| The
UL Listed 7150 Telephone Line Monitor is a reliable
answer to telephone line tampering.
The
7150 relay constantly monitors telephone line DC voltage
detecting shorted or open telephone lines. If the phone
line is cut or shorted, after a 40 to 60 second delay,
it will activate an LED indicator light and provide
a N/0-N/C output. Its Form C relay contacts can be used
to activate a local alarm or a backup means of communication
to a central station such as long range R.F.
The
7150's high impedance prevents interference with normal
telephone operation. Its relay contacts will reset automatically
when phone line voltage is restored, but the LED will
remain on until the reset button is pressed.
Features
- Monitors
telephone lines without interfering with normal
telephone operation.
-
Built-in delay prevents nuisance alarms.
- Latching
activation indicator.
- Form
C dry contacts automatically restore when phone
line is restored.
Listings:
UL
Power
Requirements: 12 VDC at 20 mA (inactive), I00
mA (active).
Phone
Line Input: Monitors normal 48-52 VDC present
on phone line. Activates 40 to 60 seconds after phone
line is detected in fault. Faulted line will be detected
when phone line voltage falls below 1 VDC and will restore
when voltage returns above 3 VDC.
Input
Impedance: 10 megohm.
Output:
Form C dry contacts rated at 12 VDC/3 amps. Auto reset
on phone line restoral.
Indicator:
Activation LED reset with manual reset button.
Dimensions:
6 3/8 inch x 2 1/8 inch x 1 5/8 inch (16.2 cm x 5.4
cm x 4.1 cm).
Shipping
Weight: 1 lb.
FCC
Registration Number: AC698R-67362-MO-N
Ringer
Equivalence: 0.1 B
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