Philips VidQuad LTC 2372 User manual

LTC 2372, LTC 2375
LTC 2376, LTC 2377
VidQuad®DigitalVideo Processors
Installation Instructions
Philips
Communication,
Security & Imaging
Eng
B Series

2

3
IMPORTANT SAFEGUARDS
1. Read Instructions - All the safety and operating instructions should be read
before the unit is operated.
2. Retain Instructions - The safety and operating instructions should be
retained for future reference.
3. Heed Warnings - All warnings on the unit and in the operating instructions
should be adhered to.
4. Follow Instructions - All operating and use instructions should be followed.
5. Cleaning - Unplug the unit from the outlet before cleaning. Do not use
liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning.
6. Attachments - Do not use attachments not recommended by the product
manufacturer as they may cause hazards.
7. Water and Moisture - Do not use this unit near water - for example, in a
wet basement, near a swimming pool, in an unprotected outdoor
installation, or in any area which is classified as a wet location.
8. Accessories - Do not place this unit on an unstable stand, tripod, bracket,
or mount. The unit may fall, causing serious injury to a person and serious
damage to the unit. Use only with a stand, tripod, bracket, or mount
recommended by the manufacturer, or sold with the product. Any
mounting of the unit should follow the manufacturer’s instructions, and
should use a mounting accessory recommended by the manufacturer.
An appliance and cart combination should be moved with care.
Quick stops, excessive force, and uneven surfaces may cause the appliance
and cart combination to overturn.
9. Ventilation - Openings in the enclosure, if any, are provided for ventilation,
to ensure reliable operation of the unit, and to protect it from overheating.
These openings must not be blocked or covered. This unit should not be
placed in a built-in installation unless proper ventilation is provided or the
manufacturer’s instructions have been adhered to.
10. Power Sources - This unit should be operated only from the type of power
source indicated on the marking label. If you are not sure of the type of
power supply you plan to use consult your dealer or local power company.
For units intended to operate from battery power or other sources, refer to
the operating instructions.
11. Grounding or Polarization - This unit may be equipped with a polarized
alternating-current line plug (a plug having one blade wider than the other).
This plug will fit into the power outlet only one way. This is a safety
feature. If you are unable to insert the plug fully into the outlet, try
reversing the plug. If the plug should still fail to fit, contact your electrician
to replace your obsolete outlet. Do not defeat the safety purpose of the
polarized plug.
Alternately, this unit may be equipped with a 3-wire grounding-type plug, a
plug having a third (grounding) pin. This plug will only fit into a
grounding-type power outlet. This is a safety feature. If you are unable to
insert the plug into the outlet, contact your electrician to replace your
obsolete outlet. Do not defeat the safety purpose of the grounding-type
plug.
12. Power Cord Protection - Power supply cords should be routed so that they
are not likely to be walked on or pinched by items placed upon or against
them, paying particular attention to cords and plugs, convenience
receptacles, and the point where they exit from the appliance.
13. Power Lines - An outdoor system should not be located in the vicinity of
overhead power lines or other electric light or power circuits or where it can
fall into such power lines or circuits. When installing an outdoor system,
extreme care should be taken to keep from touching such power lines or
circuits as contact with them might be fatal. U.S.A. models only - refer to the
National Electrical Code Article 820 regarding installation of CATV systems.
14. Overloading - Do not overload outlets and extension cords as this can result
in a risk of fire or electric shock.
15. Object and Liquid Entry - Never push objects of any kind into this unit
through openings, as they may touch dangerous voltage points or short out
parts that could result in a fire or electric shock. Never spill liquid of any
kind on the unit.
16. Servicing - Do not attempt to service this unit yourself as opening or
removing covers may expose you to dangerous voltage or other hazards.
Refer all servicing to qualified service personnel.
17. Damage Requiring Service - Unplug the unit from the outlet and refer
servicing to qualified service personnel under the following conditions:
a. When the power supply cord or plug is damaged.
b. If liquid has been spilled or objects have fallen into the unit.
c. If the unit has been exposed to water and/or inclement weather (rain,
snow, etc.).
d. If the unit does not operate normally by following the operating
instructions. Adjust only those controls that are covered by the
operating instructions, as an improper adjustment of other controls
may result in damage and will often require extensive work by a
qualified technician to restore the unit to its normal operation.
e. If the unit has been dropped or the cabinet has been damaged.
f. When the unit exhibits a distinct change in performance—this
indicates a need for service.
18. Replacement Parts - When replacement parts are required, be sure the
service technician has used replacement parts specified by the manufacturer
or have the same characteristics as the original part. Unauthorized
substitutions may result in fire, electric shock, or other hazards.
19. Safety Check - Upon completion of any service or repairs to this unit, ask
the service technician to perform safety checks to determine that the unit is
in proper operating condition.
20. Coax Grounding - If an outside cable system is connected to the unit, be
sure the cable system is grounded. U.S.A. models only—Section 810 of the
National Electrical Code, ANSI/NFPA No.70-1981, provides information
with respect to proper grounding of the mount and supporting structure,
grounding of the coax to a discharge unit, size of grounding conductors,
location of discharge unit, connection to grounding electrodes, and
requirements for the grounding electrode.
21. Lightning - For added protection of this unit during a lightning storm, or
when it is left unattended and unused for long periods of time, unplug it
from the wall outlet and disconnect the cable system. This will prevent
damage to the unit due to lightning and power line surges.
FCC & DOC INFORMATION
(U.S.A. and Canadian Models Only)
WARNING - This equipment has been tested and found to comply with the
limits for a Class A digital device, pursuant to Part 15 of the FCC Rules and
ICES-003 of Industry Canada. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and radiates radio
frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at
his own expense. Intentional or unintentional changes or modifications not
expressly approved by the party responsible for compliance shall not be made.
Any such changes or modifications could void the user’s authority to operate the
equipment.
If necessary, the user should consult the dealer or an experienced radio/television
technician for corrective action . The user may find the following booklet
prepared by the Federal Communications Commission helpful: “How to
Identify and Resolve Radio-TV Interference Problems.” This booklet is
available from the U.S. Government Printing Office, Washington, DC 20402,
Stock No.004-000-00345-4.
For additional information or to speak to a representative,
please contact the Philips Communication, Security & Imaging
location nearest you:
The Americas: 1 800 326 3270
Europe & Middle East: [phone]
Asia Pacific Region: [phone]
or visit our Web site at www.philipscsi.com.
Warning: This is a Class A product. In a domestic environment, this
product may cause radio interference, in which case the user may be
required to take adequate measures.

