42 Central Drive
Farmingdale, NY 11735-1202
Phone: (631) 777-5500
Fax: (631) 777-5599
Operation, Installation and Service Manual
®
Website:
www.AlphaCommunications.com
Email:
info@alphacommunications.com
TOLL-FREE Technical #:
1-800-666-4800
APPLICA TION: The Tek-CARE® NC1 10A, NC110N V isual Nurse Call Signaling System
is designed for nursing home or individual ward use. The nurse call system provides
audible and visual indication of all calls originating in the system, including both normal
and emergency calls. The NC110A, NC110N Master Station contains lamps for call
indication, as well as tone-off switch and an audible tone signaling device.
TekTone® Sound & Signal Mfg., Inc., All rights reserved.
No part of this publication may be copied without the express written permission of T ekT one® 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
commitment by T ekT one® Sound & Signal Mfg., Inc. T ekT one® Sound & Signal Mfg., Inc. assumes no responsibility or liability for any
errors or inaccuracies that may appear in this documentation.
T ekTone, the T ekTone logo, T ek-Call, T ek-Care, Tek-Check-In, T ek-Com, T ek-Digicare, Tek-Door , Tek-Entry III, T ek-Guard, T ek-Micro,
T ek-Micro II, Tek-MMARS II, T ekNIOS, TekNIOS II, T ek-Paging, T ek-Phone, Tek-Safe, T ek-Select II, T ek-Sentry, T ek-Sound, T ekStatus, 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.
This section provides complete operating instruction for all T ek-CARE® NC110N and NC1 10A
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:
•Rapid flashing of the associated station selector lamp, which is marked to indicate origin
of call.
•Rapid flashing of call lamp and emergency lamp.
•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:
•Steady illumination of the associated station selector lamp which is marked to indicate
origin of call.
•Steady illumination of call lamp.
•Slowly pulsing audible tone. The audible call signal may be canceled for normal calls
by pressing the TONEOFF button. The TONEOFF button will then illuminate to indicate
tone silenced. Pressing the TONEOFF button when illuminated will reset the call tone.
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
Press the TONETEST button. A tone signal should be heard at the master station.
Test Station Selector Lamps:
Press the
LAMPTEST 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. There are no user replaceable parts on the NC110N Master Station other than
the station selector lamps and lenses.
•If a malfunction occurs during a call and causes a lack of indication of call origin on the
master station, first determine the origin of the call by observing which corridor light
and corridor zone light is illuminated, then inform qualified service personnel.
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
(T ekTone® part number LB516). Apply room-identifying labels between the dashed lines 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 CALLPLACED
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 CANCELbutton. Indicator will go off. If the call cord is pulled from
its receptacle, a call will be placed automatically and cannot be canceled until the 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 CALLbutton. The CALLPLACED lamp will illuminate to indicate call
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 CALLPLACED lamp will flash. W ait for the nurse.
Cancel a Call: Push the call/cancel switch up, press the call/cancel button, or twist the
push button. The CALLPLACED lamp will go off.
Figure 4—Emergency, Code, Call & Duty Station Control Locations
SF151N Emergency
Station
SF153N Emergency
Station
SF101N Call
Station
SF155B Emergency
Station
SF101C Call
Station
SF339 Emergency
Station
LI150N Duty
Station
SF156B Code
Station
LI150B Duty
Station
Tone Off
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.
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.
Refer to Figure 4 for locations, names, and functions of controls and indicators.
LI381 Corridor Lights
Emergency Calls: Emergency calls are indicated by a flashing
CALLPLACED lamp and a
rapidly pulsing audible tone. The audible tone signal cannot be silenced by the TONEOFF
switch.
Normal Calls: Normal calls are indicated by steady illumination of the CALLPLACED lamp and
a slowly pulsing audible tone. Push the TONEOFF switch down to silence the audible tone
signal. Push the TONEOFF switch up to turn the audible tone signal on.
