Andrew Base Station Subsystems Group OBEMICRO3 OneBase Cell Extender Micro-3 Cabinet User Manual

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Document ID	1169545
Application ID	J59RHZ1nTyz2F5zpXF4LcA==
Document Description	Users Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	76.9kB (961298 bits)
Date Submitted	2009-09-15 00:00:00
Date Available	2009-09-15 00:00:00
Creation Date	2009-06-18 22:30:15
Producing Software	Acrobat Distiller 5.0 (Windows)
Document Lastmod	2009-06-18 22:30:15
Document Title	Users Manual

Andrew Corporation
40 Technology Drive
Warren, NJ U.S.A. 07059
Tel: (908) 546-4600
SUBJECT:
OneBase™ Cell Extender Micro-3 Cabinet OBE-1900-M8Y1
Functional Description
FCC ID: S8L-OBEMICRO3
Industry Canada ID: 2237F-OBEMICRO3
AUTHOR:
Robert Urban
03/06/09
Version 1.0
Overview:
The OneBase™ Cell Extender Micro-3 Cabinet OBE-1900-M8Y1 system is small, selfcontained cabinet unit intended to be used in one, two, or three-sector applications for
cell site signal boosting (Y=1,2,3 represents the number of installed PAs). The system
provides high-power, mixed-mode RF front-end functionality of signal amplification and
conditioning for both uplink and downlink cellular base station signals in the PCS
frequency band. The OneBase™ Cell Extender Micro-3 Cabinet OBE-1900-M8Y1
system can be used for a variety of air interfaces including GSM/EDGE, CDMA, and
WCDMA.
Figure 1: Micro-3 Cabinet
Andrew Wireless Solutions – A Commscope Company
Proprietary – Use Pursuant to Company Instructions
Andrew Corporation
40 Technology Drive
Warren, NJ U.S.A. 07059
Tel: (908) 546-4600
System Specifications:
Parameter
Specification
Frequency Band
1900 MHz
Operational
Bandwidth
60 MHz
Operating
Temperature
-40°C to +50°C
Outdoor Application:
Cold start –40°C, Operational spec at –20°C
Output Power
125 Watts
System output power utilizing MSA1900-165
Power Draw
4.5 Kilowatts
Supported Output
Power
Comment
PCS (Personal Communications Services) Band
Rx: 1850-1910 MHz
Tx: 1930-1990 MHz
At maximum power output, in overdrive
40 Watts/carrier for
WCDMA or CDMA
Typical power-per-carrier at the antenna port.
25 Watts/carrier for GSM
or EDGE
In-Band emissions
-13 dBm/MHz
FCC emissions specification
Transmit Path Gain
-10 to +15 dB
Variable gain adjustment range
Receive Path
Insertion Loss
2.0 dB
Typical
Bypass Loss
0.6 dB
Maximum
Functional Blocks:
The following system modules are capable of being replaced in the field using common
tools used by field-support personnel. The primary interfaces of the field replaceable
modules are blind-mate type connections or standard cable connections to appropriate
interfaces within the cabinet assembly.
• Multi-carrier Power Amplifier (MCPA) Module
• Input/Output Duplexer (IOD)
• Power Subsystem: Rectifier Module, Breaker Tray, Fuse Block
• Bypass Switch Module (BSM)
• Fan Tray Subsystem: Fans and Fan Controller
• RF Interface Module (RFIM)
Andrew Wireless Solutions – A Commscope Company
Proprietary – Use Pursuant to Company Instructions
Andrew Corporation
40 Technology Drive
Warren, NJ U.S.A. 07059
Tel: (908) 546-4600
Functional Block Diagram & Cabinet Layout:
For Functional Block Diagram: Refer to “Functional Description”.
RFIM
Fan Controller
Rectifier Modules (4)
Breaker Tray
Fuse Block
MCPA Modules (3)
IOD Modules (3)
Hatch Plate
(interface to BTS
and AC)
BSM (3)
Front
Rear
Cabinet doors and Fan Tray not shown
Figure 2: Micro-3 Cabinet Layout
Andrew Wireless Solutions – A Commscope Company
Proprietary – Use Pursuant to Company Instructions
Andrew Corporation
40 Technology Drive
Warren, NJ U.S.A. 07059
Tel: (908) 546-4600
Alarms:
The OneBase™ Cell Extender Micro-3 Cabinet OBE-1900-M8Y1 system characterizes
alarm severity according the following table.
