User Manual

AirLink T1/E1 Installer’s Guide
Supplement - U.S./Canada Installation Rules
2 Rev. A - 4/95
United States Installation Regulations
FCC Notice to Users
Federal Communications Commission (FCC) Rules on spread spectrum devices,
such as the AirLink T1 or AirLink E1, require that you be notified of the
following:
FCC regulations require that this device be professionally installed by a person
knowledgeable in electronics and trained in the correct installation of this
device.
All interface cables must be shielded.
Operation of this device is subject to the following two conditions:
(1) This device may not cause harmful interference.
(2) This device must accept any interference that may cause undesired
operation.
Changes or modifications not expressly approved by Cylink Corporation can
void the user’s authority to operate the equipment.
Installation Requirements
Proper planning and installation must be done by professionals to achieve best
performance and to assure compliance with FCC rules and other regulations.
These regulations restrict both the output power at the AirLink T1/E1 antenna
connector and the power radiated from the antenna. They do this with a
complex set of requirements over a wide frequency range, both above and below
the frequency band of operation.
Section 15.247 of the Federal Communications Commission’s Rules and
Regulations require that the Effective Isotropic Radiated Power (EIRP) of this
installation be limited to no more than 36 dBm (6 dBW).
The FCC has granted Cylink a waiver to this limit when the AirLink T1/E1 is
installed with Cylink’s antennas. The waiver permits the AirLink T1/E1 to be
set to any power level within its range, i.e., up to 20 dBm.
NOTE When antennas other than those sold by Cylink are to be used for the AirLink T1/E1, the
36 dBm EIRP limit applies.