4
Figure 5—Master Panel Housing Chart and Wall Cut-Out Details .............................10
Figure6—Ring & Back Box for Call, Emergency,Code &Duty Stations,
and Corridor & Zone Lights ..................................................................10
Figure7—SS106 Transformer Installation ..................................................................10
Figure8—NC110N SelectorLamp/Switch Lens,Filter andLamp Replacement ..........14
Figure9—NC110AWiringDiagram ............................................................................17
Figure10—NC110NWiringDiagram ..........................................................................18
Figure10a—NC150N, NC200N,Two Stationsin Parallel ............................................19
Figure11—NC110A HousingInstallation Diagram ....................................................20
Figure12—PL116WallPlateWiringDiagram .............................................................20
Figure13—NC110NSecondMasterWiring Diagram .................................................21
Figure14—PK153WiringDiagram .............................................................................22
Figure15—PK153WiringDiagram withSF156B CodeStation ...................................23
Figure16—PK151A orPK152 toPK800A Interconnection.........................................24
Figure17—SF337C CrossReference Diagram ............................................................25
Figure18—SF339 CrossReference Diagram...............................................................26
Figure19—NC110NHookuptoNC150N, NC200N .....................................................27
Figure20—SF157 and SF157/2Wiring Diagram .........................................................28
Table of Contents

IL381 Tek-CARE®NC110A, NC110N Manual • 1
Copyright©TekToneSound&SignalMfg.,Inc.AllRights Reserved.
System Operating Instructions ——————————————
Figure 1—NC110N Master Station Control Locations
1 – Tone Off Button: Silences normal call tone when depressed.
– Tone Off Lamp: Indicates tone silenced when illuminated.
2 – Tone Test Button: Activates tone signal when depressed.
3 – Call Lamp: Indicates incoming call when illuminated.
Indicates emergency call when flashing.
4 – Emergency Lamp: Indicates emergency call when flashing.
5 – Station Selector Lamps (PM110/4N): Indicates incoming call
from associated remote when illuminated. Indicates
emergency call from remote when flashing.
6 – Lamp Test Button: Illuminates all lamps on panel when
pressed.
Thissection provides completeoperating instruction forallTek-CARE®NC110NandNC110A
functions, as well as reference drawings for use in locating and describing all controls.
System operators must read the following operating instructions concerning system
equipment and the terms used in conjunction with the equipment.
NC110N Master Stations
Refer to Figure 1 for locations, names, and functions of controls and indicators.
Answer Emergency Calls:
All emergency calls take precedence over any normal call signal. Calls must be answered
in person and can only be canceled from point of origin. Emergency calls are indicated by
simultaneous operation of the following signals:
• Rapidflashingoftheassociatedstationselectorlamp,whichismarkedtoindicateorigin
ofcall.
• Rapidflashingofcall lamp andemergencylamp.
• Rapidly pulsing audible tone.
Answer Normal Calls:
Calls must be answered in person and can only be canceled from point of origin. Normal
calls are indicated by simultaneous operation of the following signals:
• Steadyilluminationoftheassociatedstationselectorlampwhichismarkedtoindicate
originofcall.
• Steadyilluminationofcalllamp.
• Slowlypulsing audibletone.The audiblecall signalmaybe canceledfor normalcalls
by pressing the TONE OFF button. The TONE OFF button will then illuminate to indicate
tone silenced. Pressing the TONE OFF button when illuminated will reset the call tone.

2 • IL381 Tek-CARE®NC110A, NC110N Manual Copyright©TekToneSound&SignalMfg.,Inc.AllRights Reserved.
Figure 3—Call Station and Call Cord Control Locations
1 – Call Placed Lamp: Indicates a call is
placed when flashing.
2 – Cancel Button: Cancels the call when
pressed.
3 – Call Cord Jack: Receptacle for SF301A
or SF302 call cord.
4 – Plug: Connects call cord to patient
station when plugged into call cord jack.
5 – Call Button: Places a call when pressed,
if cord is connected to patient station.
4
5
SF301ACallCord
SF302CallCord
SF100NCallStation
SF100C
CallStation SF102Dual
CallStation
SF100/2DualCallStation
Figure 2—NC110A Master Station Control Locations
POWER
TONE
TEST
TONE
VOLUME
OFF
EMER.
CALL
CALL INDICATOR
EMERGENCY CALL INDICATOR
ROUTINE TONE OFF
TONE VOLUME SELECTOR
CALL TONE TEST
SYSTEM POWER INDICATOR ROOM INDICATORS