4
SAFETY PRECAUTIONS
This label may appear on the bottom of the unit due to space
limitations.
The lightning flash with an arrowhead symbol within
an equilateral triangle is intended to alert the user to
the presence of uninsulated "dangerous voltage" within
the product's enclosure that may be of sufficient
magnitude to constitute a risk of electric shock to
persons.
The exclamation point within an equilateral triangle is
intended to alert the user to presence of important
operating and maintenance (servicing) instructions in
the literature accompanying the appliance.
Attention: Installation should be performed by
qualified service personnel only in accordance with the
National Electrical Code or applicable local codes.
Power Disconnect. Units with or without ON-OFF
switches have power supplied to the unit whenever the
power cord is inserted into the power source; however,
the unit is operational only when the ON-OFF switch
is in the ON position. The power cord is the main
power disconnect for all units.
SECURITE
En raison d’une limitation de la place disponible, il est possible
que cette étiquette soit apposée sur le dessous de l’appareil.
L’éclair fléché dans un triangle équilatéral avertit
l’utilisateur de la présence d’une “tension dangereuse” non
isolée à l’intérieur de l’appareil et d’une valeur suffisante
pour présenter un risque d’électrocution aux personnes.
Le point d’exclamation contenu dans un triangle
équilatéral avertit l’utilisateur de la présence de
consignes d’utilisation et de maintenance importantes
dans la documentation qui accompagne l’appareil.
Attention.L’installation ne doit être effectuée que par
un personnel technique qualifié conformément à la
réglementation du Code Électrique National ou à la
réglementation locale pertinente.
Disjonction de l’alimentation. Les appareils avec ou sans
commutateurs ON-OFF sont alimentés à chaque fois
que le cordon d’alimentation est branché à la source
d’alimentation; toutefois, les appareils disposant de
commutateurs ON-OFF ne fonctionnent que lorsque le
commutateur ON-OFF est dans la position ON. Le
cordon d’alimentation constitue le moyen de disjonction
de l’alimentation principale de tous les appareils.
CAUTION: TO REDUCE THE RISK OF
ELECTRICAL SHOCK, DO NOT OPEN
COVERS. NO USER SERVICEABLE PARTS
INSIDE. REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
WARNING
TO PREVENT FIRE OR SHOCK HAZARD, DO
NOT EXPOSE UNITS NOT SPECIFICALLY
DESIGNED FOR OUTDOOR USE TO RAIN OR
MOISTURE.
ATTENTION
RISQUE D’ÉLECTROCUTION.
NE PAS OUVRIR !
DANGER : POUR ÉVITER TOUT RISQUE
D’ÉLECTROCUTION, VEUILLEZ NE PAS
OUVRIR LE BOÎTIER. IL N’Y A PAS DE
PIÈCES REMPLAÇABLES PAR L’UTILISATEUR
À L’INTÉRIEUR DU BOÎTIER. POUR TOUTE
MAINTENANCE, VEUILLEZ VOUS ADRESSER
À UN TECHNICIEN SPÉCIALISÉ.
ATTENTION
POUR ÉVITER TOUT RISQUE
D’ÉLECTROCUTION OU D’INCENDIE,
VEUILLEZ NE PAS EXPOSER À LA PLUIE OU
À L’HUMIDITÉ UN APPAREIL NON CONÇU
POUR UNE UTILISATION EXTÉRIEURE.

5
SICHERHEITSHINWEISE
Dieses Schild kann aus Platzgründen an der Unterseite des
Geräts angebracht sein.
Das Blitzsymbol im gleichseitigen Dreieck soll den
Benutzer auf nicht isolierte „gefährliche Spannung“ im
Produkt hinweisen, die ausreichend stark sein kann,
um die Gefahr von elektrischen Schlägen für
Menschen darzustellen.
Das Ausrufungszeichen im gleichseitigen Dreieck soll
den Benutzer auf wichtige Bedienungs- und
Wartungsanweisungen in der Dokumentation
hinweisen, die dem Gerät beiliegt.
Achtung: Die Installation darf nur von qualifiziertem
Wartungspersonal gemäß dem National Electrical
Code oder den gültigen örtlichen Vorschriften
durchgeführt werden.
Abtrennen der Spannungsversorgung: Die
Spannungsversorgung zu Geräten mit und ohne
Ein/Aus-Schalter ist hergestellt, wenn das Netzkabel an
eine Netzsteckdose angeschlossen ist. Das Gerät ist
jedoch nur betriebsbereit, wenn der Ein/Aus-Schalter
eingeschaltet ist. Bei allen Geräten erfolgt das Abtrennen
der Spannungsversorgung über das Netzkabel.
SEGURIDAD
Esta etiqueta puede aparecer en la parte inferior de la unidad
debido a limitaciones de espacio.
El símbolo de flecha en forma de rayo situado dentro
de un triángulo equilátero pretende alertar al usuario
de la presencia de "voltaje peligroso" sin aislamiento
dentro de la caja del producto, el cual podría resultar
de una magnitud suficiente como para presentar un
riesgo de descarga eléctrica para las personas.
El punto de exclamación dentro de un triángulo equilátero
pretende alertar al usuario de la existencia de instrucciones
de funcionamiento y mantenimiento (reparación) en la
documentación suministrada con el aparato.
Atención: La instalación debe realizarla personal
cualificado en cumplimiento estricto del código
eléctrico nacional (en el caso de los EE.UU.) o de los
códigos locales aplicables.
Para Desconectar la Alimentación: Unidades no
equipadas con interruptores ON/OFF, son alimentadas
cuando el cable de alimentación es conectado a la
corriente eléctrica. Las unidades equipadas con
interruptores son alimentadas de igual forma, pero
adicionalmente requieren que el interruptor esté
posicionado en ON. El cable de alimentación es el
medio principal de desconexión del equipo.
VORSICHT
NICHT ÖFFNEN!
ELEKTRISCHE SPANNUNG.
VORSICHT: DAS GEHÄUSE ZUR
VERMEIDUNG VON ELEKTRISCHEN
SCHLÄGEN NICHT ÖFFNEN. DAS GERÄT
ENTHÄLT KEINE VOM BENUTZER ZU
WARTENDEN TEILE. REPARATUREN NUR
VON FACHPERSONAL AUSFÜHREN LASSEN.
WARNUNG
ZUR VERMEIDUNG VON FEUER UND
ELEKTRISCHEN SCHLÄGEN DAS GERÄT
NICHT REGEN ODER FEUCHTIGKEIT
AUSSETZEN.
PRECAUCIÓN
RIESGO DE DESCARGA ELÉCTRICA
¡NO ABRIR!
PRECAUCIÓN: PARA REDUCIR EL RIESGO
DE DESCARGA ELÉCTRICA, NO ABRA LAS
TAPAS. EN EL INTERIOR NO HAY NINGÚN
COMPONENTE REPARABLE POR EL USUARIO.
LAS REPARACIONES DEBE REALIZARLAS
PERSONAL CUALIFICADO.
AVISO
PARA IMPEDIR EL RIESGO DE INCENDIO O
DESCARGA, NO EXPONGA EL APARATO A
LLUVIA O HUMEDAD