Improper Operation: If the call station does not operate as described, contact qualified service
personnel. There are no user serviceable parts on the LI150N and LI150B Duty Stations.
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
Zone Light includes four indicator LEDs: two clear normal call indicator LEDs that operate 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.
Concurrent Emergency and Normal Calls: If an emergency and normal call are placed in the
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
normal call will maintain a steady illumination.
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
other than lamps and red bulb cover. There are no user serviceable parts on the LI382LED
Corridor Zone Lights.
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. A normal call is indicated by a steady lamp and an intermittent tone at approximately
8-second intervals.
The T ek-CARE® NC110N Nurse Call System includes three basic units, each essential for
operation. These will be discussed individually and are as follows:
•Power & Control Unit
•Master Station
•Call Stations
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
V AC, 30 VA, which is then rectified, filtered and regulated to provide a stable 24 VDC for the
rest of the system.
Control circuits are provided to detect the presence of normal or emergency calls and to
provide steady or intermittent voltages to operate external devices with indications as follows:
Normal calls are indicated by a positive voltage applied to T erminal 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
The secondary power supply accepts a 24 VAC input from the 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:
•Buzzer for audible signals.
•Annunciator lamps for call indication.
•Additional operating controls, including tone off and tone test switches and additional
emergency and normal call indicators.
The NC110A’ s design is based on the NC110N master station. The NC110N’ s control switches
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. A simple digital counter keeps track of
tone volume and is advanced by pressing the volume button.
The NC110A includes 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.
The SF100N, SF100/2, SF100C, SF101C and SF102 Call Stations are for normal calls that use
an LED visual indicator.
S.C.R. Q100 forms a latching circuit to maintain signaling after the momentary contact signal
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
The SF155B Emergency Station is for emergency calls. In the emergency position, associated
signal lights are disconnected from the normal signal terminals and connected to the emergency
signal terminals.
Emergency stations SF151N, SF153N and SF339, and code station SF156B have different
features, but function in a similar manner.
NC110A, NC110N Master St ations: 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.
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.
LI381 Corridor Lights: 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.
Cable run from the PK151A or PK152 to the NC110N Master Station must not exceed 100'.
PK153 Third Priority Conrol Unit: Locate the PK153 in the same location as the PK151A or
PK152 Power & Control Unit.
PK800A Secondary 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 Fuse Assembly must be located between the PK800A
and the PK151A or PK152. See Figure 16 for actual FZ151 connection points.
SS100 24 V AC 100 V A T ransformer: For use with the PK800A. Locate the SS100 within 3
feet of the PK800A Secondary Power Supply . Do not exceed operating temperature range
of 10°C–30°C.
Run wiring conduit from corridor light to corridor light and terminate at the PK151A or PK152
Power & Control Unit. Limit each run to 15 corridor lights and 600 feet of wire. Select conduit
size to accommodate the following cables:
•3 cond. #18 common to all call stations (except LI150B Duty Stations). Add 2 cond. #18
common if LI382 Corridor Zone Lights are used.
•Run 3 cond. #18 common from LI382 to PK151A or PK152 Power & Control Unit.
•1 cond. #22 selective for each SF155B Emergency Station not used in conjunction with
a call station.
•4 cond. #22 to one LI150B Duty Station. 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.
Station W iring Layout:
NC110A, NC110N Master Stations: Run cable or conduit directly from the master station
to the PK151A or PK152 Power & Control Unit and the IH151N Junction Box. Include
the following:
•5 cond. #18
•1 cond. #22 for each SF100C/SF101C/SF102 Call Station.
•1 cond. #22 for each SF155B Emergency Station not used in conjunction with
a call station.
SF100C, SF101C, SF102 Call Stations: Run 4 cond. #22 directly to 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. Run cable directly to associated corridor light. If no call station is used, only
3 cond. #22 is needed from the SF155B to the corridor light.
LI150B Duty Stations: Run 4 cond. #22 to the PK151A or PK152 Power & Control Unit.
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.