IL381 Tek-CARE®NC110A, NC110N Manual • 3
Copyright©TekToneSound&SignalMfg.,Inc.AllRights Reserved.
System Operating Instructions
Test Tone Signal:
Press the TONE TEST button. A tone signal should be heard at the master station.
Test Station Selector Lamps:
Press the LAMP TEST button (one is included for each panel of annunciator lamps). All
annunciator lamps on that panel should be illuminated. (See System Maintenance
Instructions for proper procedures and precautions in replacing defective lamps.)
Improper Operation:
• If the NC110N Master Station fails to operate as described, contact qualified service
personnel.TherearenouserreplaceablepartsontheNC110NMasterStationotherthan
the station selector lamps and lenses.
• Ifamalfunctionoccursduringacallandcausesalackofindicationofcalloriginonthe
master station, first determine the origin of the call by observing which corridor light
andcorridor zone lightis illuminated, then inform qualified service personnel.
NC110A Master Stations
Refer to Figure 2 for locations, names, and functions of controls and indicators. Operation
of the NC110A is similar to that of the NC110N, except that there is no selector lamp test
(NC110A has selector LEDs instead).
Adjust volume:
The NC110A master station has three volume levels. Press the volume button until the
desired level is reached. The level is indicated by three lighted LEDs above the volume
button. Use the tone test button to test volume when adjusting the volume.
Selector point labeling:
A slot is provided at the top of each column of selector points for inserting a paper strip
(TekTone®part numberLB516).Applyroom-identifying labelsbetweenthe dashedlines so
that each label lines up with the intended selector point on the NC110A membrane switch.
SF100N, SF100/2, SF100C, SF102 Call Stations
Refer to Figure 3 for locations, names, and functions of controls and indicators.
Call a Nurse: Press the CALL button located on the end of the call cord. The CALL PLACED
lamp will illuminate to indicate call placement. Wait for the nurse. Refer to Figure 3 for
locations, names, and functions of call cord controls.
Cancel a Call: Press the CANCEL button. Indicator will go off. If the call cord is pulled from
itsreceptacle, a callwill be placedautomatically and cannotbe canceled untilthe call cord
is replaced in the receptacle.
Replace Call Cord: See System Maintenance Instructions for proper procedures and pre-
cautions in replacing defective call cords.
Improper Operation: If the call station does not operate as described, contact qualified
service personnel. There are no user serviceable parts on the SF100N, SF100/2, SF100C
and SF102 Call Stations other than cords.
SF101N, SF101C Call Stations
Refer to Figure 4 for locations, names, and functions of controls and indicators.
Call a Nurse: Press the CALL button. The CALL PLACED lamp will illuminate to indicate call
placement. Wait for the nurse.

4 • IL381 Tek-CARE®NC110A, NC110N Manual Copyright©TekToneSound&SignalMfg.,Inc.AllRights Reserved.
System Operating Instructions
Cancel a Call: Press cancel button. Indicator will turn off.
Improper Operation: If the call station does not operate as described, contact qualified
service personnel. There are no user serviceable parts on the SF101N and SF101C Call
Stations.
SF151N, SF153N, SF155B, SF339 Emergency Stations and SF156B Code Station
Refer to Figure 4 for locations, names, and functions of controls and indicators.
Call a Nurse: Pull the call cord, slide the call/cancel switch down, or press the call/cancel
button. The CALL PLACED lamp will flash. Wait for the nurse.
Cancel a Call: Push the call/cancel switch up, press the call/cancel button, or twist the
push button. The CALL PLACED lamp will go off.
Figure 4—Emergency, Code, Call & Duty Station Control Locations
1 – Call Placed Lamp: Indicates a call is placed when flashing.
2 – Cancel Button: Cancels the call when pressed.
3 – Call Button: Places a call when pressed.
4 – Call/Cancel Switch: Places a call when pulled down. Cancels the call when pushed up.
5 – Call Cord: Places a call when pulled.
6 – Call/Cancel Button: Places a call when pressed to in position. Cancels the call when
pressed or twisted to out position.
7 – Tone Off Switch: Silences normal audible tone signal when pushed down.
SF151NEmergency
Station SF153NEmergency
Station SF155BEmergency
Station SF156BCode
Station
LI150BDuty
Station
Tone Off
LI150NDuty
Station
SF101CCall
Station
SF101NCall
Station
SF339Emergency
Station

