User manual ELK PRODUCTS ELK-941

[. . . ] · Size: 4. 4" x 3" x 1. 15". · Meets ANSI S3. 41Audible Emergency Evacuation Signals 3-Pulse Pattern. Features and Specifications subject to change without notice. 828-397-4200 Voice 828-397-4415 Fax http://www. elkproducts. com email: info@elkproducts. com PO Box 100 · Hwy. 70W · Hildebran, NC 28637 · USA Instructions Printed On Inside OVERVIEW The ELK-941 separates the steady and pulsing voltage from a single alarm output and directs this into two (2) different relay outputs. Steady and pulsing voltage logic is available from most controls that provide only a single alarm output. [. . . ] This is active immediately following the application of a trigger input for 3 to 4 seconds while the ELK-941 verifies whether the input is steady or pulsing. Upon determination of steady or pulse, the appropriate relay will activate and this output will cease. Note: If the trigger input is pulsing, this output will also pulse. J2 IMMEDIATE OUTPUT When an input trigger is first applied, the ELK-941 requires a 3 to 4 second verification time delay to determine if the input is steady or pulsing. If a siren is connected, it may be desirable to immediately activate one of the relays during this delay time. Such uses include closing ring-back, siren test upon arming, etc. Jumper J2 selects which relay will activate (if any) during this time. If Relay 1 or 2 is selected for immediate output, the selected relay will "follow" the trigger. ie: If the trigger is steady, the relay will be steady. If the input is pulsing, the relay will pulse. Once the ELK-941 has verified what type of input is being applied, the appropriate relay will then be activated (which may or may not be the same relay that was selected for immediate output). RELAY 1: With the jumper in this position Relay 1 will turn on during the verification time delay. RELAY 2: With the jumper in this position Relay 2 will turn on during the verification time delay. OFF: With the jumper in this position neither Relay will turn on during the verification time delay. Note: The -P terminal can be used to trigger a piezo or other low current device for audible or visual needs. If the trigger input is pulsing, this output will also pulse. The position of jumper J2 has no effect on the -P terminal. [N/O ] Relay 1 Normally Open contact. This terminal is connected with the COM terminal whenever the relay is ON (activated). This "pole" or switching part of the relay is connected to the N/O terminal when the relay is ON (activated), and to the N/C terminal when the relay is OFF (at rest). [N/C] Relay 1 Normally Closed contact. This terminal is connected with the COM terminal whenever the relay is OFF (at rest). [N/O ] Relay 2 Normally Open contact. This terminal is connected with the COM terminal whenever the relay is ON (activated). [. . . ] J3 = "-" - Negative polarity alarm output (DSC type control). RELAY MODE IMMEDIATE OUTPUT J2 RELAY 1 RELAY 2 OFF 12V STROBE ELK-941 J1 TEMPORAL STEADY TRIGGER POLARITY J3 RELAY 1 RELAY 2 GND +12V +12V GND TRG + CH1 ACTIVE -P N/O COM N/C N/O COM N/C CH2 ACTIVE +12V AUX FROM CONTROL PANEL CONTROL PANEL GROUND ALARM OUTPUT FROM CONTROL Yelp + As shown, this hookup is used to activate a 12V strobe on Relay 2 when a pulsing output is detected. Example shows a DSC-type negative output control. Set J3 to "+" if using a positive output control. Both relays will stay on until input is removed if both a steady and pulsing input is detected. [. . . ]