Model 1877 Advanced Signal Processed Passive Infrared Motion
Contents
1. ADEMCO GENERAL INFORMATION The No 1877 PIR provides 12 zones of wide angle coverage with a range of up to 40 feet or 11 zones of narrow Coverage with a range of up to 70 feet and has the foliownng mponant teatures e Quad element pyroetectnc sensor providing the reliability of two completely separate Oua owtectors covering the same area High precision computer Gesgned parabolic optical system Low current drain which anows tor extended system power source battery lite Preset zones for fast and easy mstauaton e Wall corner mounting piate Dual channel signal processing tor reduced taise alarms Pulse Count Capabitty to E mmancec Faise Alarm immunity 6V 10 12V DC operanor The No 1877 mus pe poweres tor a tinered 6V DC to 12V DC source that can provide at teas 4 mows stanGDy Power The No 495 Power Supply which can be puggec owectty mio any 24 hour 120V AC outlet can b used as a convenient souze o 6v DC naving up to 12 hours standby The detector s destqnec tc aperste a all times The LED on the unt will light whenever motion is getectec PRINCIPLES OF OPERATION The optical system ames he area mio a senes Ot protected zones A Quad element sensor measures tne teve of intrared energy in each zone When an intruder Crosses o enters any zone an alarm condition will be reported The detector 1s configureo with a quad element sensor and two independent signat processing ampiitiers In effect two passive i2. COME ON WHEN ALARM CON DITION EXISTS CAUSE A DC voltage supply to detector from pane or power supply inadequate or absent PROPER POLARITY MUST BE OBSERVED B Protective Loop is interrupted REMEDY Check for proper OC voltage at detector if absent check for proper voltage at pane or power supply terminais with wiring disconnected It present wining 10 detector is faulted Check tor open and shorted conditions in wiring if proper DC voltage is absent consult instructions for panel or power supply Determine whether interruption is in protective loop wiring or at detector s alarm relay contacts Disconnect protective loop at detec tor relay contact terminals and check continuity across terminals If pres ent check protection loop wiring If absent and proper voltage is being supplied to the detector return umit for service Trouble 3 RELAY OPERATES NORMALLY BUT WALK TEST LIGHT DOES NOT OPERATE CAUSE LED malfunction Check for broken or shorted leads REMEDY Return unit for service Trouble 4 AREA OF COVERAGE CHANGES CAUSE A Customer has repositioned furniture or equipment in premises 8 Mounting surtace is unstabie A tew degrees vertical shift can change range substantially REMEDY Caution customer that changes in layout can affect coverage Reposition the unit according to installation instructions Be certain that unit has not been tampered with Moun
3. IN NO CASE SHALL SELLER BE LIABLE TO ANYONE FOR ANY CONSEQUENTIAL OR INCIDENTAL DAMAGES FOR BREACH OF THIS OR ANY OTHER WARRANTY EXPRESS OR IMPLIED OR UPON ANY OTHER BASIS OF LIABILITY WHATSOEVER EVEN IF THE LOSS OR DAMAGE IS CAUSED BY THE SELLER S OWN NEGLIGENCE OR FAULT Seller does not represent that its product may not be compromised or circumvented that the product wili prevent any personal injury or property loss by burglary robbery fire or otherwise or that the product will in all cases provide adequate warning or protection Buyer understands that a properly installed and maintained alarm may only reduce the risk of a burglary robbery or fire without warning but it is not insurance or a guarantee that such will not occur or that there will be no personal injury or property loss as a result CONSEQUENTLY SELLER SHALL HAVE NO LIABILITY FOR ANY PERSONAL INJURY PROPERTY DAMAGE OR OTHER LOSS BASED ON A CLAIM THE PRODUCT FAILED TO GIVE WARNING However if Seller is held liable whether directly or indirectly for any loss or damage arising under this Limited Warranty or otherwise regardiess of cause or origin Seller s maximum liability shall not in any case exceed the purchase price of the product which shall be fixed as liquidated damages and not as a penalty and shall be the complete and exclusive remedy against Seller This warranty replaces all previous warranties and is the only warranty made by Ademco on this product No increase or alte