IL381 Tek-CARE®NC110A, NC110N Manual • 5
Copyright©TekToneSound&SignalMfg.,Inc.AllRights Reserved.
System Operating Instructions
Improper Operation: If the call station does not operate as described, contact qualified
service personnel. There are no user serviceable parts on the SF151N, SF153N, SF155B,
SF339 Emergency Stations or the SF156B Code Station.
LI150N, LI150B Duty Stations
Refer to Figure 4 for locations, names, and functions of controls and indicators.
Emergency Calls: Emergency calls are indicated by a flashing CALL PLACED lamp and a
rapidly pulsing audible tone. The audible tone signal cannot be silenced by the TONE OFF
switch.
NormalCalls: Normal calls areindicated by steady illumination oftheCALL PLACED lamp and
a slowly pulsing audible tone. Push the TONE OFF switch down to silence the audible tone
signal. Push the TONE OFF switch up to turn the audible tone signal on.
ImproperOperation: Ifthe call station does not operate as described, contactqualified service
personnel. There are no user serviceable parts on the LI150N and LI150B Duty Stations.
LI381 Corridor Lights
Emergency Calls: Emergency calls are indicated by rapid flashing of the corridor light that
is associated with the calling station.
Normal Calls: Normal calls are indicated by steady illumination of the corridor light that is
associated with the calling station.
Lamp Replacement: See System Maintenance Instructions for proper procedures and pre-
cautions in replacing defective lamps.
Improper Operation: If corridor light does not operate as described, contact qualified ser-
vice personnel. There are no user serviceable parts on the LI381 Corridor Lights other
than lamps.
LI382, LI382LED Corridor Zone Lights
The LI382 Corridor Zone Light includes two indicator lamps: a clear normal call indicator
lamp and an emergency call indicator lamp with a red bulb cover. The LI382LED Corridor
ZoneLight includes four indicator LEDs:two clear normal call indicatorLEDs thatoperate in
unison, and two red emergency call indicator LEDs that operate in unison.
Emergency Calls: Emergency calls are indicated by rapid flashing of the red corridor zone
light(s) associated with the zone or area from which an emergency call has been placed.
Normal Calls: Normal calls are indicated by steady illumination of the white corridor zone
light(s) associated with the zone or area from which a normal call has been placed.
ConcurrentEmergency andNormalCalls:Ifan emergency and normal callare placed inthe
same zone at the same time, the red light(s) connected to the emergency station from
which a call was placed will flash rapidly, while the white light(s) associated with the
normalcall will maintain a steadyillumination.
Lamp Replacement: See System Maintenance Instructions for proper procedures and pre-
cautions in replacing defective LI382 lamps.
Improper Operation: If corridor zone light does not operate as described, contact qualified
service personnel. There are no user serviceable parts on the LI382 Corridor Zone Lights
otherthan lamps and redbulb cover.Thereare no userserviceable parts on the LI382LED
Corridor Zone Lights.

6 • IL381 Tek-CARE®NC110A, NC110N Manual Copyright©TekToneSound&SignalMfg.,Inc.AllRights Reserved.
System Operating Principle –———————————————
Each system uses a series of bus conductors to carry the operating and signaling voltage to
the various units. In addition, each station capable of calling the master station has individual
conductors between it and the master to give the station its own identity.
When a call button is depressed, switching circuits operate to light various call lights and to
energize system call tone.All calls must be reset at the point of origin.
Emergency calls are signaled by a different flashing rate at the master station.An emergency
call is indicated by an intermittent tone and flashing lights at approximately 1/3-second
intervals.Anormalcall isindicated by a steady lampand anintermittent toneat approximately
8-second intervals.
The Tek-CARE®NC110N Nurse Call System includes three basic units, each essential for
operation. These will be discussed individually and are as follows:
• Power&ControlUnit
• Master Station
• CallStations
The use of these basic units, in conjunction with wiring, housings and auxiliary equipment,
make up a complete system.
PK151A, PK152 Power & Control Units
The power & control unit utilizes a transformer which steps down the 120 VAC input to 24
VAC, 30VA,which is then rectified, filtered and regulatedto provide a stable 24VDC for the
rest of the system.
Control circuits are provided to detect the presence of normal or emergency calls and to
providesteady or intermittent voltages tooperate externaldevices with indications as follows:
Normal calls are indicated by a positive voltage applied to Terminal R by the calling remote
station. Emergency calls are indicated by a positive voltage applied to terminal Q by the
calling remote station.
PK800A Secondary Power Supply
Thesecondary power supply accepts a 24VAC input fromthe SS100 transformer. It rectifies,
filters and regulates a +24 VDC output, which is provided on the two terminals labeled “24
VDC.”A+5 VDC output is also available, but is not used in this application.
NC110N Master Stations
The Master Station includes:
• Buzzerforaudiblesignals.
• Annunciator lamps for call indication.
• Additionaloperatingcontrols,includingtoneoffandtonetestswitchesandadditional
emergencyand normal callindicators.

