Dual-Band Digital Optical Repeater
DW-010-7373-08
Installation & Operation Manual -
Preliminary
Dali Wireless
Proprietary and Confidential
26
Rev: 0-2
Feb 2011
0
4.3.2 Cable Installation
Ensure that all low loss RF cables used to connect DRU to the main and diversity antennas are tested and
Insertion Loss and Return Loss information logged.
Ensure continuity and quality of the optical fiber cables that connect DRU with DAU (or other DRU if part of a
daisy-chain network). Conduct necessary testing or obtain valid test data. Professionally clean the fiber
connectors prior connecting to DRU optical interfaces. Refer to Section 7.2 for optical connector cleaning
procedure.
4.3.2.1 Ground Wire Installation
1. Obtain a #6 AWG (4 mm) copper wire of appropriate length and connect one end to included ring lug.
2. Remove hex nut from the ground stud located at the bottom connector panel of the DRU.
3. Secure ground lug end of the ground wire to the ground stud on the unit using hex nut removed in
previous step.
4.3.2.2 RF Cables Installation
4. Obtain four low loss cables of appropriate length, terminated with N-type male connectors.
5. Remove the dust cap from N-type female connectors located on the bottom of the DRU.
6. Attach coaxial cables to antennas (Band 1 prime and diversity and Band 2 prime and diversity), and rout
them to the bottom side of the DRU.
7. Connect RF cables to appropriate DRU RF connectors (Tx/Rx1, RxD1, Tx/Rx2, and RxD2). Apply xx in-
lbs (yy Nm) of torque to secure cables.
8. Weather seal the connectors by first wrapping two layers of electrical tape, followed by two layers of Butyl
(or similar) tape. Tape should extend about one inch beyond the connector.
Note: DRU unit ships with lightning surge suppressors integrated on all four antenna interfaces.
CommScope v. Dali Wireless
IPR2020-01409
DALI WIRELESS Exhibit 2003
Page 26 of 60
