CA-30RK1000
7
Rev. 08/03
Ph: 800-421-6511
www.picomacom.com
Installation Pr
ocedure
Signal Combining Methods
PICO MACOM
recommends connecting the headend components in the
following manner: Each of the modulators, signal processors or strip ampli-
fiers output are connected to a combining network. Either a
PHC-12G
or
a
PHC-24G
headend combiner ma
y be used to accomplish this purpose.
The
PHC-12G
or
PHC-24G
passiv
e headend combiner consists of two
rows of directional couplers combined by a hybrid splitter. Normally, the
odd channels are combined on one row while even channels are combined
on the other row of directional couplers for maximum isolation. The output
of the combiners may be connected to the input of a launch amplifier such
as a
CA-30RK550
or
CA-30RK1000
.
The output of the amplifier is con-
nected to the main distribution line.
The
CHC16U/550
and
CHC16U/860
sixteen channel activ
e combiners
provides both signal combining and post amplification of the headend
signals. Up to 16 channels may be combined using the
CHC16U
.
The
combiner gain is 15 dB per channel.
A 24 channel system hook-up is shown. (The same combining result may
be accomplished by using a single
PHC-24G
).
The two
PHC-12G
outputs are combined via a tw
o-way splitter, which is
connected to a
CA-30RK1000
launch amplifier
. The input levels to the
combiner, whether from a modulator, signal processor or a strip amplifier,
must be at the same amplitude.
Installation
It is recommended that assistance be a
vailable to safely install equipment in
equipment racks.
1
.
Install chassis in equipment rack (equipment rack sold separately) by
supporting the bottom and rear of
CA-30RK1000
at the desired ele
-
vation in rack.
2
.
Line up the side holes of chassis with the tapped equipment rack
holes.
3
.
Insert the provided screws through the mounting holes at the
extreme left and right of faceplate and thread into the tapped equip-
ment rack holes.
4
.
Fasten the bottom screws first, then fasten top screws. (tighten securely).
5
.
Connect power cord to outlet supplying line power to the amplifier.
6
.
Connect a cable from the output of the combining system to the IN
connector on the rear of the
CA-30RK1000
.
7
.
Connect a cable from the
OUT
connector on the rear of the CA-
30RK1000
to the input of the distr
ibution network.
8
.
Using a non-metallic flat blade screwdriver adjust the gain and tilt
controls on the front panel of the amplifier to meet system design
requirements.
CA-30RK1000 Manual.qxd 9/9/03 1:28 PM Page 7