IL381 Tek-CARE®NC110A, NC110N Manual • 7
Copyright©TekToneSound&SignalMfg.,Inc.AllRights Reserved.
System Operating Principle
NC110A Master Stations
TheNC110A’sdesign isbased onthe NC110Nmaster station.TheNC110N’scontrolswitches
have been replaced with relays that have reliable control circuitry, which are operated via the
buttons on the NC110A membrane switch. The NC110A uses an electronic oscillator circuit
to generate call tones via an enclosed 45-ohm speaker.Asimple digital counter keeps track of
tone volume and is advanced by pressing the volume button.
The NC110Aincludes an isolated N/O relay contact for ancillary off-board call handling.An
RC hold circuit keeps the contact closed during off cycles of the call indication LED. For this
reason, the contact will remain closed for a few seconds after call activity at the station has
ended.
SF100N, SF100/2, SF100C, SF101B, SF101N, SF101C, SF102 Call Stations
TheSF100N, SF100/2,SF100C, SF101Cand SF102Call Stationsare fornormal callsthat use
an LED visual indicator.
S.C.R.Q100 forms alatching circuit tomaintain signaling afterthe momentary contactsignal
initiating push button has been released. S.C.R. Q100 is also used to reset the station when
the call is canceled.
Call stations SF101B and SF101N have different features, but function in a similar manner.
SF151N, SF153N, SF155B, SF339 Emergency Stations and SF156B Code Station
TheSF155B Emergency Station is foremergency calls. In the emergencyposition, associated
signallights are disconnectedfrom thenormalsignal terminalsand connected tothe emergency
signal terminals.
Emergency stations SF151N, SF153N and SF339, and code station SF156B have different
features, but function in a similar manner.

8 • IL381 Tek-CARE®NC110A, NC110N Manual Copyright©TekToneSound&SignalMfg.,Inc.AllRights Reserved.
Installation Procedure
Step 1: Read the following instructions concerning system equipment and determine
installation methods before proceeding.
Step 2: Determine equipment location.
Step3: Install wiring.
Step 4: Install housing.
Step5: Check wires.
Step 6: Connect equipment.
Step 7: Check connections.
Equipment Locations
NC110A, NC110N Master Stations: Locate master stations within easy reach of operating
personnel. Do not exceed operating temperature of 10° C–30° C.
SF100C, SF101C, SF102 Call Stations: Locate call stations where convenient for opera-
tion. Calls are placed on the SF100C and SF102 by means of a 6' long call cord switch,
permitting easy operation by seated or prone patients. Calls are placed on the SF101C by
means of a push button located on the station.
SF155B, SF339 Emergency Stations and SF156B Code Station: Locate emergency sta-
tions where convenient for operation.Avoid areas where direct contact with water may
occur. The SF155B includes a 6' long pull cord permitting installation high enough to
provide easy operation by the nurse and by seated or prone patients. The SF155B may be
used without the cord as a pull down actuated switch.
LI150B Duty Stations: Locate duty stations as needed and where convenient for operation.
Location should provide for unobstructed visibility of the call indicator.
LI381CorridorLights: Locate corridor lights in the corridor above or beside the door of the
associated room. Location should provide for unobstructed visibility of the corridor light
in both directions.
LI382, LI382LED Corridor Zone Lights: Locate corridor zone lights in the corridor area
nearest the nurses central monitoring station. Location should provide for unobstructed
visibility of each corridor zone light from the central location.
SF301, SF302 Call Cords: Insert call cord plugs into associated station jacks as indicated
on the stations. Call cords provided are 6' or 10' in length.
PK151A, PK152 Power & Control Units: Locate the PK151A or PK152 and the IH151N
junction box in an accessible area. Do not exceed operating temperature range of 10° C–
30° C. Location should provide for convenient cable runs to remote and master stations.
Cablerun fromthePK151A orPK152 totheNC110N MasterStation mustnotexceed 100'.
PK153Third Priority ConrolUnit:Locate the PK153 inthe same locationas the PK151Aor
PK152Power &Control Unit.
PK800ASecondary Power Supply:Locate the PK800A in an accessible area within 2 feet of
the PK151A or PK152 that it is to be connected to. Do not exceed operating temperature
range of 10°C–30°C. The PK800A is for use in applications that exceed the current load
capacity of the PK151A or PK152 (1 amp). The PK800A allows the current load to be
increased to 3 amps. The FZ151 FuseAssembly must be located between the PK800A
and the PK151A or PK152. See Figure 16 for actual FZ151 connection points.
System Installation –———————————————————

