Elk products ELK-980 User Manual
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For more information contact your local Distributor or:
ELK PRODUCTS,INC 828-397-4200 FAX 828-397-4415
http://www.elkproducts.com Email: info@elkproducts.com
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Speakers & Sirens
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Siren & Voice Drivers
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Relay Modules
Power Products
Accessories
Telephone Line
Fault Monitor
ELK-980
APPLICATION:
The ELK-980 triggers a relay output upon sensing a dead telephone line. Circuitry monitors
phone line voltage as well as current in order to
protect against false sensing. It installs easily
between the incoming telephone block and the
equipment using standard 8 conductor modular
cables (not supplied).
Telephone Line
Fault Monitor
ELK-980
FEATURES:
•Detects a Faulted Telephone Line.
•Monitors Phone Line Voltage and Current.
•Selectable Time Delay period on the relay.
•Built-in LED displays Status / Fault Memory.
•Unit is Powered by 12 or 24 Volts D.C.
•Provides Form "C" Relay Output on Fault.
•Dual RJ31/38X 8 Position Modular Jacks.
•Lifetime Limited Warranty, call for details.
SPECIFICATIONS:
•Operating Voltage: 12 or 24 Volts D.C.
•Current Draw: 30mA.
•Dimensions: 4.4" x 3.0" x 1.125".
•Relay Contact Rating: 1A @ 250VAC.
•Requires (2) 8 Pin Modular Cables
(not included).
This device complies with Part 68 of the FCC rules. FCC Reg. No.
5K6USA-25252-KX-N Ren No. 0.0B. It has been tested and found
to comply with the limits for a Class B digital device, pursuant to
Part 15 of the FCC rules. See label on ELK-980 for Canadian DOC
Certification Number.
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
INSTALLATION
1. Connect the ELK-980 to the incoming phone jack using a standard 8 wire full modular "male to male" phone cord (J2).
2. Connect the security equipment using a second 8 wire cord (J1). Depending on the equipment, this cord may be identical or
it may have a male plug on one end and spade terminals on the other end. (PHONE CORDS ARE NOT SUPPLIED)
3. Connect two (2) wires from the ELK-980 to 12 Volts D.C. To power from 24 VDC, move Jumper JP3 to the 24V position.
4. Connect two (2) wires from the relay output to the device that is to be activated when a dead phone line is detected.
Option: Power and relay connections can be made using the four (4) extra wires in modular cord J1. This requires a cord
with a male plug on one end and spade terminal wires on the other. This is not possible if the security equipment requires a
male plug ended cord. See FIGURES 1 and 2 below for details on the various jumper options and wiring configurations.
OPERATION
A typical on-hook phone line will measure around 48 volts. The voltage is lower during a call in process (off-hook), however the
telephone instrument will then draw current on the line. The ELK-980 utilizes both telco voltage and current to properly detect a
faulted line while reducing incidents of false detects. The ELK-980 considers the phone line to be faulted whenever the
line voltage falls below 3 volts and the line current draw is less than 18mA.
PHONE LINE OK - STATUS LED blinks once per second as line is tested. Relay energized, contacts COM and NC are closed.
PHONE LINE FAULT - STATUS LED steady ON. Relay de-energized, contacts COM and NC are open, COM and NO are closed.
FAULT MEMORY - Upon restoral of a phone line fault the LED remains predominantly ON and blinks OFF once every 3
seconds. To reset memory indication, momentarily short (for 2 seconds) the two small pins beside the
STATUS LED. LED should return to 1 blink per second if phone line is OK.
FIGURE 1: USING SCREW TERMINALS AND WIRES FOR POWER AND RELAY
JUMPERS JP2 AND JP4 MUST BE SET AS SHOWN FOR THIS CONFIGURATION
JUMPER JP2: POWER HOOKUP
YES
NO
SET TO "NO" TO
CONNECT POWER
USING POS. & NEG.