6
VEILIGHEIDSMAATREGELEN
U vindt dit etiket aan de onderzijde van het apparaat indien
daarvoor elders geen plaats is.
Het symbool 'Bliksemflits met pijlkop' in een
gelijkzijdige driehoek wijst de gebruiker op de
aanwezigheid in de kast van het apparaat van niet-
geïsoleerde spanningen die voldoende sterk zijn om
het gevaar van elektrische schokken op te leveren.
Het uitroepteken in een gelijkzijdige driehoek maakt
de gebruiker attent op de aanwezigheid in de bij het
apparaat behorende documentatie van belangrijke
aanwijzingen voor bediening en onderhoud.
Let op: Het apparaat mag uitsluitend door bevoegde
technici geïnstalleerd worden en wel in overeenstemming
met de National Electrical Code of de daarvoor
plaatselijk geldende richtlijnen.
Afsluiten voeding. Apparaten met of zonder
ON-OFF-schakelaar krijgen voeding zodra het
netsnoer in de wandcontactdoos wordt gestoken; het
apparaat is echter alleen operationeel als de ON-OFF-
schakelaar op ON staat. Het netsnoer kan bij alle
apparaten worden gebruikt om deze uit te schakelen.
SICUREZZA
Per limitazioni di spazio, questa etichetta potrebbe essere affissa
alla base dell’unità.
Il simbolo triangolare di un fulmine con la punta a
freccia intende mettere in allerta l’utente riguardo alla
presenza di tensioni pericolose non isolate all’interno
del guscio dell’unità, che potrebbero essere di intensità
sufficiente per costituire pericolo di elettrocuzione.
Il punto esclamativo racchiuso in un triangolo equilatero
intende avvisare l’utente in merito alla presenza di
importanti istruzioni operative e di manutenzione nella
documentazione di accompagnamento all’unità.
Precauzione: affidare l’installazione al solo personale
qualificato e nel rispetto del Codice elettrico nazionale
(USA) o dei codici locali pertinenti.
Scollegamento dell’alimentazione. Gli apparecchi con o
senza commutatori ON-OFF ricevono corrente tutte le
volte che il cavo di alimentazione è inserito nella presa
di forza; tuttavia, gli apparecchi muniti di commutatore
ON-OFF funzionano solo se quest’ultimo è in posizione
ON. Il cavo di alimentazione serve a scollegare dalla
corrente tutti gli apparecchi.
VOORZICHTIG
GEVAARVOOR ELEKTRISCHE SCHOK.
NIET OPENEN!
VOORZICHTIG: MAAK HET APPARAAT NIET
OPEN OM DE KANS OP ELEKTRISCHE
SCHOKKEN TE VERMIJDEN. BEVAT GEEN
ONDERDELEN DIE DOOR DE GEBRUIKER
MOETEN WORDEN ONDERHOUDEN. LAAT
ONDERHOUD EN REPARATIES UITVOEREN
DOOR BEVOEGDE TECHNICI.
WAARSCHUWING
TER VOORKOMING VAN BRANDGEVAAR
EN ELEKTRISCHE SCHOKKEN MAG DIT
ARMATUUR NIET AAN REGEN EN VOCHT
WORDEN BLOOTGESTELD.
ATTENZIONE
PERICOLO DI SCOSSA ELETTRICA.
NON APRIRE.
ATTENZIONE: PER RIDURRE IL PERICOLO DI
SCOSSA ELETTRICA, NON APRIRE LE
COPERTURE. L’INTERNO NON CONTIENE
COMPONENTI CHE L’UTENTE PUÒ
RIPARARE PERSONALMENTE. RIVOLGERSI AL
PERSONALE DI ASSISTENZA QUALIFICATO
PER QUALSIASI INTERVENTO DI
RIPARAZIONE.
AVVERTENZA
PER IMPEDIRE INCENDI O SCOSSA
ELETTRICA, NON ESPORRE L’UNITÀ ALLA
PIOGGIA O ALL’UMIDITÀ.