IL381 Tek-CARE®NC110A, NC110N Manual • 9
Copyright©TekToneSound&SignalMfg.,Inc.AllRights Reserved.
SS100 24 VAC 100 VATransformer: For use with the PK800A. Locate the SS100 within 3
feet of the PK800ASecondary Power Supply. Do not exceed operating temperature range
of10°C–30°C.
Wiring Installation
Runwiring conduitfrom corridorlight tocorridor light and terminate atthe PK151Aor PK152
Power& ControlUnit. Limit eachrun to15 corridorlights and 600 feet ofwire. Selectconduit
size to accommodate the following cables:
• 3cond.#18commontoallcallstations(exceptLI150BDutyStations).Add2cond.#18
commonifLI382CorridorZoneLightsareused.
• Run3cond.#18commonfromLI382toPK151AorPK152Power&ControlUnit.
• 1cond.#22selectiveforeachSF155BEmergencyStationnotusedinconjunctionwith
a call station.
• 4cond.#22tooneLI150BDutyStation.Use4cond.#18iffeedingmorethanoneduty
station.Installamaximumof4dutystationspersystem.Ifmoreareneeded,callfactory
forwiringinformation.
StationWiringLayout:
NC110A,NC110NMasterStations:Runcableorconduitdirectlyfromthemasterstation
tothePK151AorPK152Power&ControlUnitandtheIH151NJunctionBox.Include
thefollowing:
• 5 cond. #18
• 1cond. #22for eachSF100C/SF101C/SF102 Call Station.
• 1 cond. #22 for each SF155B Emergency Station not used in conjunction with
a call station.
SF100C,SF101C, SF102 CallStations: Run 4cond. #22 directlyto associated SF155B
Emergency Station. If an emergency station is not used, run cable directly to the
associated corridor light. If more than one call station is used in the same room, all
stations run directly to the emergency station (if used).
SF155B Emergency Stations: Run 4 cond. #22 for each call station associated with the
SF155B.Runcable directlyto associated corridorlight. Ifnocall stationisused, only
3 cond. #22 is needed from the SF155B to the corridor light.
LI150BDutyStations:Run4cond.#22tothePK151AorPK152Power&ControlUnit.
Use 4 cond. #18 if feeding more than one duty station. Install a maximum of 4 duty
stations per system. If more are needed, call factory for wiring information.
PowerWiring:Run conduit and 2 cond. #18 cable from the PK151A or PK152 Power &
ControlUnitandtheIH151NJunctionBoxto117VAC-60cyclepowersource.Donot
connect power.
Refer to Figures 9–10 for typical system wiring and cable sizes.
System Installation

10 • IL381 Tek-CARE®NC110A, NC110N Manual Copyright©TekToneSound&SignalMfg.,Inc.AllRights Reserved.
System Installation
Housing Installation
NC110A Master Station:
TheNC110Aisadesktopunit.LocatethePL116wallplatedirectlybehindthedesktoaccommodate
the NC110A. Mount the wall plate to a four-gang electrical backbox with a three-gang mud ring
(TekTone®part numbers IH353 and IH352 respectively). Connect the NC110Ato the wall plate
usingtheprovided8-wire,RJ-terminatedcable(CA045)andfixed50-wireribboncable(CA046).
Gather extra length in the ribbon cable and tie as shown. See Figure 11 for unit placement.
NC110N Master Station:
Flush Wall Mounting: Provide wall cutout as shown in Figure 5. Fit back box and frame
assembly into prepared opening. Fasten assembly in place using screws. Back box must
beTekTone®OH200 Series.
Surface Wall Mounting: Fasten box and frame assembly to wall through holes provided
in back of box. Use suitable fasteners. Back box must be TekTone®OH300 Series.
Figure 5—Master Panel Housing Chart and Wall Cut-Out Details
Housing Wall Opening
Flush Surface Width (B) Height
OH202 OH302 8.5" 16.25"
OH203 OH303 12.5" 16.25"
OH204 OH304 16.5" 16.25"
OH205 OH305 20.5" 16.25"
16"
B
3.75"
Finished Wall
4" min.
16.25"
B
In masonry walls, install 0.5"×4" wood
fillers at top and bottom of opening for
housing attachment.
B
Finished Floor
66"
16.25"
Figure 6—Ring & Back Box for
Call, Emergency, Code & Duty Stations,
and Corridor & Zone Lights
Install ring with panel mounting holes at top and bottom, as shown.
Figure 7—SS106 Transformer Installation

