User's Manual

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ADCP-75-158 • Issue 1 • July 2003 • Section 2: Description

Page 2-10

3.6 Antenna Cable Connection

An N-type female connector is provided on the exterior bottom side of the RU cabinet for

connecting the antenna coaxial cable. The exterior N-type connector is on the surge side of a

lightning protector that is mounted within the enclosure. On the inside of the enclosure, the

protected side of the lightning protector is also equipped with an N-type female connector. A

coaxial jumper cable (included with the enclosure) is used for connecting the protected side of

the lightning protector to the ANTENNA port on the STM.

3.7 AC Power Wiring and Grounding

The RU outdoor cabinet is equipped with a stub cable for the AC power connections. The AC

power cable provides three wire leads (Load, Neutral, and Ground) that must be connected to a

120 or 240 VAC power source. The AC power cable exits the cabinet though a 3/4-inch NPT

threaded hole located on the bottom of the cabinet. The threaded hole accepts a standard 3/4-

inch AC conduit fitting. A 3/4-inch to 1/2-inch reducer is also included if 1/2-inch conduit is

preferred over 3/4-inch conduit.

From the exit point in the bottom of the cabinet, the AC power cable must be routed through

conduit to an external AC junction box (not provided) where it can be connected to the AC

power wiring. The junction box should be located within two feet of the cabinet and should be

equipped with a 120 VAC GFCI outlet for powering test equipment and/or power tools. If AC

power spikes are likely to occur, the junction box should also include a surge protector to

protect the equipment from damage.

Three wire nuts are included with the cabinet for completing the AC power wiring connections.

The junction box wiring should be connected to the AC power source through a 20 Amp breaker

box (not provided). All AC power wiring should be run within conduit. A grounding lug is

provided on the underside of the enclosure for connecting a separate grounding wire directly to

the cabinet.

3.8 Ventilation

Vent openings are provided in the bottom of the RU cabinet to permit air exchange for cooling.

Air enters the cabinet through an opening in the front/bottom side of the cabinet A Filter

removes dirt particles so that only clean air enters the enclosure. Both the STM and LPA have

cooling fans. The STM has a rear mounted fan that pulls air through the module and exhausts it

toward the rear of the enclosure. The LPA has a fan on the front that draws air into the module

and exhausts it toward the rear of the enclosure. The heated air exits through an opening in the

rear/bottom side of the enclosure.

3.9 User Interface

The RU cabinet user interface consists of the various connectors, fittings, mounting slots, and

switches that are provided on both the interior and exterior of the enclosure. The user interface

points are indicated in Figure 2-4 and described in Table 2-2.

Summary of content (17 pages)