7
CONTENTS
1UNPACKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1.1 VidQuad Digital Video Processor Units . . . . . . . . . .7
2SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3.1 LTC 2372 & LTC 2375 . . . . . . . . . . . . . . . . . . . . .7
3.2 LTC 2376 & LTC 2377 . . . . . . . . . . . . . . . . . . . . .7
4INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . .9
4.1 LTC 2372 & LTC 2375 Connection . . . . . . . . . . . .9
4.2 LTC 2376 & LTC 2377 Connection . . . . . . . . . . . .9
4.3 Grounding Connection . . . . . . . . . . . . . . . . . . . . . .10
5PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . .10
5.1 LTC 2372 & LTC 2375 . . . . . . . . . . . . . . . . . . . .10
5.2 LTC 2376 & LTC 2377 . . . . . . . . . . . . . . . . . . . .10
5.3 Time and Date . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
5.4 Camera Sequence Setup . . . . . . . . . . . . . . . . . . . . .11
5.5 Alarm Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
5.6 VCR Out Mode . . . . . . . . . . . . . . . . . . . . . . . . . . .13
5.7 Camera Titles . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
5.8 Color Adjustment (LTC 2377 Only) . . . . . . . . . . .14
5.9 Set the Password . . . . . . . . . . . . . . . . . . . . . . . . . .15
6OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
6.1 LTC 2372 & LTC 2375 Operation . . . . . . . . . . . .16
6.2 LTC 2376 & LTC 2377 Operation . . . . . . . . . . . .16
7MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . .18
8SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . .18
8.1 Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
8.2 Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
8.3 Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
8.4 Agency Certifications . . . . . . . . . . . . . . . . . . . . . . . .18
1UNPACKING
Unpack carefully. This is electronic equipment and should be
handled carefully.
Check to ensure that the following items are included for the
applicable modules ordered:
LTC 237x VidQuad Digital Video Processor Unit.
Line Cord/Power Adapter.
One (1) Set Rack Mount Ears.
15-pin Mating Connector Kit (LTC 2376 Series &
LTC 2377 Series only).
Installation Instructions (this manual).
If the item appears to have been damaged in shipment, replace
it properly in its carton and notify the shipper. If any items are
missing, notify your Philips Communication, Security &
Imaging Sales Representative or Customer Service
Representative.
The shipping carton is the safest container in which the unit
may be transported. Save it for possible future use.
1.1 VidQuad Digital Video Processor Units
The LTC 237x VidQuad Digital Video Processor Units provide
on-screen display of four camera inputs at genuine real time
update rates. Both NTSC and PAL compatible models are
available.
The models available are as follows:
Model Rated Voltage Power System
No. Voltage1Range at Rated
Voltage
Monochrome Models
LTC 2372/60 120 VAC, 60 Hz 105 to 135 4 W EIA
LTC 2372/50 230 VAC, 50 Hz 210 to 260 4 W CCIR
LTC 2376/60 120 VAC, 60 Hz 105 to 135 4 W EIA
LTC 2376/50 230 VAC, 50 Hz 210 to 260 4 W CCIR
Color Models
LTC 2375/60 120 VAC, 50/60 Hz 100 to 240 6 W NTSC
LTC 2375/50 230 VAC, 50/60 Hz 100 to 240 6 W PAL
LTC 2377/60 120 VAC, 50/60 Hz 100 to 240 6 W NTSC
LTC 2377/50 230 VAC, 50/60 Hz 100 to 240 6 W PAL
1. One (1) power adapter is included with each model.
2SERVICE
If the unit ever needs repair service, the customer should contact
the nearest Philips Communication, Security & Imaging Service
Center for authorization to return and for shipping instructions.
Service Centers
U.S.A. & Canada: 800-366-2283
Mexico & Central America: 52-5-564-2726
Europe & Middle East: 011-32-1-440-0711
South America: 54-11-4956-0837
Asia Pacific Region: 011-65-481-4422
3DESCRIPTION
3.1 LTC 2372 & LTC 2375
The LTC 2372 VidQuad Digital Monochrome Video Processor
and the LTC 2375 VidQuad Digital Color Video Processor
provide four camera inputs. The units display high quality
pictures from four cameras at one time on a monitor screen.
The image display is updated at the field rate of 60 fields/sec
(EIA/NTSC), 50 fields/sec (CCIR/PAL), providing genuine real
time video.
3.2 LTC 2376 & LTC 2377
The LTC 2376 VidQuad Digital Monochrome Video Processor
and the LTC 2377 VidQuad Digital Color Video Processor
provide on-screen display of four camera inputs combined with
numerous additional functions. Each quadrant may be
sequenced full-screen in place of being displayed in a quad split.
The image display is updated at the field rate of 60 fields/sec
(EIA/NTSC), 50 fields/sec (CCIR/PAL), providing genuine real
time video. In addition to the quad screen display, the units
offer VCR ZOOM playback function to allow full-screen
viewing during tape playback.
NOTE: To eliminate vertical roll during sequencing (Quad to
camera 1 only), the VidQuad output synchronizes to Input 1.
For the LTC 2377 Series, it is recommended to have a color
camera as Camera 1.

8
Figure 1 Typical Configuration for LTC 2372 & LTC 2375 VidQuad Digital Processor Unit
MADE IN KOREA
12
4
3
VIDEO IN
1 2
3 4
CLASS II
MON
PHILIPS
PHILIPS
PHILIPS
PHILIPS
PHILIPS
GND
ALARM / REMOTE
1 2
3 4
CLASS II
MON VCR
IN
MADE IN KOREA
OUT
1234
VCR or DVR
In
Out
1
8
9
15
Alarm Auto-terminating
Video Loop Outputs
PHILIPS
PHILIPS
PHILIPS
PHILIPS
PHILIPS
GND
Figure 2 Configuration for LTC 2376 & LTC 2377 VidQuad Digital Processor Unit with Monitor Option