Power Wiring: Run conduit and 2 cond. #18 cable from the PK151A or PK152 Power &
Control Unit and the IH151N Junction Box to 117 VAC - 60 cycle power source. Do not
connect power.
Refer to Figures 9–10 for typical system wiring and cable sizes.
The NC110A is a desktop unit. Locate the PL116 wall plate directly behind the desk to accommodate
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 NC110A to the wall plate
using the provided 8-wire, RJ-terminated cable (CA045) and fixed 50-wire ribbon cable (CA046).
Gather extra length in the ribbon cable and tie as shown. See Figure 11 for unit placement.
NC110N Master Station:
Flush W all 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
be Te kTone
®
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 T ekT one® OH300 Series.
Figure 5—Master Panel Housing Chart and Wall Cut-Out Details
4" min.
Finished Wall
16.25"
B
66"
Finished Floor
In masonry walls, install 0.5"×4" wood
fillers at top and bottom of opening for
housing attachment.
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".
LI150B Duty Stations: 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
gang ring and double gang box) as shown in Figure 6 for each corridor light in 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 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".
PK151A or PK152 Power & Control Unit, IH151N Junction Box: Fasten IH151N Junction
Box to wall using suitable fasteners. Mount PK151A or PK152 inside junction box. Any
alternate junction box must be UL® approved. Minimum dimensions of junction box must
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-
former primary to power source until entire installation is completed and checked for
shorts and grounds.
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.
®
PK800A Secondary Power Supply: Fasten PK800A Secondary Power Supply to wall using
SS100 24 V AC 100V A T ransformer: Fasten SS100 24 VAC 100 V A T ransformer to wall using
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.
suitable fasteners. Do not connect transformer primary to power source until entire
installation is completed and checked for shorts and grounds.
IL381 Tek-CARE® NC110A, NC110N Manual • 11
Page 16
System Installation
Wire Connections
Use crimp-style connectors for all wire connections. Do not use wire nuts.
NC110A Master St ation: Wire the PL116 Wall Plate as shown in Figure 12.
NC110N Master S tation: No internal wiring is necessary for the NC1 10N 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. Do not connect transformer primary to
power source until entire installation is completed and checked for shorts and grounds.
PK800A Secondary Power Supply: Connect wires as shown in Figure 16.
SS100 24 V AC 100 V A Transformer: Connect wires as shown in Figure 16. Do not connect
transformer primary to power source until entire installation is completed and checked
for shorts and grounds.
Connections Checkout
System Test Instructions
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.
Before proceeding with a system test, all stations should be set to normal conditions as
follows:
NC110A Master S t ation: No initialization is necessary .
NC110N Master Station: All push buttons should be in normal OUT position. If depressed,
the TONEOFFbutton 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, SF155B Emergency Stations and SF156B Code S tation: 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 TONEOFFswitch up.
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. Press the call button for SF101N, SF101C Call
Stations. Check for operation of the following signals:
•The CALLPLACED lamp on the call station should be illuminated.
•The LI381, LI382 or LI382LED Corridor Light near the room entrance should be
illuminated.
•On the NC110N Master Station, the call lamp should be illuminated and the associated
station selector lamp (marked to identify the calling station) should be illuminated. A
slowly repeating audible call tone should be heard. The normal call tone may be silenced
by the TONEOFFbutton, which should be illuminated to indicate tone silencing.
•On all LI150B Duty Stations, the CALLPLACED lamp should be illuminated, and a slowly
repeating audible call tone should be heard. The normal call tone may be silenced by
the TONEOFF button.
Reset the call at the call station: Press the CANCELbutton on SF100N, SF100C, SF102,
SF101N and SF101C stations. All signals should be canceled.
SF151N, SF153N, SF155B, SF339 Emergency Stations and SF156B Code Station: T est
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 switch to the DOWN position or pull the call cord on the SF155B Emergency
Station. Slide the switch to the DOWNposition on the SF156B Code Station. Check for
operation of the following signals:
•The CALLPLACED lamp should be flashing
•The LI381 Corridor and LI382/LI382LED Corridor Zone Light near the room entrance
should be flashing.
