3. Amplifier Kit
Each Amplifier Kit Includes:
•
Bi-directional remote mounted amplifier
•
DC Power Injector
•
12 VDC, 110/220 VAC Power Supply
•
Stainless Steel U-Bolts and mounting
bracket for amp
•
Installation Manual
Close up of the bracket and mounting
hardware attached to the amplifier.
The following options are also available and must be ordered separately:
DC power cable with 2.1mm plug to flying lead 3 feet long. Used when the
customer provides their own 12 VDC power for the DC injector or amp.
Option to add second power jack on DC injector to enable one 12 VDC PS
that comes with the amp to power both the Injector and the radio or AP.
(Requires a DC jumper cable. See below).
DC jumper cable that connects a radio modem or Access Point to the
second DC power jack on the DC injector box. Radio devices must have a
2.1 mm ID power jack and operate on 12VDC.
Same as above except used for radios and Access Points that have a 2.5
mm ID barrel jack on them.
4. Installation and Cabling Instructions
FCC Notice
To comply with FCC part 15 rules, the proper version of the amp must only be used in systems
that have been FCC certified. The system must also be professionally installed to ensure
compliance with the Part 15 certification. It is the resposibility of the professional installer to
ensure that certified systems be deployed in the United States (or where FCC rules apply).
The use of the amplifier in any other combination (such as co-located antennas transmitting
the same information) is expressly forbidden in accordance with FCC rules CFR47 part
15.204. Please visit our web site (
www.ydi.com
) to see the systems currently certified by the
FCC.
Several key factors unique to their particular installation determine the power level at the input
of the amplifier. The most important consideration is the cable loss in the transmission cable
between the radio and the pole mounted amp. It is important that the installer understand these
and other factors when installing the system.
If you are not familiar with determining power levels within the transmission system, YDI
engineers will assist you in planning your system including selecting the proper cable and
antenna required.
Page 3
CAB-DC
DUAL-DC
DC-2.1-2.1
DC-2.1-2.5
Page 12
Table B
Authorized Cables with Minimum Lengths
NOTE:
This table is for reference only. In order to comply with FCC Part 15
Certification, the installer must insure that actual coax cable used
between the DC injector and the amplifier has at least 3.3 dB of
insertion loss.
Caution:
If the power output from the amplifier e24 dBm or
the antennas used are in excess of 24 dBi gain, the FCC
regulatory limits specified in Part 15.247(b)(3)(i) could be
exceeded.
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NOTE:
1. MPE distance figures are based on a conservative “worst case” prediction, i.e.
+24 dBm into antenna using formula S=EIRP/(4piR2) and no calculaton for duty
factor. In practice the minimum distance will be much shorter.
2. The minimum MPE distance has been calculated for the maximum allowed
Power Density (S) limit os 1.0 mW/cm2 in the Frequency range 1500 - 100,000
MHz for uncontrolled environments (Ref. 2).
Reference:
1. FCC Part 15, sub-clause 15.247 (b)(4)
2. FCC OET Bulletin 65, edition 97-01
3. FCC Supplement C to OET Bulletin 65, edition 97-01
IMPORTANT:
Only mount the
amplifier with the
connectors facing
downward. Do not
mount it with the
connectors facing
sideways or upwards.