9
4.2 LTC 2376 & LTC 2377 Connection
Video Inputs:
Camera 1 Video Input 1 - BNC
Camera 2 Video Input 2 - BNC
Camera 3 Video Input 3 - BNC
Camera 4 Video Input 4 - BNC
Video Outputs:
Monitor Video MON - BNC2
Loop-through 1 Video Output 1 - BNC3
Loop-through 2 Video Output 2 - BNC3
Loop-through 3 Video Output 3 - BNC3
Loop-through 4 Video Output 4 - BNC3
VCR Out VCR IN - BNC
VCR In VCR OUT - BNC4
Alarm/Remote:
Pin Function
1Alarm IN (1)
2Alarm IN (2)
3Alarm IN (3)
4Alarm IN (4)
5Alarm IN (Common)
6Alarm Trigger OUT (Signal)
7Alarm Trigger OUT (Ground)
8Alarm Trigger OUT (Ground)
9RS-232 (Rx)
10 RS-232 (Ground)
11 RS-232 (Ground)
12 No Connection
13 Alarm Relay OUT (NC)
14 Alarm Relay OUT (Common)
15 Alarm Relay OUT (NO)
RS-232 protocol6
Data Rate 1200 Baud
Data Bits 8
Parity None
Stop Bits 1
Video Inputs/Outputs:
Camera 1 Video Input 1 - BNC
Camera 2 Video Input 2 - BNC
Camera 3 Video Input 3 - BNC
Camera 4 Video Input 4 - BNC
Monitor Video Mon - BNC
ALARM / REMOTE
124
3
1 2
3 4
CLASS II
MON VCR
IN
MADE IN KOREA
OUT
GND
Alarm inputs are Class 2 input only.
Alarm input cables must be shielded, and the shield must
be grounded.
NOTES:
1. The LTC 2377 provides a COLOR Adjustment menu to assist initial
monitor adjustment.
2. If the video line ends at the system monitor, set the monitor’s
termination switch to 75 Ohm. If the video is looped through the
monitor to some other item of equipment, set the monitor termination
switch to HIGH Z or HIGH IMPEDANCE. The last video in the line
must be terminated with 75 ohm.
3. If the video is to be looped out to other equipment, make sure that the
final item of video equipment on each line is terminated with 75 ohm.
4. The VCR or DVR can be connected to the unit to allow it to respond to
alarms.
5. Do not apply any voltage to any alarm input. It will damage the unit.
6. Set the host computer to the half-duplex mode. The LTC 2376 and
LTC 2377 do not echo received characters.
7. If less than 4 inputs will be connected to the LTC 2376 or LTC 2377, an
on-screen Vid Loss message will be displayed on unused channels. To
disable message display, enter the Sequence Setup menu and set the
unused channels to the SKIP setting.
Figure 3 LTC 2372 & LTC 2375 Connection
4INSTALLATION
4.1 LTC 2372 and LTC 2375 Connection
MADE IN KOREA
12
4
3
VIDEO IN
1 2
3 4
CLASS II
MON GND
Figure 4 LTC 2376 & LTC 2377 Connection

10
5PROGRAMMING
5.1 LTC 2372 & LTC 2375
No programming required.
5.2 LTC 2376 & LTC 2377
Programming the LTC 2376 and LTC 2377 includes writing
titles for the video inputs, assigning dwell times to each input
and to the quad display for sequencing (SEQ) operating,
enabling or disabling the video loss alarm, and enabling or
disabling the security lock. Each of these functions comes
preprogrammed with a factory default setting.
•Press the MENU key to display the programming screen.
For the LTC 2376/2377 the following screen is displayed:
All programming is done with the front panel keys. There are
eight keys on the front panel. The keys named MENU, 1/ ,
2/ , 3/ , 4/ , and /are used in programming the
unit.
The VCR and SEQ/ keys are not used in programming
the unit. Functions of each key on the front panel are described
in the table above.
ALM ( )
>
<
>
>
4.3 Grounding Connection
If the unit is not rack-mounted, a separate grounding wire may be
required to eliminate the effects of image interference. Attach a wire
compliant with local codes between the grounding screw on the rear
panel and a suitable earth ground.
Table (Key Functions)
Key Label Operating Function Programming Function
VCR Selects VCR input for display on monitor NONE
Menu Selects on-screen menu Enter the programming mode
Seq/ Selects the sequential switching function NONE
1/ Selects camera 1 for full-screen display on monitor Scrolls upward through program selections; selects
entries
2/ Selects camera 2 for full-screen display on monitor Scrolls downward through program selections; selects entries
3/ Selects camera 3 for full-screen display on monitor Shifts cursor to the left in menus; selects entries
4/ Selects camera 4 for full-screen display on monitor Shifts cursor to the right in menus; selects entries
/Selects quad display on monitor Enter or set function
>
<
>
>
ALM ( )
VidQuad
Figure 5 LTC 2372 & LTC 2375 Front Panel
VidQuad MODE DISPLAY
VCR Menu Seq 123 4
V
V
V
ALM
( ) V
Figure 6 LTC 2376 & LTC 2377 Front Panel
(1) TIME/DATE
(2) SEQ SETUP
(3) ALARM SETUP
(4) VCR OUT MODE*
(5) CAMERA TITLES
(6) COLOR ADJUST*
(7) PASSWORD SET
(8) EXIT
*LTC 2377 only.

11
5.3 Time and Date
This menu allows you to set the date and time format, the
current time/date, and the displayed position on the monitor.
•Select TIME/DATE and press the key. The following
menu is displayed:
5.3.1 Time Format
•Select TIME FORMAT and press the key. The
following menu is displayed:
•Press the 1key, and toggle to select the required format.
Options are as follows:
12 HOURS (AM/PM)
24 HOURS (0000-2359).
•Press the key.
5.3.2 Date Format
•Select DATE FORMAT and press the key. The
following menu is displayed:
•Press the 1key, and toggle to select the required format.
Options are as follows:
MM/DD/YEAR
DD/MM/YEAR
YEAR/MM/DD
•Press the key.
5.3.3 Time/Date Set
•Select TIME/DATE SET and press the key. The
following menu is displayed:
•Press the and keys to move the cursor to the
required position.
•Press the and keys to establish the necessary digit
(calenders until the year of 2097 are in this menu).
•Press the key.
5.3.4 Display Mode Set
•Select the DISPLAY function.
•Press the key to toggle through BOTTOM, TOP, and
OFF. The Date/Time will be displayed on the monitor in
the selected position.
•Select EXIT and press the key to exit the menu.
5.4 Camera Sequence Setup
This menu allows you to adjust the dwell times of the 4 camera
video and the Quad screens.
•Select SEQ SETUP and press the key. The following
menu is displayed:
•Press the and keys to move the cursor to the
required channel.
>
>
>
>
><
(1) TIME FORMAT
(2) DATE FORMAT
(3) TIME/DATE SET
(4) DISPLAY : BOTTOM
(5) EXIT
TIME FORMAT
12 HOURS (AM/PM)
DATE FORMAT
MM/DD/YEAR
TIME/DATE SET
12:00:00 AM 12/31/1999
HH:MM:SS MM/DD/YEAR
TO EXIT PRESS ENTER KEY
(1) TIME FORMAT
(2) DATE FORMAT
(3) TIME/DATE SET
(4) DISPLAY : BOTTOM
(5) EXIT
DWELL TIME
(1) CAMERA 1 : 9 SEC
(2) CAMERA 2 : 9 SEC
(3) CAMERA 3 : SKIP
(4) CAMERA 4 : 9 SEC
(5) QUAD : 9 SEC
(6) EXIT