•On the NC110N Master Station, the call lamp should be flashing, the emergency lamp
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 TONEOFF button must not cancel the emergency call tone.
•On all LI150B Duty Stations, the call lamp should be flashing, and an intermittent audible
call tone should be heard. The TONEOFF button must not cancel the emergency call tone.
Most of the equipment and parts used in the T ek-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
There are no user replaceable components on the NC110A. Clean the membrane switch with a
damp cloth as needed. Check for unintentional button presses which may occur during cleaning.
NC110N Master Stations
Refer to Figure 8 to identify replacement parts. A full 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.
•Replace with same color lens by pushing new lens towards panel. The lens should snap
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.
•Identify filter by room number or other means using dry transfer lettering, labels, or other
similar methods. Be sure identified filter is replaced in knob so that lettering is readable
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.
•Using needle-nosed pliers, tweezers or similar tool, pull lamp out of socket by gripping
lamp at sides and moving it from side to side as it is pulled away from the panel.
WARNING: Do not squeeze too tightly, or it will break.
•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
level of the filter.
•Push test button to make sure lamp has been placed in socket properly. If lamp does
•Replace lens and filter in selector lamp/switch knob as previously described.
PK151A, PK152 Power & Control Units
There are no user serviceable parts in the PK151A and PK152 Power & Control Units. Notify
qualified service personnel for repair or replacement.
PK153 Third Priority Control Unit
There are no user serviceable parts in the PK153 Third Priority Control Unit. Notify qualified
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").
•Disconnect power to the associated SS100 transformer. If the SS100 is hard wired, locate the
•Once power has been disconnected, firmly grasp the black fuse holder knob on the side of
•Remove the fuse and insert the new fuse. Reinsert fuse holder knob. Restore power to
not light, try pressing more firmly into socket. If lamp still does not light, repeat steps
above with new lamp until one works properly.
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
powering the associated PK151A or PK152 should also be powered down in the same fashion.
the PK800A, push in and rotate it counterclockwise. Pull out on the knob to expose the fuse.
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").
•Disconnect power to the associated SS100 transformer. If the SS100 is hard wired, locate
the 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 powering the associated PK151A or PK152 should also be powered down in the
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.
•Remove the fuse and insert the new fuse. Put fuse holder back together and verify that
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:
•To remove the call cord, grip end of plug firmly and pull straight away from call station.
•To replace the call cord, hold by end of plug and push straight into call cord jack on
call station.
•To test, push the button at the end of the call cord. The CALLPLACEDlamp should
illuminate. Push the CANCELbutton 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
•T o 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.
•T o 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.
•T o replace cover , reverse instructions for removal.
Replacement Parts
Part No.DescriptionUsed For
FZ0104A FusePK800A Secondary Power Supply and FZ151 Fuse Asst.
LI01424V LampNC110N Control and Selector Module Lamps
LI02828V LampLI381, LI382 Corridor Lights
RP021Blank FilterNC110N Selector Button Label
RP022Orange LensNC110N Tone Test Button and Selector Buttons
RP024Green LensNC110N T one Of f Button
RP027Clear LensNC110N Emergency Button
RP028Yellow LensNC110N Call Button
RP037ARed Bulb CoverLI382 Corridor Zone Lights
SF301Call CordSF100N, SF100/2, SF100C, SF102 Call Stations
SF302Call Cord DualSF100N, SF100/2, SF100C, SF102 Call Stations
1. Main supply circuit, connect to 117 VAC, 60Hz (40 watts max).
Use #18 gauge wire minimum. SS106 transformer rating is 24
VAC, 30V A maximum.
2. Terminal identifications shown are not in actual order.
3. All common wires are #18 gauge. All other wires are #22
gauge.
4. The secondary PK151A or PK152 uses terminals P (power to
second master) and N (common) only. All other functions are
supplied by the primary PK151A or PK152.