User's Manual

JUNI JF43-E1900/CFN03
CDMA FIBER FED REPEATER OPERATIONS MANUAL
Version 1.17 ⓒ J
uni America Inc. Page 18 of 88
③ FAN Controller: Turns the FAN On/Off by detecting the internal temperature of the
unit and alerting the Control module (②) the current status of the FAN .
④ Duplexer & BPF: Filters out the unwanted signals on the FWD and REV path.
⑤ Low Noise Amplifier (LNA): Performs low noise amplification on received signals.
⑥ Remote Optic Module: Converts the optic signal (from DHU) into RF signal.
Conversely, it converts the RF signal (from the RU) into an optic signal.
⑦ Remote RX SAW Module: Uses the SAW Filter to eliminate all unwanted signals
from the selected frequency and reduces the interference caused by out of band
signals.
⑧ Remote Local Module: Generates and provides the local signal required for RU
RX SAW Module (⑦).
⑨ Remote TX Drive Module: Amplifies the Forward signal and transmits to the LPA
(①), the signal is then amplified once again from the SAW Module(⑦) and
transmitted to the Optic Module(⑥). The reverse path performs down conversion of
the frequency to 1330 to 1390MHz for diversity functions.
⑩ Power Supply: Converts the input power (55 to 88VAC) into DC+27V, DC+15V, DC
+7V and supplies this power to the modules.
⑪ Arrestor: Protects the system against lightning surges. No external lightning
arrestors are required.