12
•Press the key to increase the dwell time. Dwell times
may be programmed from SKIP to 9 seconds (when you
reach 9 seconds, pressing the key will toggle you
through the sequence again). A setting of SKIP removes the
channel from the sequence. The SKIP setting is also used to
disable display of the on-screen Vid Loss message on input
channels that will have no camera connection.
•Select EXIT and press the key to exit the menu.
5.5 Alarm Setup
The ALARM SETUP menu allows you to set the alarm options
for each of the video inputs. These options include alarm
on/off, dwell time, polarity, and video loss. The unit can also
have the audio beeper set to on or off.
•Select ALARM SETUP and press the key. The
following menu is displayed:
5.5.1 Set Up an Alarm Channel
You can switch the alarm function ON/OFF for each of the
four video input channels.
•Select ALARM ON/OFF and press the key. The
following menu is displayed:
•Press the and keys to move the cursor to the
required channel.
•Press the key to toggle the channel ON or OFF.
•Select EXIT and press the key to exit the menu.
5.5.2 Alarm Dwell Time
The ALARM DWELL function allows you to set the automatic
reset period after an alarm is generated.
•Select ALARM DWELL and press the key. The
following menu is displayed:
•Press the and keys to adjust the time. Options are as
follows:
■1-60 SEC: automatic reset period.
■HOLD: alarm continues until the alarm camera key is
pressed followed by the key.
■FOLLOW: alarm continues until the alarm input
signal is reset or the alarm camera key is pressed
followed by the key.
•Press the key to exit the menu.
5.5.3 Alarm Polarity
The ALARM POLARITY function enables you to define how
the alarm is generated for each alarm input, either normally
open (NO) or normally closed (NC) contacts.
•Select ALARM POLARITY and press the key. The
following menu is displayed:
•Press the and keys to move the cursor to the
required channel.
•Press the key to toggle the channel NO or NC.
•Select EXIT and press the key to exit the menu.
NOTE: Alarm functions are disabled when in the menu or
VCR mode.
>
>
ALM ( )
ALM ( )
>
>
>
>
ALARM SETUP
(1) ALARM ON/OFF
(2) ALARM DWELL
(3) ALARM POLARITY
(4) VIDEO LOSS ALERT
(5) BEEPER: ON
(6) EXIT
ALARM ON/OFF
(1) CHANNEL 1: ON
(2) CHANNEL 2: ON
(3) CHANNEL 3: OFF
(4) CHANNEL 4: ON
(5) EXIT
AUTO RESET TIME
60 SEC
ALARM POLARITY
(1) CHANNEL 1: NO
(2) CHANNEL 2: NO
(3) CHANNEL 3: NO
(4) CHANNEL 4: NO
(5) EXIT

13
5.5.4 Video Loss Alert
The VIDEO LOSS ALERT function enables you to define if
an alarm is generated when any of the video inputs is
lost/defective.
•Select VIDEO LOSS ALERT and press the key. The
following menu is displayed:
•Press the and keys to move the cursor to the
required channel.
•Press the key to toggle the channel ON or OFF.
•Select EXIT and press the key to exit the menu.
NOTE: To disable the display of the on-screen Vid Loss
message on unused channels, enter the Sequence Setup menu
and set unused channels to the SKIP setting.
5.5.5 Beeper On/Off
The unit incorporates a beeper to alert the operator when an alarm
is generated. You can define whether the beeper is on or off.
•Select BEEPER.
•Press the key to toggle the function ON or OFF.
•Select EXIT and press the key to exit the menu.
5.6 VCR Out Mode (LTC 2377 only)
The VCR OUT MODE defines how the unit’s video output to
the VCR or a DVR is recorded, either as quad mode, or as the
selected monitor output.
•Select VCR OUT MODE and press the key. The
following menu is displayed:
•Press the and keys to toggle the mode for the
following:
■DISPLAY QUAD ONLY: the output to the
VCR/DVR will be quad mode in all conditions.
■SAME AS MONITOR OUT: the VCR output will
be the same as the selected monitor output.
•Press the key to exit the menu.
5.7 Camera Titles
You can set up camera titles for each camera input for display
on the monitor. A character set is available for programming
8 character camera titles. These are as follows:
[A][B][C][D][E][F][G][H][I][J][K][L][M][N][O][P][Q][R][S]
[T][U][V][W][X][Y][Z][1][2][3][4][5][6][7][8][9][0]
[,][.][:][(][)][-][+][/][space]
•Select CAMERA TITLES and press the key. The
following menu is displayed:
•Press the and keys to move the cursor to the
required channel.
•Press the key to display the CAMERA TITLE SET
menu.
>
>
>
>
>
>
VIDEO LOSS ALERT
(1) CHANNEL 1: ON
(2) CHANNEL 2: ON
(3) CHANNEL 3: OFF
(4) CHANNEL 4: ON
(5) EXIT
ALARM SETUP
(1) ALARM ON/OFF
(2) ALARM DWELL
(3) ALARM POLARITY
(4) VIDEO LOSS ALERT
(5) BEEPER: ON
(6) EXIT
VCR OUT MODE
DISPLAY QUAD ONLY
TO EXIT PRESS ENTER KEY
CAMERA TITLES
(1) CAMERA 1
(2) CAMERA 2
(3) CAMERA 3
(4) CAMERA 4
(5) DISPLAY: ON
(6) EXIT

14
•Press the and keys to move the cursor to the
required position.
•Press the and keys to select the required character.
•Press the key to return to the CAMERA TITLES menu.
•Select EXIT and press the key to exit the menu.
5.7.1 Display ON/OFF
You can define if the camera tiles are displayed on the monitor.
•Select DISPLAY.
•Press the key to toggle either ON or OFF.
•Select EXIT and press the key to exit the menu.
5.8 Color Adjustment (LTC 2377 Only)
On the LTC 2377 Digital Color Quad Splitter Unit, you can
adjust the color brightness and contrast for each individual
camera input for optimum display.
Key codes used for adjusting are as follows:
• Change option
• Increase
• Decrease
• Advance camera #
•Select COLOR ADJUST and press the key. The
following menu is displayed:
•Press the and keys to adjust the brightness to display
the optimum image.
•Press the key to display the next menu:
•Press the and keys to adjust the contrast to display
the optimum image.
•Press the key to display the next menu:
•Continue to adjust the color for each camera in turn in the
same manner.
•When all cameras have been adjusted, press the key to
exit the menu.
>
<
>
>
<
>
>
<
>
>
>
>
><
CAMERA 1 TITLE SET
CAMERA 1
TO EXIT PRESS ENTER KEY
CAMERA TITLES
(1) CAMERA 1
(2) CAMERA 2
(3) CAMERA 3
(4) CAMERA 4
(5) DISPLAY: ON
(6) EXIT
CAMERA 1 BRIGHTNESS
.............
CAMERA 1 CONTRAST
.............
CAMERA 2 BRIGHTNESS
.............