PAGE 1
ADCP-75-158 • Issue 1 • July 2003 • Section 2: Description 3.6 Antenna Cable Connection An N-type female connector is provided on the exterior bottom side of the RU cabinet for connecting the antenna coaxial cable. The exterior N-type connector is on the surge side of a lightning protector that is mounted within the enclosure. On the inside of the enclosure, the protected side of the lightning protector is also equipped with an N-type female connector.
PAGE 2
ADCP-75-158 • Issue 1 • July 2003 • Section 2: Description (7) CWDM POWER CORD (6) WDM/CWDM MOUNTING SLOT (3) DOOR SWITCH (5) STM MOUNTING SLOT (4) LPA MOUNTING SLOT (9) LIGHTNING PROTECTOR (2) AC POWER CABLE (8) FIBER SLACK SPOOLS BOTTOM VIEW OF CABINET (10) FIBER CABLE CONNECTOR (1) AIR INLET FILTER (12) GROUNDING LUG (11) 3/4-INCH NPT THREADED HOLE 18563-B Figure 2-4. Remote Unit Outdoor Cabinet User Interface Page 2-11 © 2003, ADC Telecommunications, Inc.
PAGE 3
ADCP-75-158 • Issue 1 • July 2003 • Section 2: Description Table 2-2. Remote Unit Cabinet User Interface REF NO 4 DEVICE FUNCTIONAL DESCRIPTION 1 Air inlet filter Reusable filter that prevents the entry of dirt particles when outside air is pulled into the cabinet for cooling. 2 AC power cord Provides AC power to the STM. 3 Door switch Indicates to the fault detection and alarm reporting system if the cabinet door is open (major alarm) or closed.
PAGE 4
ADCP-75-158 • Issue 1 • July 2003 • Section 2: Description 16.1 IN. (409 MM) 17.39 IN. (442 MM) 14.15 IN. (359 MM) 18565-A Figure 2-5. Remote Unit Indoor Mounting Shelf 4.2 STM and LPA Module Installation Two mounting slots are provided within the indoor mounting shelf for installing the STM and LPA modules. The mounting slots include tracks that guide each module into the installed position. Separate mounting slots are provided for STM and LPA modules.
PAGE 5
ADCP-75-158 • Issue 1 • July 2003 • Section 2: Description 4.5 Antenna Cable Connections The antenna cable should be routed to the indoor mounting shelf for connection to the STM module. If lightning protection is required, it is recommended that a lightning protector (accessory) be installed near the point where the antenna cable enters the building or enclosure. 4.
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ADCP-75-158 • Issue 1 • July 2003 • Section 2: Description Table 2-3. Remote Unit Outdoor Mounting Shelf User Interface REF NO 5 DEVICE FUNCTIONAL DESCRIPTION 1 STM mounting slot Provides a mounting point for the STM module. 2 LPA mounting slot Provides a mounting point for the LPA module. 3 Grounding lug Provides a connection point for an external grounding cable. 4 AC power cable Provides AC power to the STM. 5 WDM mounting slot Provides a mounting point for the WDM module.
PAGE 7
ADCP-75-158 • Issue 1 • July 2003 • Section 2: Description 18634-B Figure 2-7. Spectrum Transport Module 5.2 Mounting The STM mounts within the RU outdoor cabinet or indoor mounting shelf. Runners on the top and bottom of the STM mesh with tracks. The runners and tracks guide the STM into the installed position. The electrical interface between the STM and LPA is supported by a D-sub female connector located on the rear side of the STM.
PAGE 8
ADCP-75-158 • Issue 1 • July 2003 • Section 2: Description instead connects to a lightning protector that is mounted on the bottom of the cabinet (see Section 3.6). A coaxial jumper cable is provided (included with the enclosure) for connecting the STM to the lightning protector. 5.5 RF Signal Level Adjustment The STM is equipped with a digital attenuator for adjusting the signal level of the forward path RF output signal.
PAGE 9
ADCP-75-158 • Issue 1 • July 2003 • Section 2: Description (1) PORT 1 CONNECTOR (2) PORT 2 CONNECTOR (6) SERVICE CONNECTOR (3) ON/OFF SWITCH (7-13) LED INDICATORS (4) AC POWER CONNECTOR (14) ALARM CONNECTOR (5) DC POWER CONNECTOR (15) ANTENNA CONNECTOR 18636-B Figure 2-8. Spectrum Transport Module User Interface Table 2-4.
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ADCP-75-158 • Issue 1 • July 2003 • Section 2: Description Table 2-4. Spectrum Transport Module User Interface, continued REF NO USER INTERFACE DESIGNATION DEVICE FUNCTIONAL DESCRIPTION 8 STANDBY Multi-colored LED (green/yellow/red) Indicates if the system is in the Normal state (off) Standby state (blinking green), Test state (blinking red), or Program Load state (blinking yellow). See Note.
PAGE 11
ADCP-75-158 • Issue 1 • July 2003 • Section 2: Description 1900 MHz 20 W ATT 18796-A Figure 2-9. Linear Power Amplifier 6.2 Mounting The LPA mounts within the RU outdoor cabinet or RU indoor mounting shelf. Runners on the top and bottom of the LPA mesh with tracks. The runners and tracks guide the LPA into the installed position. The electrical interface between the STM and LPA is supported by a D-sub female connector located on the rear side of the LPA.
PAGE 12
ADCP-75-158 • Issue 1 • July 2003 • Section 2: Description 6.5 Cooling Continuous air-flow for cooling is provided by a fan mounted at the front of the LPA housing. Cool air is pulled into the module from the front and heated air is exhausted out the back. An alarm is provided that indicates if a high temperature condition (>50º C/122º F) occurs or if a fan failure occurs. The fan may be field replaced if it fails. 6.
PAGE 13
ADCP-75-158 • Issue 1 • July 2003 • Section 2: Description 7 INTERFACE PANELS (ACCESSORY) The interface panels are accessory items that are used when multiple BTS’s and multiple HU’s require connection or when RF attenuation is needed between the BTS and HU. Two types of panels are available: the Conditioning Panel and the Duplexing Panel. The Conditioning Panel, shown in Figure 2-11, provides attenuation of the forward path signal to the level required for input to the HU.
PAGE 14
ADCP-75-158 • Issue 1 • July 2003 • Section 2: Description 8 WAVELENGTH DIVISION MULTIPLEXER SYSTEM (ACCESSORY) The Wavelength Division Multiplexer (WDM) system is an accessory product that is used when it is desirable or necessary to combine the forward and reverse path optical signals from one Digivance system onto a single optical fiber. Each WDM system consists of a host module, host module mounting shelf, and remote module. The WDM host module mounting shelf can support two WDM host modules.
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ADCP-75-158 • Issue 1 • July 2003 • Section 2: Description 9 COARSE WAVELENGTH DIVISION MULTIPLEXER SYSTEM (ACCESSORY) The Coarse Wavelength Division Multiplexer (CWDM) system is an accessory product that is used when it is desirable or necessary to combine the forward and reserve path optical signals for up to four Digivance systems onto a single optical fiber. Each CWDM system consists of a Host Module, Host Module mounting shelf, and Remote Module.
PAGE 16
ADCP-75-158 • Issue 1 • July 2003 • Section 2: Description 10 DIGIVANCE ELEMENT MANAGEMENT SYSTEM The Digivance Element Management System (EMS) is a network management tool that provides control and monitoring functions for the Digivance system. The EMS is used to provision and configure new systems for operation, set system operating parameters, get system alarm and status messages, and upgrade the system software.
PAGE 17
ADCP-75-158 • Issue 1 • July 2003 • Section 2: Description 10.2 Service Interface Connection The service interface connection between the EMS computer and the HU or RU requires that the EMS computer be equipped with a DB-9 connector that is configured to provide an RS-232 DCE interface. A straight-through RS-232 interface cable (accessory item) equipped with a male DB-9 connector on one end and a PC-compatible connector on the other end is required to link the EMS computer to the HU.