IL381 Tek-CARE®NC110A, NC110N Manual • 11
Copyright©TekToneSound&SignalMfg.,Inc.AllRights Reserved.
SF100C, SF101C, SF102 Call Stations, SF155B Emergency Station: Install single gang
ring (or single gang ring and double gang box) as shown in Figure 6 for each call and
emergency station in the system. Ring and back box must be UL®approved. Minimum
dimensions of back box must be not less than 4"×4"×1.5". Minimum opening on ring
must be not less than 1.75"×2.75". Minimum clearance from live parts on station to dead
metal parts must be not less than 0.5".
LI150BDutyStations:Install single gang ring (or single gang ring and double gang box) as
shown in Figure 6 for each duty station. Ring and back box must be UL®approved.
Minimum dimensions are the same as for the call/emergency stations listed previously.
LI381 Corridor Lights, LI382 Corridor Zone Lights: Install double gang ring (or double
gangring anddouble gang box)as shownin Figure 6 foreachcorridor lightinsystem. Ring
and back box must be UL®approved. Minimum dimensions of back box must be not less
than 4"×4"×1.5". Minimum opening of ring must be not less than 2.75"×2.75". Minimum
clearance from live parts of station to dead metal parts must be not less than 0.5".
LI382LED Corridor Zone Lights: Install standard one- or two-gang box with one- or two-
gang ring as shown in Figure 6 for each corridor light in system. Ring and back box must
be UL®approved. Minimum clearance from live parts of station to dead metal parts to be
not less than 0.5".
PK151Aor PK152 Power&Control Unit, IH151NJunctionBox: Fasten IH151N Junction
Box to wall using suitable fasteners. Mount PK151Aor PK152 inside junction box.Any
alternatejunction box must be UL®approved. Minimum dimensionsof junction boxmust
be not less than 12"×12"×4". Minimum clearance from live parts to dead metal parts on
housing must be 1".
Install SS106 Transformer in junction box as shown in Figure 7. Do not connect trans-
formerprimarytopowersourceuntilentire installationis completedand checkedfor
shortsandgrounds.
Install transformer connection box as shown in Figure 7. Transformer box must be UL®
approved. Minimum dimensions must be not less than 1.75"×3.75"×1.5". The junction
box, transformer and power & control unit are also available preassembled from the
factory as part number IH151NK.
PK800ASecondaryPowerSupply: Fasten PK800A Secondary Power Supply to wall using
suitable fasteners.
SS10024 VAC100VATransformer:FastenSS100 24VAC 100VATransformer towall using
suitable fasteners. Do not connect transformer primary to power source until entire
installationiscompletedandcheckedforshortsandgrounds.
Wire Checkout
Use an ohmmeter or other continuity checking device to test wires for shorts or grounds. If
shorts or grounds are encountered, find and correct the problem before continuing. Make
sure minimum number of conductors needed for all of the equipment being used in the
system are available.
System Installation

12 • IL381 Tek-CARE®NC110A, NC110N Manual Copyright©TekToneSound&SignalMfg.,Inc.AllRights Reserved.
Wire Connections
Use crimp-style connectors for all wire connections. Do not use wire nuts.
NC110A Master Station: Wire the PL116 Wall Plate as shown in Figure 12.
NC110N Master Station: No internal wiring is necessary for the NC110N Master Station.
SF100C, SF101C, SF102 Call Stations: Connect wires as shown in Figures 9–10.
SF155B Emergency Stations: Connect wires as shown in Figures 9–10.
LI150B Duty Stations: Connect wires as shown in Figures 9–10.
LI381 Corridor Lights, LI382 and LI382LED Corridor Zone Lights: Connect wires as
shown in Figures 9–10.
PK151A, PK152 Power & Control Unit: Connect wires as shown in Figures 9–10. Also
connect secondary from the SS106 Transformer (24 VAC, 30 VA connections) to the
PK151A or PK152 as shown in Figures 9–10. Donotconnecttransformer primary to
powersourceuntilentireinstallationiscompletedand checkedforshortsand grounds.
PK800A Secondary Power Supply: Connect wires as shown in Figure 16.
SS10024VAC 100VATransformer:Connect wires as shown in Figure 16. Donot connect
transformerprimarytopowersourceuntilentireinstallationiscompletedandchecked
forshortsandgrounds.
Connections Checkout
Recheck all connections to equipment. If all wires and connections are satisfactory, connect
primary coil of SS106 Transformer to source of 117 VAC 60 cycles (40 watts max.) and
operation of system can be checked according to System Test Instructions next in this
section.
System Test Instructions
Before proceeding with a system test, all stations should be set to normal conditions as
follows:
NC110AMaster Station: No initialization is necessary.
NC110N Master Station: All push buttons should be in normal OUT position. If depressed,
the TONE OFF button may be released by pressing the button and then releasing it.
SF100N, SF100/2, SF100C, SF102 Call Stations: If the call cord push button has been
pressed, reset the station by pressing the CANCEL button.
SF101N, SF101C Call Stations: If the call button has been pressed, reset the station by
pressing the CANCEL button.
SF153N, SF339 Emergency Stations: If the call/cancel switch is pressed to the IN position,
press the switch again or twist the switch to the OUT position to reset the station.
SF151N,SF155BEmergency Stationsand SF156B Code Station:If the call cord has been
pulled or the switch has been pulled down, reset the station by pushing the switch up.
LI150N, LI150B Duty Stations: Push the TONE OFF switch up.
System Installation