4. protect narrow corridors or where single protective zones are directed through doorways or room openings the Instant Response Option must be used This option is programmed by cutting the BLUE jumper on the circuit board See Diagram 5 for its tocation Control signal voltage is not required Use of this option will bypass the unit s pulse count logic and provide an instant alarm response when an intruder enters any single protective zone CAUTION Any jumper that is cut must have its loose ends taped or otherwise insulated to prevent accidental contact with other points intrusion Memory Option When used with a control thal can provide a suitable switched voltage to the detector s contro signal post to signal whether the control is ARMED or DISARMED the detector can be programmed by cutting the RED jumper See Diagram 5 for its location to provide intrusion memory as described in this section NOTE A push on connector is provided tor use on the CONTROL SIGNAL POST CAUTION Before cutting the RED jumper make sure that the control can provide the proper switched voltage signal to the CONTROL SIGNAL terminal as follows System Armed OV System Disarmed 6 12V input impedance 400K ohms Many Ademco control panels are sources of switched positive control voltage signals Some controls permit direct connection to the detector while others require the use of a No 688 688 12 Opening Cliosing Switching Module between
5. the control and the detector Consult your control pane instructions During the ARMED period if an intrusion occurs in the protected area the alarm relay will transfer and this tact will be stored in the detector s memory When the system is subsequently disarmed the LED will remain illuminated until cleared The LED memory can be cleared by momentarily ARMING and then DISARMING the system The LED will then respond ON and OFF narmally to motion detected in the protected area during the DISARMED period TESTING IMPORTANT Wait at least two minutes atter applying power before attempting to walk test unit Testing of the detector should be conducted with the protected area cleared of all people in some business establishments it may be more convenient to do this after the business is closed The protective system s contro should be disarmed during the procedure to prevent reporting unwanted alarms Walk Test Replace the front cover and walk test the unit Test operation by walking through the protective zones and observing the walk test LED it will tight whenever motion is detected The absolute range of all Passive I R units is subject to variation because of different types of clothing backgrounds and ambient temperature For this reason ensure that the most likely intruder routes are well within the PiR s protective zones and that walk testing is carried out along these routes MAINTAINING PROPER OPERATION AND CO
6. ECURES AND CONNECT HOUSING TO wart PLATE SWITCHE oC WINE ENTAY AREA WHEN COVES S w PLATE TCHED 1e SEE DETay a OPENING FOR VOLTAGE FROM CONTROL TO CONTROL SIGNAL POST SURFACE WIRING Diagram 4 MOUNTING DETAILS Diagram 5 CONNECTIONS TERMINALS AND JUMPERS LIMITED WARRANTY Seller warrants its products to be in conformance with its own plans and specifications and to be free trom defects in materials and workmanship under normal use and service for 18 months trom the date stamp contro on the product or tor products not having an Ademco date stamp for 12 months trom date of original purchase unless the installation instructions or catalog sets forth a shorter period in which case the shorter period shall apply Seller s obligation shalt be limited to repairing or repiacing at its option free of charge for materials or labor any part which is proved not in compliance with Seller s specifications or proves defective in materials or workmanship under normal use and service Seller shall have no obligation under this Limited Warranty if the product is altered or improperly repaired or serviced by anyone other than Ademco factory service For warranty service return product transportation prepaid to Ademco Factory Service 165 Eileen Way Syosset New York 11791 THERE ARE NO WARRANTIES EXPRESS OR IMPLIED OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR OTHERWISE WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF
7. VERAGE in order to maintain the detector in proper working Condition it is important that the tollowing be observed by the user 1 Power should be provided at all times The unit s DC source should have standby power available tor at least 4 hours of operation during emergencies 2 Units should never be re aimed or relocated without the advice of the alarm company 3 The physical surroundings of the protected area should not be changed If furniture or stock is moved or air conditioning or additional heating is installed the system may have to be readjusted by the alarm service company 4 Walk tests should be conducted at teast weekly to confirm continued proper coverage by each detector TROUBLESHOOTING Trouble 1 UNIT GOES INTO ALARM INTERMITTENTLY FOR NO APPARENT REASON AND WALK TEST LIGHT GOES ON WHEN ALARM CONDITION EXISTS CAUSE REMEDY A Rapid change in IR level identify source of IR or in a zone Check tor temperature change Reposition electrical or gas heaters unit so that source of problem open flames electric arcs is no tonger in a zone or any object in a zone which can change temperature rapidly Loeste source of motion Eliminate same and walk test unit after motion source is eliminated B Drafts are creating motion in drapes display material or overhead lighting fixtures Trouble 2 UNIT GOES INTO ALARM INTERMITTENTLY OR CON TINUOUSLY FOR NO APPARENT REASON AND WALK TEST LIGHT DOES NOT