15
5.9 Set the Password
The unit incorporates a password function for entry to the
menu operation. This ensures that only authorized persons can
change the unit settings.
•Select PASSWORD SET and press the key. The
following menu is displayed:
•Press the and keys to move the cursor to (1) NEW
PASSWORD.
•Press the key to display the PASSWORD SETTING
menu.
•Enter your 4 digit password by pressing the 1,2,3or 4
keys. When entered, the display changes to the following:
•Confirm your 4 digit password.
•Press the key to exit the menu.
•Select EXIT to exit the main menu.
•Attempt to access the Menu by pressing Menu.
•Enter your 4 digit password. When a correct password is
entered, the main menu is displayed. If incorrect, the
message Wrong Password is displayed for 3 seconds and
will then display the camera images.
5.9.1 Disable Password
The password function can be disabled.
•Select DISABLE PASSWORD and press the key. The
screen displays the message Clear Password.
•Select EXIT and press the key to exit the menu.
•Select EXIT to exit the main menu.
>
>
PASSWORD SETTING
(1) NEW PASSWORD
(2) DISABLE PASSWORD
(3) EXIT
ENTER PASSWORD
****
CONFIRM PASSWORD
****
PASSWORD SETTING
DISABLE PASSWORD

16
6OPERATION
6.1 LTC 2372 & LTC 2375 Operation
The LTC 2372 and LTC 2375 are operational as soon as power
is connected. No further action is required.
6.2 LTC 2376 & LTC 2377 Operation
Normal operating selections are made using the eight front
panel keys, and functions are selected with a single key press.
The LTC 2376 and LTC 2377 may also be controlled remotely
by a user-provided dry contact control or by a host computer
using a simple RS-232 command set.
6.2.1 Basic Operation
The basic operation includes selecting the sequence, follow,
VCR, or quad modes and selecting individual camera channels
for hold viewing. When the unit is in the operational mode
(that is, not in the programming mode), six keys (SEQ, 1, 2, 3,
4, ) perform the functions. The four keys labeled 1, 2, 3,
and 4select video channels 1 through 4, respectively, and the
key selects the quad display.
6.2.2 VCR
The VCR key selects the input from the VCR or a DVR to be
displayed on the system monitor.
You can view the recorded VCR/DVR images in a quad format
or any quad can be zoomed to full-screen.
To view recorded VCR/DVR images:
1. Insert a recorded tape in the VCR and press the PLAY key,
or select a playback time from the DVR.
2. Press the VCR key on the Quad unit to display the playback
video from the VCR/DVR. The LED above the VCR key
remains illuminated as long as this function is selected.
3. The VCR/DVR images can be viewed as recorded in a quad
format or any quad can be zoomed to full-screen.
• Press the 1key. The upper left hand quad is zoomed to
full-screen.
• Press the 2key. The upper right hand quad is zoomed to
full-screen.
• Press the 3key. The lower left hand quad is zoomed to
full-screen.
• Press the 4key. The lower right hand quad is zoomed to
full-screen.
• Press the key. Display VCR/DVR video as recorded.
If the monitor screen does not display a picture when the VCR
key is pressed, check to make sure that the VCR/DVR is plugged
in and turned on and that the device is in the PLAYBACK
mode.
6.2.3 Sequence Switching
The SEQ key selects the sequential switching function. The
sequencing list and dwell times can be customized (refer to
Section 5, Programming).
•Press the SEQ key to start video sequencing. The cameras
are displayed in the order 1-2-3-4-QUAD-1-2-etc. The
quad screen is displayed after camera 4. Each camera
remains on-screen for the programmed dwell period, unless
its dwell was set at SKIP. In this case, it is deleted from the
sequencing stack.
6.2.4 Manual Switching
•Press the 1, 2, 3, or 4key to select manual switching. The
selected quadrants will be displayed in full-screen mode.
The camera title of the selected quadrant is displayed in the
center of the monitor screen.
If the Quad unit is operating in the VCR or programming
mode, you cannot use manual switch mode.
VidQuad
LTC 2372 & LTC 2375 Front Panel
VidQuad MODE DISPLAY
VCR Menu Seq 123 4
V
V
V
ALM
( ) V
LTC 2376 & LTC 2377 Front Panel