IL381 Tek-CARE®NC110A, NC110N Manual • 13
Copyright©TekToneSound&SignalMfg.,Inc.AllRights Reserved.
System Installation
System Checkout and Testing
SF100N, SF100/2, SF100C, SF101N, SF101C, SF102 Call Stations: Test call stations
one at a time. Initiate a call on each station. Press the button on the end of the call cord for
SF100N,SF100/2,SF100C,SF102 Call Stations.Pressthecallbutton forSF101N,SF101CCall
Stations. Check for operation of the following signals:
• The CALL PLACED lamp on the call station should be illuminated.
• The LI381, LI382 or LI382LED Corridor Light near the room entrance should be
illuminated.
• OntheNC110NMasterStation,thecalllampshouldbeilluminatedandtheassociated
stationselector lamp (marked toidentify the callingstation) should be illuminated. A
slowlyrepeatingaudiblecalltoneshouldbeheard.Thenormalcalltonemaybesilenced
by the TONE OFF button, which should be illuminated to indicate tone silencing.
• OnallLI150BDutyStations,theCALL PLACEDlampshouldbeilluminated,andaslowly
repeating audible call tone should be heard. The normal call tone may be silenced by
the TONE OFF button.
Reset the call at the call station: Press the CANCEL button on SF100N, SF100C, SF102,
SF101N and SF101C stations.All signals should be canceled.
SF151N, SF153N, SF155B, SF339 Emergency Stations and SF156B Code Station: Test
stations one at a time. Initiate a call on each station. Pull the call cord on the SF151N
Emergency Station. Push the switch to the IN position on the SF153N, SF339 Emergency
Stations. Slide the switchto the DOWN positionor pullthe call cordon the SF155BEmergency
Station. Slide the switch to the DOWN position on the SF156B Code Station. Check for
operation of the following signals:
• The CALL PLACED lamp should be flashing
• TheLI381CorridorandLI382/LI382LEDCorridorZoneLightneartheroomentrance
should be flashing.
• OntheNC110NMasterStation,thecalllampshouldbeflashing,theemergencylamp
should be flashing, and the associated station selecter lamp (marked to indentify the
calling station) should be flashing. An intermittent audible call tone should be heard.
Pressing the TONE OFF button must not cancel the emergency call tone.
• OnallLI150BDutyStations,thecalllampshouldbeflashing,andanintermittentaudible
calltoneshouldbeheard.TheTONEOFFbuttonmustnotcanceltheemergencycalltone.

14 • IL381 Tek-CARE®NC110A, NC110N Manual Copyright©TekToneSound&SignalMfg.,Inc.AllRights Reserved.
System Maintenance Instructions—————————————
Figure8—NC110N
Selector Lamp/Switch Lens,
Filter and Lamp Replacement
1
2
3
4
1 – Lens
2 – Filter
3 – 24V Lamp
4 – Switch Knob
Most of the equipment and parts used in the Tek-CARE®NC110N Nurse Call System are not
user serviceable and cannot be replaced or repaired by the end user. Equipment must be
repaired by qualified service personnel only. Parts that are user serviceable are listed in the
following section and their replacement explained.
NC110A Master Stations
Thereare nouser replaceable components on theNC110A. Cleanthe membraneswitch witha
dampclothas needed.Checkfor unintentionalbuttonpresses whichmayoccur during cleaning.
NC110N Master Stations
Refer to Figure 8 to identify replacement parts.Afull list of replacement parts and numbers
appears in the Replacement Parts section.
Selector Lamp Lens Replacement:
• Remove lens by squeezing top and bottom together and pulling away from panel.
• Replacewithsamecolorlensbypushingnewlenstowardspanel.Thelensshouldsnap
into place on the selector lamp/switch knob with a noticeable click.
Selector Lamp Filter Identification:
• Remove lens by squeezing top and bottom together and pulling away from panel.
• Remove white filter by lifting it out of the selector lamp/switch knob.
• Identifyfilterbyroomnumberorothermeansusingdrytransferlettering,labels,orother
similarmethods.Besureidentifiedfilterisreplacedinknobsothatletteringisreadable
right side up.
• Replace lens by pushing it towards panel. The lens should snap into place on the
selector lamp/switch knob with a noticeable click.
Defective Lamp Replacement:
• Remove lens and filter by methods described above.
• Usingneedle-nosedpliers,tweezersorsimilartool,pulllampoutofsocketbygripping
lamp at sides and moving it from side to side as it is pulled away from the panel.
WARNING:Donotsqueezetootightly,oritwillbreak.
• Replace lamp by holding with tool and pushing into socket. Be sure lamp is turned so
that the base is lined up with the slot in the socket. Lamp must be pushed in below the
levelofthefilter.

