Model 4821/4820 Control/Communicator Installation Manual
1-6 150961
1.4 Agency Requirements
1.4.1 Telephone Requirements
If requested by the telephone company, the following information must be provided before
connecting this device to the phone lines:
This device may not be connected directly to coin telephones or party line services.
This device cannot be adjusted or repaired in the field. In case of trouble with the device,
notify the installing company or return the device to the manufacturer:
Silent Knight Security Systems
7550 Meridian Circle
Maple Grove, MN 55369-4927
800-328-0103 or 612-493-6455
The telephone company may make changes in its facilities, equipment, or procedures that
could affect the operation of the equipment. If this happens, the telephone company will
provide advance notice to allow you to make the necessary modifications to maintain
uninterrupted service.
1.4.2 FCC Warning
This device has been verified to comply with FCC Rules Part 15. Operation is subject to the
two following conditions: (1) This device may not cause radio interference, and (2) This
device must accept any interference received including interference that may cause undesired
operation.
A. Manufacturer: Silent Knight Security Systems
B. Model Number: 4821/4820
C. FCC Registration Number: AC6USA-22755-AL-E
D. Type of jack (to be installed by the
telephone company):
RJ31X
Ringer equivalence: 0.9B
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