SCREW TERMINALS
JUMPER JP3: INPUT VOLTAGE
THE ELK-980 CAN BE
POWERED FROM A 12V OR
24VDC POWER SUPPLY
24V
12V
JUMPER JP4: SUPERVISION HOOKUP
ABC
SET JUMPER ON "B"
THIS CREATES A CLOSED
LOOP ON WIRES 2 & 7 OF J1
SECURITY/PHONE
EQUIPMENT
MALE PLUG MAY
BE REQUIRED WITH
SOME EQUIPMENT
TO J1
3 & 6 (NOT USED)
2 & 7 (OPTIONAL)
PLUG TAMPER LOOP
AUX
POWER
24HR N/C
ALARM
ZONE
RING
TIP
TELCO
+12V AUX POWER
R1
T1
NEGATIVE (GND)
ZONE INPUT
ZONE (COM)
FIGURE 2: USING WIRES IN PHONE CORD J1 FOR POWER AND RELAY
JUMPERS JP2 AND JP4 MUST BE SET AS SHOWN FOR THIS CONFIGURATION
JUMPER JP2: POWER HOOKUP
YES
NO
SECURITY/PHONE
EQUIPMENT
TELCO
24HR N/C
ALARM
ZONE
AUX
POWER
SET TO "YES" TO
HOOKUP POWER USING
WIRES 3 & 6 ON J1
RING
TIP
R1
T1
ZONE INPUT
ZONE (COM)
NEGATIVE (GND)
+12V AUX POWER
WIRE WIRE
NO. COLOR
BLACK3
YELLOW
6
ORANGE
2
BLUE
7
RED4
GREEN
5
SLATE
1
BROWN
8
CORD MAY BE
(MALE TO MALE) OR
(MALE TO SPADE)
WIRE WIRE
NO. COLOR
4 RED
5 GREEN
1 SLATE
8 BROWN
7 BLUE
2 ORANGE
3 BLACK
6 YELLOW
MODULAR CABLE
(MALE TO SPADE)
ELK-980
Telephone Line
Fault Module
YES
JP2
NO
8 PIN
JACK
OUT
J1
J1
24V
JP3
8 PIN
JACK
IN
J2
STATUS
J2
JP5: MEMORY RESET
MOMENTARILY SHORT
TO RESET LINE FAULT
MEMORY
JUMPER JP3: INPUT VOLTAGE
THE ELK-980 CAN BE
POWERED FROM A 12V OR
24VDC POWER SUPPLY
ELK-980
Telephone Line
Fault Module
JP2
YES
NO
8 PIN
JACK
OUT
J1
J1
8 WIRE QTR.
REQUIRED
JP1
24V
JP3
8 PIN
JACK
IN
J2
STATUS
J2
JP5: MEMORY RESET
MOMENTARILY SHORT
TO RESET LINE FAULT
JP1
12V
K1
D7
RESET
JP4
12V
D7
RESET
MEMORY
A
JP4
5 MIN
30 SEC
JP5
24V 12V
A
BC
5 MIN
30 SEC
JP5
BC
N/O COM N/C
ALARM RELAY
POWER
NEG POS
8 WIRE FULL
MODULAR CABLE
(MALE TO MALE)
N/O COM N/C
ALARM RELAY
POWER
NEG POS
8 WIRE FULL
MODULAR CABLE
(MALE TO MALE)
JUMPER JP1: DELAY AFTER FAULT
SETS TIME DELAY BEFORE RELAY
OPENS AFTER LINE FAULT
K1 RELAY IS ENERGIZED WHILE
PHONE LINE IS GOOD (CLOSED
CIRCUIT: COM TO NC)
(ELK-950 Recommended)
RJ31X JACK
R1
1
342
678
T1
R
5
T
JUMPER JP4: RELAY HOOKUP
A
B C
SET JUMPERS ON "A & C" TO
CONNECT RELAY NC & COM
USING WIRES 2 & 7 ON J1
(CLOSED CIRCUIT ONLY)
RELAY OPENS ON FAULT
JUMPER JP1: DELAY AFTER FAULT
SETS TIME DELAY BEFORE RELAY
OPENS AFTER LINE FAULT
THESE TERMINALS ARE NOT
USED IN THIS CONFIGURATION
(ELK-950 Recommended)
RJ31X JACK
R1
1
342
678
T1
R
5
T
HOUSE
PHONES
HOUSE
PHONES
5 MIN
30 SEC
INCOMING
TELCO
LINE
5 MIN
30 SEC
INCOMING
TELCO
LINE
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