17
6.2.5 Quad Display
•Press the QUAD key to display all four camera inputs on
the system monitor screen. Each quadrant displays the video
from its respective camera. The four quadrants are separated
by a black border.
■The titles of the camera 1 are displayed in the bottom
right corner of the screen.
■The titles of the camera 2 are displayed in the bottom
left corner of the screen.
■The titles of the camera 3 are displayed in the upper
right corner of the screen.
■The titles of the camera 4 are displayed in the upper
left corner of the screen.
6.2.6 Alarm Function
When an alarm input is generated, the relevant camera image
appears as a full screen image and the message *ALARM*
flashes on screen.
For a generated alarm the sequence of operation is as follows:
1. MON output and VCR output are changed to display the
full-screen image of alarmed channel.
2. The message *ALARM*flashes on the screen.
3. If a second alarm input is generated, each alarm screen
appears for 2 seconds in turn. Press the channel key again.
4. The alarm audible beeper is activated (if BEEPER status is
ON).
5. The alarm output (Relay Output, Trig Output) is activated
automatically.
To reset a single alarm:
•Press the key.
To reset one of multiple alarms:
•Press the Camera (1, 2, 3, or 4) key, then the key.
The duration of the alarm mode is determined by one of these
conditions:
•If the duration of the alarm input is less than the Alarm
Dwell Time, the unit remains in the alarm mode for the
Alarm Dwell Time.
■Press the key to cancel the alarm instantly.
•If the alarm input persists for more than the Alarm Dwell
Time, the unit remains in the alarmed state only as long as
the Alarm Dwell Time.
■Press the key to cancel the alarm instantly.
•If an Alarm Dwell Time is set to the HOLD mode, the
alarm remains active until the alarm is reset by the operator.
■ Press the key to cancel the alarm.
•If an Alarm Dwell Time is set to the FOLLOW mode, the
alarm remains active until the alarm is reset.
■ Press the key to cancel the alarm instantly.
6.2.7 Video Loss Alert
The LTC 2376 and LTC 2377 may be programmed to produce
an alarm if the video signal to any of the four camera channels
is lost. (NOTE: Video Loss Alert must be ON for the respective
channel). A loss of video produces the following effects:
•The monitor screen is changed to QUAD screen image and
the message VD LOSS is displayed on-screen. After reaching
the Alarm Dwell Time, if applicable, the display will return
to its previous full-screen.
•The VCR output changes to the same status as the monitor
display.
•If BEEPER status is ON, the alarm sound is activated and
the alarm output (Relay out, Trig out) is active for the alarm
dwell time.
■Press the key. The alarm is acknowledged, but
the VD LOSS remains on-screen until the video input
is restored.
•To disable the VD LOSS message display on unused channels,
set the dwell of the unused channels to the SKIP setting
6.2.8 Computer Remote Control
The LTC 2376 and LTC 2377 use a very simple command set
with each command consisting of three characters. The first
character in all cases is the slash or virgule(/). The unit looks
only for a three-character command with an initial slash. It
ignores all other characters. If a mistake is made in entering a
command, just type in another slash character followed by the
appropriate characters for the desired command. The
commands are listed in the following table - RS-232
Commands.
Signal format is as follows:
•Data Format: 1,200 Baud/8 Data Bit/No Parity/One Stop Bit
•Mode: Half Duplex Mode (The unit is not Echo Received
Character).
ALM ( )
ALM ( )
ALM ( )
ALM ( )
ALM ( )
ALM ( )
ALM ( )
Table - (RS-232 Commands)
COMMAND RS-232 CODE
VCR Input /VR
Enter the Programming Mode /ME
Sequence/Reset /SR
Camera 1/Up /1U
Camera 2/Down /2D
Camera 3/Left /3L
Camera 4/Right /4R
Quad Display/Enter /QE

18
6.2.9 Computer Time/Date Interface
The LTC 2376 and LTC 2377 have the capability for time and
date settings to be set from a remote device. The commands are
as follows:
COMMAND RS-232 CODE
Set the time !TIME hh mm ss [return character]
Set the date !DATE mm dd yy [return character]
NOTE: In both cases, the commands are not case sensitive,
and the return character is the standard carriage return character
13 in decimal or 0D in hexadecimal.
The numeric values for both the Time and Date commands
MUST be sent in a hexadecimal format as below:
• Hours in hex: 0to 17
• Minutes in hex: 0to 3B
• Seconds in hex: 0to 3B
• Month in hex: 1to C
• Day in hex: 1to 1F
• Year in hex: 0to 1D for 2000 to 2029
For example:
•To set the time to 11:55:00 AM, send the following
characters:
■ASCII characters: !TIME B 37 0 [return character]
■Hex characters: 21 54 49 4D 45 20 42 20 33 37 20
30 0D
•To set the date to February 28, 2004, send the following
characters:
■ASCII characters: !DATE 2 1C 4 [return character]
■Hex characters: 21 44 41 54 45 20 32 20 31 43 20 34
0D
6.2.10 Factory Default Settings
You can restore the unit to its factory default settings as follows:
•Press and hold the VCR key. Connect the power cord (turn
on power) while you continue to hold the VCR key for 5
seconds. This restores the unit to its initial values.
The initial Factory Defaults values are as follows:
•CAMERA TITLES. Display as CH1, CH2, CH3, CH4.
•VCR OUT MODE. Set up as Same as Monitor Out
mode (LTC 2376; always Quad Only mode).
•ALARM SETUP. Alarm Channels are all ON, and Video
Loss Channels are all OFF. Dwell Time is set up as 5 sec.
Alarm input polarities are all normally open (NO).
•SEQ SETUP. Each 2 seconds (1~4 and Quad).
•TIME/DATE. Time and Date are not changed, Format is
set up as MM/DD/YEAR.
•PASSWORD SET. Password is disabled.
7MAINTENANCE
The Quad unit requires no routine maintenance and is
designed for long, trouble-free use under normal
operating conditions. Repair should only be attempted
by qualified personnel.
8SPECIFICATIONS
8.1 Electrical
Digital Memory:
LTC 2372 Series: 768 x625 CCIR; 762 x525 EIA, RS-170.
LTC 2376 Series: 768 x625 CCIR; 762 x525 EIA, RS-170.
LTC 2375 Series: 720 x576 PAL; 720 x480 NTSC.
LTC 2377 Series: 720 x576 PAL; 720 x480 NTSC.
Video:
Monochrome: 10 bit, 256 gray scales.
Color: 8 bit and 16 bit, 16 million color palette.
8.2 Mechanical
Construction: Steel chassis with sheet metal cover.
Finish: Charcoal.
Dimensions: 430 W x300 D x44 H mm
(16.9 x11.8 x1.7 in).
Weight:
LTC 2372 Series, LTC 2375 Series: 2.9 kg (6.4 lb).
LTC 2376 Series, LTC 2377 Series: 3.0 kg (6.7 lb).
8.3 Environmental
Temperature:
Operating: 0 °C to 40 °C (32 °F to 104 °F).
Storage: –40 °C to 70 °C (–40 °F to 158 °F).
Humidity: 10% to 90% relative, noncondensing.
8.4 Agency Certifications
EMC:
Immunity: EN50130-4 1998.
Emission: EN50081-1 1992; FCC Part 15, Class B.
Safety:
Power Adapter LTC 2372/50, LTC 2376/50: CE.
Power Adapter LTC 2372/60, LTC 2376/60: UL, cUL.
Power Adapter LTC 2375, LTC 2377 Series: CE, UL, cUL.

19

3935 890 18213 02-09 © 2002 Philips Electronics N.V.
Printed In U.S.A. © 2002 Philips Communication, Security & Imaging, Inc.
All Rights Reserved. Philips®is a registered trademark of
Philips Electronics N.V.
Data subject to change without notice