IL381 Tek-CARE®NC110A, NC110N Manual • 15
Copyright©TekToneSound&SignalMfg.,Inc.AllRights Reserved.
System Maintenance Instructions
• Push test button to make sure lamp has been placed in socket properly. If lamp does
not light, try pressing more firmly into socket. If lamp still does not light, repeat steps
above with new lamp until one works properly.
• Replace lens and filter in selector lamp/switch knob as previously described.
PK151A, PK152 Power & Control Units
Thereare no userserviceable parts inthe PK151A andPK152 Power &Control Units. Notify
qualified service personnel for repair or replacement.
PK153 Third Priority Control Unit
Thereare no user serviceable parts in the PK153 Third PriorityControl Unit. Notifyqualified
service personnel for repair or replacement.
PK800A Secondary Power Supply
The only user serviceable part is a 4A, 125 VAC fuse (1.25"×0.25").
• DisconnectpowertotheassociatedSS100transformer.IftheSS100ishardwired,locatethe
associated breaker and turn it off. If a means cannot be established to remove power to the
SS100, then contact qualified service personnel and do not proceed further. The SS106
poweringtheassociatedPK151AorPK152shouldalsobepowereddowninthesamefashion.
• Oncepowerhasbeendisconnected, firmly grasptheblackfuseholder knob onthesideof
thePK800A,pushinandrotateitcounterclockwise.Pulloutontheknobtoexposethefuse.
• Removethe fuseand insertthe newfuse. Reinsertfuse holderknob. Restorepower to
the system.
For repair or replacement of any other parts, contact qualified service personnel. A list of
replacement parts and numbers appears in the Replacements Parts section.
FZ151 In-Line Fuse Holder
The only user serviceable part is a 4A, 125 VAC fuse (1.25"×0.25").
• DisconnectpowertotheassociatedSS100transformer.IftheSS100ishardwired,locate
theassociatedbreakerandturnitoff.Ifameanscannotbeestablishedtoremovepower
totheSS100,thencontactqualifiedservicepersonnelanddonotproceedfurther. The
SS106poweringtheassociatedPK151AorPK152shouldalsobepowereddowninthe
same fashion.
• Once power has been disconnected, firmly grasp both ends of the fuse holder, push
in and rotate in opposite directions. Pull out on both ends to expose the fuse.
• Removethefuse andinsertthe new fuse.Putfuse holderbacktogether and verifythat
both pieces are interlocked. Restore power to the system.
For repair or replacement of any other parts, contact qualified service personnel. A list of
replacement parts and numbers appears in the Replacements Parts section.
SF100N, SF100/2, SF100C, SF102 Call Stations
The only user serviceable part on these stations are the call cords. To replace:
• Toremovethecallcord,gripendofplugfirmlyandpullstraightawayfromcallstation.
• To replace the call cord, hold by end of plug and push straight into call cord jack on
call station.

16 • IL381 Tek-CARE®NC110A, NC110N Manual Copyright©TekToneSound&SignalMfg.,Inc.AllRights Reserved.
System Maintenance Instructions
• To test, push the button at the end of the call cord. The CALL PLACED lamp should
illuminate. Push the CANCEL button to cancel the call.
For repair or replacement of any other parts, contact qualified service personnel. A list of
replacement parts and numbers appears in the Replacements Parts section.
SF101N, SF101C Call Stations
There are no user servicable parts on the SF101N, SF101C Call Staions. Notify qualified
service personnel for repair department
SF151N, SF153N, SF155B, SF339 Emergency Stations and SF156B Code Station
There are no user serviceable parts on the SF151N, SF153N, SF155N, SF339 Emergency or
SF156B Code Stations. Notify qualified service personnel for repair or replacement.
LI150N, LI150B Duty Stations
There are no user serviceable parts on the LI150N, LI150B Duty Stations. Notify qualified
service personnel for repair or replacement.
LI381 Corridor and LI382 Corridor Zone Lights
• To remove cover, grip firmly by sides, and pull cover away from plate.
• To remove bulb, make sure that no call is placed, then push bulb in towards plate. Turn
bulb counterclockwise and pull bulb out of socket. On LI382, remove red bulb cover
before removing bulb.
• To replace bulb, hold by glass part and push metal end into socket. When resistance is
encountered, turn bulb clockwise until it falls into socket. (Metal part should be below
the top of the socket.) Push bulb again and turn clockwise until bulb stops turning, and
then release. On LI382, replace red bulb cover. Be sure to place bulb cover over the same
bulb from which it was removed.
• To test light, place a call at the associated station. If light still does not work, repeat steps
above until corridor light and/or corridor zone lights function properly.
• To replace cover, reverse instructions for removal.
Replacement Parts
Part No. Description Used For
FZ010 4A Fuse PK800ASecondary Power Supply and FZ151 FuseAsst.
LI014 24VLamp NC110N Control and Selector Module Lamps
LI028 28VLamp LI381, LI382CorridorLights
RP021 BlankFilter NC110N Selector Button Label
RP022 Orange Lens NC110N Tone Test Button and Selector Buttons
RP024 GreenLens NC110NToneOffButton
RP027 ClearLens NC110N EmergencyButton
RP028 Yellow Lens NC110NCallButton
RP037A RedBulb Cover LI382 CorridorZone Lights
SF301 CallCord SF100N,SF100/2,SF100C, SF102 CallStations
SF302 CallCord Dual SF100N, SF100/2,SF100C,SF102CallStations
This manual suits for next models
1
Table of contents
Other Alpha Communications Control System manuals