8. es and loops within the unit are to be avoided The toam seal should surround the wires and block dratts trom entering the PIR enclosure 4 Attach the unit to the wall plate as follows Engage ail four hooks on the wait plate into the siots on the rear of the case see Diagram 4 and secure the unit to the wall plate by pressing downward NOTE With front cover secured in piace unit is tocked to wall mounting plate To detach unit from wali plate front cover must be removed first Wiring Connections See Diagram 5 for connections which should be made in this order 1 Alarm Relay To connect to a closed circuit protective loop see diagram 2 Input 6V 12V DC and Terminals Connect these terminals to a 6V DC to 12V DC source that can provide 35 mA contin uously Note Observe polarity 6V 0C can be conveniently pro vided directly from any 24 hour 120V DC outlet via a No 495 Power Supply which plugs directly into the outlet OPTIONAL OPERATING MODES As shipped each detector includes pulse count Circuitry that provides Stability in adverse environments to minimize false alarms In this mode the No 1877 will normally signat an alarm within 3 to 4 steps since the processing logic requires more complex motion than just a momentary event The LED however functions as a walk test indicator operating madependentily of the processing circuit instant Response Option For long range applications where the detector is used to
9. g raaators flames or heating outlet ducts are within the protective zones Avoid tocating the unit in direct sunlight o awectly above strong sources of heat Avoid locating unit on unstable surfaces Avoid running alarm wiring close 10 heavy duty electrical cables INSTALLATION AND WIRING Mounting 1 Mount the wali piate to a firm vertical surface fiat on wall or in corner as shown in Diagram 4 at the recommended height INSTALLATION INSTRUCTIONS No 1877 ADVANCED SIGNAL PROCESSED PASSIVE INFRARED MOTION DETECTOR MARGIN LINES INDICATE PRINCIPAL CHANGES IN THIS 1 87 ISSUE see previous section Orient the plate so that the rectangular Cutout in the plate is at the bottom If wiring is provided from a hole in the mounting surtace locate the mounting piate So that the wiring hole is centered horizontally within the rectangular Cutout in the plate and the bottom edge of the plate is positioned in line with the center of the wiring hole See Diagram 4 Detail A This will align the wiring hole with the wiring entry in the case when the unit is secured Wiring holes should be no larger than 5 16 in diameter 2 Remove the front cover from the detector 3 Using the wire entry access at the lower rear of the case Caretully feed the wires through the foam comb in the entry and atong the underside of the terminal block Wire length shouid be adequate for connection to the PIR terminal biock but unnecessary splic
10. nstallation manual Passive Infrared Motion Detectors do not provide volumetric area protection They do create multi ple beams of protection and intrusion can only be detected in unobstructed areas covered by those beams Passive infrared Detectors cannot detect motion or intrusion that takes place behind walls ceil ings floors closed doors glass partitions glass doors or windows Mechanical tampering masking painting or spraying of any material on the mirrors windows or any part of the optical system can reduce the detection ability of the Passive Infrared Motion Detector Passive infrared Detectors sense changes in temperature however as the ambient tempera Main Downward DETECTOR TYPICAL TOP VIEW ture of the protected area approaches the temperature range of 90 to 105 F 32 to 40 C the detection pertormance can decrease This Passive Infrared Detector will not operate without appropriate DC power connected to it or if the DC power is improperly connected i e reversed polarity connections Passive infrared Detectors like other electrical devices are subject to component failure Even through they are designed to last as long as 10 years the electronic components could fail at any time We have cited some of the most common reasons that a Passive infrared Motion Detector can fail to catch intrusion However this does not imply that these are the only reas
