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Installation Accessories Signature Series detectors mount to North American 1 -gang All detector mounting bases have wiring terminals that are acces- boxes, 3 -1/2 inch or 4 inch octagon boxes, and to 4 inch square sible from the "room- side" after mounting the base to the electri- electrical boxes 1-1/2 inches (38 mm) deep. They mount to Euro- cal box. The bases mount to North American 1 -gang boxes and pean BESA and 1 -gang boxes with 60.3 mm fixing centers. to 31/2 inch or 4 inch octagon boxes, 11/2 inches (38 mm) deep. They also mount to European BESA and 1 -gang boxes with 60.3 mm fixing centers. The SIGA -SB4, SIGA -RB4, and SIGA -IB4 1 0.8' (20 mm) mount to North American 4 inch sq. electrical boxes in addition to the above boxes. They include the SIGA -TS4 Trim Skirt which is used to cover the "mounting ears" on the base. The SIGA -AB4G z.o' (s) mm) mounts to a 4" sqare box only. . ,, ,. / -</'-;-'-":;::'''. r c- 00 ... 4.4' (112 mm) •.. ' 7ur SIGA -SB S I G ..A i/`� 1!m' a A -RB SIGAd.ED - Break k Tamper-Resist Tampa Lever Arm 1 �, Illy ! a �% SIGA -AB 4G SIGA -113 Audible Base Standard Base Isolator Base Relay Base Remote LED off to disable (Located on Base) ins / Standard Base SIGA -SB, SIGA -SB4 - This is the basic mount - ing base for Edwards Signature Series detectors. The SIGA -LED , IN Remote LED is supported by the Standard Base. Access slat for Relay Base SIGA -RB, SIGA -RB4 - This base includes a relay. Tamper - Resist Mechanism Normally open or closed operation is selected during installation. The dry contact is rated for 1 amp (pilot duty) @ 30 Vdc. The relay's position is supervised to avoid accidentally jarring it out of position. • The SIGA -RB can be operated as a control relay if programmed to do so at the control panel (EST3 V.2 only). The relay base does Testing & Maintenance not support the SIGA -LED Remote LED. Audible Base SIGA -AB4G - This base is designed for use where Each detector automatically identifies when it is dirty or defective localized or group alarm signaling is required. When the detector and causes a "dirty detector" message. The detector's sensitiv- senses an alarm condition, the audible base emits a local alarm ity measurement can also be transmitted to the loop controller. A signal. The optional SIGA -CRR Polarity Reversal Relay can be used sensitivity report can be printed to satisfy NFPA sensitivity meas- for sounding to other audible bases on the same 24 Vdc circuit. urements which must be conducted at the end of the first year Relay and Audible Bases operate as follows: and every two years thereafter. - at system power -up or reset, the relay is de- energized The user-friendly maintenance program shows the current state - when a detector is installed in the base with the power of each detector and other pertinent messages. Single detectors on, the relay energizes for four seconds, then de energizes may be turned off temporarily from the control panel. Availability of - when a detector is removed from a base with the power on, maintenance features is dependent on the fire alarm system used. the relay is de energized Scheduled maintenance (Regular or Selected) for proper detec r the detector enters the alarm state, the relay is energized. tor operation should be planned to meet the requirements of the - when Authority Having Jurisdiction (AHJ). Refer to current NFPA 72 and Isolator Base SIGA -1B, SIGA -IB4 - This base includes a built -in ULC CAN /ULC 536 standards. line fault isolator for use on Class A circuits. A detector must be installed for it to operate. The isolator base does not support the SIGA -LED Remote LED. Compatibility The isolator operates as follows: The SIGA -PS detectors are compatible only with the Signature - a short on the line causes all isolators to open within 23 msec Loop Controller. - at 10 msec intervals, beginning on one side of the Class A circuit nearest the loop controller, the isolators close to provide the next isolator down the line with power Warnings & Cautions - when the isolator next to the short closes, reopens within 10 msec. This detector will not operate without electrical power. As fires fie The process repeats beginning on the other side of the loop quently cause power interruption, we suggest you discuss further controller. safeguards with your fire protection specialist. Remote LED SIGA -LED - The remote LED connects to the This detector will NOT sense fires that start in areas where smoke SIGA -SB or SIGA -SB4 Standard Base only. ft features a North cannot reach the detector. Smoke from fires in walls, roofs, or on American size 1 -gang plastic faceplate with a white finish and red the opposite side of closed doors may not reach the detector to alarm LED. alarm it. SIGA -TS4 Trim Skirt - Supplied with 4 inch bases, it can also be ordered separately to use with the other bases to help hide surface imperfections not covered by the smaller bases. 85001 -0269 Page 2ot4 Issue6