Pico Macom ca-30rk1000 Guia Do Utilizador

Rev. 08/03

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 

or

a 

headend combiner ma

y be used to accomplish this purpose.

The 

or 

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 

or 

.

The output of the amplifier is con-

nected to the main distribution line.

The 

and 

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 

.

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 

).

The two 

outputs are combined via a tw

o-way splitter, which is

connected to a 

launch amplifier

. The input levels to the

combiner, whether from a modulator, signal processor or a strip amplifier,

must be at the same amplitude.

It is recommended that assistance be a

vailable to safely install equipment in

equipment racks.

.

Install chassis in equipment rack (equipment rack sold separately) by

supporting the bottom and rear of 

at the desired ele

-

vation in rack.

.

Line up the side holes of chassis with the tapped equipment rack

holes.

.

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.

.

Fasten the bottom screws first, then fasten top screws. (tighten securely).

.

Connect power cord to outlet supplying line power to the amplifier.

.

Connect a cable from the output of the combining system to the IN

connector on the rear of the 

.

.

Connect a cable from the 

connector on the rear of the CA-

to the input of the distr

ibution network.

.

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