Installation Procedure - Pico Macom PFAM550 Installation And Operation Manual

PFAM550 Manual.qxd 7/29/03
Installation
It is recommended that assistance be available to safely install equipment in
equipment racks. Chassis must be fastened securely in equipment rack
before populating with modules.
1. Install chassis in equipment rack (equipment rack sold separately) by
supporting the bottom and rear of PFAM550 at the desired elevation
in rack.
Line up the side holes of chassis with the tapped equipment rack holes.
2.
3. Insert the provided screws through the side holes in chassis and
thread into the tapped equipment rack holes.
4. Fasten the bottom screws first, then fasten top screws (tighten
securely).
5. Install a short F-type jumper cable (provided) between the IF output
and IF input connector on the rear of the PFAM550 (Required for
proper operation).
6. Connect a cable from the output of the video source to the video
input connector of the PFAM550.
7. Connect a cable from the output of the audio source to the audio
input connector of the PFAM550.
8. Connect a cable from the output RF connector of the PFAM550 to the
input of the combining system.
9. Remove the channel select access panel on the front of the
PFAM550.
10. Select the desired output channel by using a plastic screw driver to
set the DIP switches using the included chart.
11. Connect power cord to receptacle supplying uninterrupted line power
(LED on front panel will illuminate).
12. Connect a cable between the front panel output test point and a
spectrum analyzer or signal level meter. Measure the video and aural
carrier level.
13. Adjust the aural carrier level to 15dB below the level of the video
carrier by slowly rotating the VIDEO AUDIO RATIO adjustment on the
front panel of the PFAM550.
14. Connect a cable between the combining system test point and a
spectrum analyzer or signal level meter. Measure the video and aural
carrier level of the PFAM550 and adjacent channels.
15. Adjust the Output level of the PFAM550 to match the video and audio
carrier levels of adjacent channels by adjusting the OUTPUT LEVEL
adjustment on the front panel of the PFAM550.
+
LANGUAGE AUDIO OUTPUT
DATA CLOCK MONO LEFT
_
+ + _ GND + _ + _
PR4200IRD SATELLITE RECEIVER
RF OUT
PFAM550 MODULATOR
Downloaded from www.Manualslib.com
2:12 PM Page 7
From Satellite Antenna
950-1750MHz
Audio Output Connection:
Center Conductor to Mono+(Positive)
Shield to Mono-(Negative)
VIDEO OUT
+ +
VIDEO COMPOSITE 70 MHz
OUT OUT
AUDIO OUTPUT LEVEL
VIDEO
RIGHT
+ _ L R MONO LEVEL
IN OUT
INV NOR
IF IN IF OUT VIDEO IN AUDIO IN
CAUTION:
FOR CONTINUED PROTECTION AGAINST FIRE
HAZARD, REPLACE ONLY WITH SAME TYPE 0.5A 125V FUSE
AUDIO IN
RF OUT to TV or
Distribution System
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Installation Procedure

PFAM550
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 may be used to accomplish this purpose.
The PHC-12G or PHC-24G passive 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 active 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 two-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.
V
PFAM550
A
RF +10dBmV
SP860
IN
+14dBmV
RF
XBS
IN +10dBmV
V
PFAM550
A
RF +10dBmV
SP860
IN
+14dBmV
RF
XBS
+10dBmV
IN
+
RF IN FUSE
AC25OV
18V 250mA
950-1450
1/2A
MHz LNB POWER
OUT
117V
ON OFF .35A
H V
60Hz
V
PFAM550
A
RF
+10dBmV
SP860
IN
125VAC AC117V
600W MAX
0.5A 60Hz/35W
FUSE
+14dBmV
RF
XBS
IN +10dBmV
Ph: 800-421-6511
+52dBmV
Ch. 2
PHC-12G
-18dB
+36dBmV
+60dBmV
+52dBmV
Ch. 3 6dB PAD CA-30RK550
ATTENUATOR PAD
+52dBmV
Ch. 4
+55dBmV
C h. 2
CHC-16U/550
+6dB
to
+12dB
+55dBmV +65dBmV
C 3 h.
+60dBmV
C 4 h.
PAD
ATTENUATOR PAD
Ch. 2
+50dBmV
+43dBmV
Ch. 4
EVEN CHANNELS
+50dBmV
+39dBmV
Ch. 3
+43dBmV
+50dBmV
ODD CHANNELS
www.picomacom.com
+60dBmV
CA-30RK550
8dB PAD
ATTENUATOR PAD
7
Rev. 07/03