Amplifier Replacement, Out of Service
•
When an amplifier must be replaced in an Out of Service
condition, do the following:
a) Unplug amplifier’s power connector.
b) Disconnect input and output SMA cables.
c) Disconnect BNC cable from DC monitor point.
d) Remove mounting hardware (6 screws).
e) Remove amplifier.
•
To install the replacement amplifier:
a) Mount the amplifier on the panel securing with
mounting hardware.
b) Connect the BNC cable to DC monitor point.
c) Connect input and output SMA cables.
d) Check all coax connections for tightness (8 in/lbs)
e) Plug-in the amplifier's power connector.
f) Verify operation by measuring power at SMA
power monitor.
g) Set output power by adjusting AGC/ALC.
Amplifier Replacement, In Service
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For Repeater with 1 or 2 Amplifiers only, such as:
RF-2000E-01, -03, -21, 41, -43
RF-2000EW-11, -14, -13, -16, -31, -34,
-51, -54, -53, -56
•
When an amplifier must be replaced while the repeater is
in service (eg. soft failure), do the following:
a) Mount a temporary spare amplifier in and oriented
in the same input/output direction as the amplifier
to be replaced.
b) Remove the SMA terminations from the coaxial circula
tors in series, identified by F1 or F2, with the amplifier
to be replaced (shown in Figures 1.1 and 1.2).
c) Connect the flexible coaxial cables or semi-rigid
coaxial cables (part of the sparing kit) from the
input(RX) coax circulator open port to the temporary
spare amplifier’s input SMA. Likewise connect the
output(TX) coax circulator open port to the temporary
spare amplifier’s output SMA connector.
d) Connect the DC leads from the temporary spare
amplifier using the power adapter in the sparing kit to
the “A” battery if replacing amplifier A1, or “B” if
replacing amplifier A2.
RF-2000E/EW Repeater
RF-2000E/EW Repeater
Website
www.peninsulaengineering.com
e) Disconnect the input coaxial cable from the amplifier
to be replaced. The signal is now carried in the
temporary spare amplifier, but may be 20 dB down.
f) Unplug the power connector of the amplifier to
be replaced.
g) Disconnect the output coaxial cable from the amplifier
to be replaced.
h) Re-set the output power of the temporary spare
amplifier by adjusting its AGC/ALC.
i) Remove BNC cable from DC monitor point of the
replaced amplifier to the temporary spare amplifier.
j) Unscrew mounting hardware (6ea) and remove the
defective amplifier.
•
To install a replacement amplifier in service:
a) Mount the amplifier on the panel securing with
mounting screws.
b) Connect BNC cable to DC monitor point.
c) Connect the output coaxial cable to the replacement
amplifier’s output. Signal level will drop 20 dB.
d) Plug in the amplifier’s power connector.
e) Connect the input coaxial cable to the replacement
amplifier’s input. Signal level should be close to
normal. Set power by adjusting AGC/ALC.
f) Remove the power connections from the temporary
spare amplifier.
g) Disconnect the flexible or semi-rigid coax cables
from the coax circulators and from the temporary
spare amplifier.
h) Replace the SMA terminations on the coax circulators.
Check the output power of the amplifier. Re-set its
power by adjusting AGC/ALC ifneeded.
i) Remove the temporary spare amplifier.
CAUTION
When operating with a temporary spare amplifier, due to
unpredictable reflections within the RF-2000E/EW, its
performance may be degraded somewhat from normal;
particularly in high capacity digi-tal and analog systems.
Be sure the AGC/ALC is set for the correct power level
in your system.
Return Procedure
•
Once its determined that a unit is faulty, contact Peninsula
Engineeing Repair Department at 1-925-901-0103. A repre-
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