11. ntrared sensors are sharing a Common optical system Both sensors must detect motion at the same time tor the PIR to repon an giarm in this way immunity is provided agamst taise alarms atirrDuted to channel nose Bnd random detector disturbances white catch pertiormance is not compromised COVERAGE CONSIDERATIONS AND TYPICAL LAYOUTS The range will depend upon the mirror system m use Protective patterns are shown in Diagrams 1 and 2 However tne unt may De mounted al other heights with modified range coverage as shown in Diagram 3 Dead Zone Caution Note m Diagram nat a Oeao zone iS narcated within which a person Could be Moving anc not be detected by any of me unit s protective zones Other geac zones may occur between the detector and the downward tields of view as the und Mounnng height 1s increased As shipped from Ademco PIR coverage s set tor mae angie snoner range TO CHANGE TO LONG RANGE PROTECTION follow the mirror change instructions packeo with the tong range mirror Selecting a Mounting Location The No 1877 Passive Infrared Detector responds to changes n energy which occur when an intruder moves into or Out of a protecive zone Best coverage will be obtained if the mounting sae setecteo such thal tne likely direction of intruder motion is ACROSS me patiern Passive I R units are remarkably resistant to taise alarm hazards but the following recommendations should be opserved Avoid locating unit where central heatin
12. ons and therefore it is recommended that weekly testing of this type of unit in conjunction with weekly testing of the entire alarm system be performed to ensure that the detectors are working properly Installing an alarm system may make one eligible for lower insurance rates but an alarm system is not a substitute for insurance Homeowners prop erty owners and renters should continue to insure their lives and property SIDE view Diagram 1 WIDE ANGLE PROTECTION PATTERNS 1 DOWNWARD INTERMEDIATE TYPICAL TOP VIEW OESECTOR DOWNWARD INTERMEQIATE SIDE VIEW Diagram 2 LONG RANGE PROTECTION PATTERNS 3 MOUNTING HEIGHT WIDE ANGLE MIRROR LONG RANGE MIRROR 40 50 60 70 RANGE MAIN ZONE Diagram 3 MAIN ZONE RANGES AT VARIOUS MOUNTING HEIGHTS MDUN ENS nb ale MOUSING BASE COVER REMOVED MIRROR BRACKET SLOTS 4 ENGAGE SLOTS ONTO OORS AND 51 DE OUSING BASE CON Fay HOOKS WILL PUNCTURE LABEL ON BASE ARS 4 6 Ok JORNE N MOUNTING Mar BE BROREN OFF WIRING Kore n MOUNTING SURFACE 5 16 10 Berm MAX DIAMETER CENTER OF HOLE MUST BE ON LINE WITH BOTTOM EDGE OF vari PLATE CLOSED CIRCUIT PROTECTIVE LOOP FROWN 6 12 VOC SOuRCE ISMA CTRL SIG OST T g Ri a 12 VOC BLUE INPUT cut ton INSTAR RESPONSE RED RATING Tak cA 1A IMAX FOR INTRUSION rien one AT 28v OC MEMORY MODE UN FCAT WAL CUTOVER MTERLOCK S
13. ration written or verbal of the obligat dn of this Limited Warranty is authorized Ademco s a registered trademark of Alarm Device Manufacturing Company Division of Pittway Corp ALARM DEVICE MANUFACTURING CO X VISION OF PITTWAY CORPORATIO 165 Eileen Way Syosset New York 11791 Copyright 1986 PITTWAY CORPORATION ADEMCO N2005V3 1 87
14. t on secure surface Trouble 5 UNIT DOES NOT APPEAR TO BE OPERATING CAUSE Unit ts not receiving power REMEDY Check fer presence of 6V 0C to 12V DC at terminais of unit PROPER POLARITY MUST BE OBSERVED GENERAL SPECIFICATIONS Physical Width 3 14 Height 4 4 Depth 2 4 Electrical Voltage 6V 0C to 12V DC Current 35 mA Standby Power source used should be able to provide at least 4 hours of standby power Relay Contacts 1 Amp at 28 VDC TO THE INSTALLER Regular maintenance and inspection at teast annually by the installer and frequent testing by the user are vital to continuous satisfactory operation of any alarm system The installer should assume the responsibility of developing and offering a regular maintenance program to the user as well as acquainting the user with the proper operation and limitations of the alarm system and its component parts Recommendations must be included for a specific program of frequent testing at least weekly to insure the system s proper operation at all times WARNING THE LIMITATIONS OF THIS PASSIVE INFRARED MOTION DETECTOR While the Intrusion Detector is a highly reliable intrusion detection device it does not offer guaran teed protection against burglary Any Intrusion Detection device is subject to compromise or fail ure to warn for a variety of reasons Passive intrared Motion Detectors can only detect intrusion within the designed ranges as diagrammed in this i
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