User Manual

ADCP-75-126 • Issue B • April 2002 • Section 2: Description
Page 2-9
© 2002, ADC Telecommunications, Inc.
23 mm) in diameter. A spool is provided directly above the fiber optic cable entry hole for
storing excess pigtail slack.
In a typical installation, the connectorized end of a mulit-fiber outside plant cable is routed into
the enclosure through the cord connector and the individual fibers are broken out into pigtails.
The pigtails are connected to the optical ports on the STM and the excess pigtail slack is stored
on the fiber storage spool. The stub end of the cable is routed to an external splice enclosure (not
provided) for splicing to the fiber optic cable.
3.5 Antenna Cable Connection
An N-type female connector is provided on the exterior bottom side of the RU cabinet for
connecting the primary antenna coaxial cable. The exterior connector is on the surge side of a
lightning protector that is mounted on the interior bottom side of the enclosure. On the inside of
the enclosure, a second N-type female connector is provided on the protected side of the
lightning protector. A coaxial jumper cable (included with the enclosure) is used for connecting
the protected side N-type connector to the ANTENNA port on the STM.
A diversity lightning protector kit (accessory item) is available if a diversity STM is mounted in
the enclosure. A diversity lightning protector (Catalog # DGVL-000010LADK) is required if a
diversity antenna is installed. A hole is provided in the bottom of the enclosure for mounting the
diversity lightning protector.
3.6 AC Power Wiring Entry and Grounding
A 3/4-inch NPT threaded hole is provided in the exterior bottom side of the RU cabinet for
connecting a standard 3/4-inch AC conduit fitting to the enclosure. A 3/4-inch to 1/2-inch
reducer is also included with the enclosure if 1/2-inch conduit is preferred over 3/4-inch
conduit. The conduit should be installed between the enclosure and an external 20 Amp breaker
box (not provided) and all AC power wiring (three wires required) should be run within the
conduit. Three lead wires (Hot, Neutral, and Ground) are provided within the enclosure for
connection to the AC wiring. Three wire nuts are included with the enclosure for completing the
connection. A grounding lug is provided on the underside of the enclosure for connecting the
RU cabinet to an earth ground source.
The standard RU cabinet is equipped with a 120 VA C Ground Fault Circuit Interrupter (GFCI)
outlet and should only be wired for operation on 120 VAC current. The cabinet may be re-wired
for 240 VAC if required.
3.7 Back-up Battery Kit
A back-up battery kit (accessory item) is available when the application requires that the system
remain operational during an AC power outage. A tray is provided within the enclosure for
mounting the battery. The battery tray includes a heating pad that keeps the battery warm during
cold weather. A temperature sensor regulates the operation of the heating pad and a circuit
breaker provides overcurrent protection. The back-up battery kit includes a wiring harness for
connecting the battery to the STM. During normal operation, the STM provides charging