User manual ELK PRODUCTS ELK-981

[. . . ] Cell-Pack APPLICATION The ELK-981 Cell-Pack is the ideal companion for Cellular Alarm Transceivers. It consists of a metal enclosure, 12 Volt DC power supply/battery charger, and a telephone line fault monitor. [. . . ] Jumpers T1 and R1 should be set in the "Telco Side" position. Connect Transformer and Battery after all wiring is complete. To Control Dialer Connection T1 R1 Refer to the Cellular Transceiver Instructions for Connections J1 Phone Line to Control Battery HOUSE SIDE TELCO SIDE TRANS FORMER 16VAC 12V DC PHONE LINE OUTPUT ALARM RELAY N/C COM N/O -+ J3 Transceiver Optional hookup Bell / Alarm 12 Volts D. C. for Transmission Input Power Input Shunt (if available) + - + - For Future Use Transformer 16. 5 VAC 45 VA * See Note N/C Phone Line Fault Output (dry contacts) Com N/O Bell / Alarm output from control panel + - OPERATION The ELK-981 monitors both the phone line voltage and current to detect a faulted line. This reduces the incidents of false detects. On-hook phone line voltage is around 48 VDC. This voltage drops when the phone is in use (Off-hook), however the telephone instrument is then drawing current on the line. The phone line is considered to be faulted whenever the line voltage falls below 3 volts and the line current draw is less than 18mA. STATUS LED Blinking ON once per second indicates a good phone line and testing is in process. The transceiver is shunted by relay closure across terminals COM and N/C. STATUS LED Steady ON indicates a phone line fault. The relay contacts open and the transceiver is free to transmit. STATUS LED Predominantly On (blinks off ever 3 seconds) is a memory indication of a previous line fault. Reset by briefly shorting the two pins located above the Status LED. The Status LED will once again Blink On if phone line is good. Features and Specifications subject to change without notice. Black Red * Note: Battery (ELK-1250) & Transformer (ELK-TRG1640) Included with ELK-981K Sold Separately for ELK-981 Battery 12 Volt * See Note This device complies with Part 68 of the FCC rules. [. . . ] The termination on an interface may consist of any combination of devices subject only to the requirement that the sum of the Ringer Equivalence Numbers of all the devices does not exceed five. For Technical Support on the Numerex Technologies Digicell Transceiver, call 888-987-5465. P. O. Box 100 · Hildebran, NC 28637 USA · 828-397-4200 · 828-397-4415 FAX http://www. elkproducts. com · email: info@elkproducts. com 03/04 Transceiver Mounting Location for this Model Place Antenna Grommet Here Slide Transceiver Over Mounting Plate to Secure it in Place Place Plug Here Secure Mounting Plate Here Transceiver Mounting Location for this Model Place Plug Here Place Antenna Grommet Here Secure Transceiver with Washer and Nut Here Place Standoff Here [. . . ]