Maintenance; Decreased Performance Due To Contamination - Pico Macom PRRSeries Owner's Manual

PICO MACOM
6.

Maintenance

The PRR receiver contains no internal user adjustments or maintenance points.

6.1 Decreased Performance Due to Contamination

The most likely cause of decreased RF signal quality is contamination in the OPTICAL IN con-
nector. The optical jumper connectors may be contaminated by the slightest touch to human
skin or other apparently clean surfaces. This contamination is transferred in to the PRR bulk-
head connector and remains when the jumper is removed from the PRR receiver. Over time, it
will cause decreased and intermittent input levels. Users may correct this condition as follows
using commonly available fiber cleaner kits. One possible source is Fiber Instrument Sales,
www.fiberinstrumentsales.com.
1. Remove fiber jumper from OPTICAL IN connector
2. Unplug unit from power source. Open top cover by removing 12 screws, sliding top plate back
and lift at rear. Find and remove internal fiber connector at OPTICAL IN bulkhead connector
and set aside. Exercise care that you do not bend or damage the internal fiber.
3. Clean bulkhead connector using standard fiber cleaning tools such as Optipop 2.5mm stick
cleaner. Slide stick into the bulkhead and scrub contamination of the bulkhead. A less effec-
tive solution is to use canned (clean) air with nozzle to blow contamination out of the bulk-
head. Do not use cotton swabs which leave cottons debris.
4. Clean the internal fiber connector using handheld fiber connector cleaner (as shown earlier in
this manual) and insert directly into the bulkhead connector until fully seated. If using FC type,
screw ferrule onto bulkhead connector until snug.
5. Clean and insert protective cover in inside of bulkhead connector if an external fiber connector
is not to be plugged into the PRR immediately.
6. Replace PRR top cover and snug 12 screws. Do not over tighten. Replace in rack and connect
power cord.
7. Clean external fiber (jumper) connector using handheld fiber connector cleaner (as shown ear-
lier in this manual) and insert directly into the bulkhead connector until fully seated. If using
FC type, screw ferrule onto bulkhead connector until snug.
CONTACT US 858.546.5050
Fiber Optic
www.picomacom.com
Series
1