ALARM
CATEGORY
SEVERITY
Minor
Conditions that do not immediately affect system operation, but lead to more
serious problems if ignored (e.g. fan failure).
Major
Conditions that directly affect amplifier operation (e.g. reduced gain), but allow the
system to continue operating.
Critical
Conditions which result in sector shutdown, preventing any further cellular call
traffic.
MCPA LEDs:
The MCPA module has three (3) LED indicators on the front panel and labeled as
follows:
o “ALARM” (Red)
o “WARNING” (Yellow)
o “ACTIVE” (Green)
The following chart summarizes the various LED conditions, alarm severity, and possible
failure modes.
Andrew Wireless Solutions – A Commscope Company
Proprietary – Use Pursuant to Company Instructions
Andrew Corporation
40 Technology Drive
Warren, NJ U.S.A. 07059
Tel: (908) 546-4600
MCPA LEDs
MCPA LEDs Status
Alarm Severity
Green: “ON”
Yellow: “ON”
Red:
“ON”
Initial Power-up
of MCPA.
Green: “ON”
Normal
Operation
Possible Failure Modes
NONE
LEDs all “ON” simultaneously for about 2 seconds.
NONE
1. MCPA high internal temperature (approximately
between 80°C and 90°C).
Green: “ON”
Yellow: “ON”
Yellow: “ON”
Minor
2. MCPA values on “Micro MCPA Live Display”
software indicating:
--Poor Return Loss (3-8 dB)
--Poor VSWR (2.32 - 5.85)
Major
1. RF Overdrive (gain reduced)
2. DC voltage out of normal range
1. MCPA internal failure
2. RF Overdrive (> 10 dB)
Critical
3. MCPA high internal temperature
(above approximately 90°C).
Red: “ON”
4. MCPA values on “Micro MCPA Live Display”
software indicating:
--Poor Return Loss (0-3 dB)
--Poor VSWR (above 5.85)
Andrew Wireless Solutions – A Commscope Company
Proprietary – Use Pursuant to Company Instructions
Andrew Corporation
40 Technology Drive
Warren, NJ U.S.A. 07059
Tel: (908) 546-4600
Fan Controller LEDs:
Fan Controller Board
LED Status
LED 1, 4: GREEN
Alarm
Severity
No indication
Normal
Operation
LED 2, 3, 5, 6: GREEN
Possible Failure Modes
NONE / Disabled
LED 2: RED
Thermistor shorted or open.
LED 3: RED
Fan #3 failed.
LED 5: RED
Fan #1 failed.
LED 6: RED
Fan #2 failed.
Dry Contact Summary Alarms:
ALARM
Possible Failure Modes
Door Alarm
Intrusion
Fan Alarm
1.
2.
3.
4.
Fan controller loses power.
Fan is spinning at less than 1900 RPM.
Thermistor shorted or open, resulting in no valid thermistor output.
Blocked fan rotor.
Rectifier Alarm
Rectifier failure
Minor
MPCA Minor Failure: See “Table 10”, user defined mapping of Door,
Fan, or Rectifier alarms to Minor.
Major
MPCA Major Failure: See “Table 10”, user defined mapping of Door,
Fan, or Rectifier alarms to Major.
Critical
MPCA Critical Failure: See “Table 10”, user defined mapping of Door,
Fan, or Rectifier alarms to Critical.
Andrew Wireless Solutions – A Commscope Company
Proprietary – Use Pursuant to Company Instructions
Andrew Corporation
40 Technology Drive
Warren, NJ U.S.A. 07059
Tel: (908) 546-4600
Installation and Operation Set-Up
The OneBase™ Cell Extender Micro-3 Cabinet OBE-1900-M8Y1 is shipped from the
factory with all necessary internal cables and wiring. Each unit is factory tested to meet
overall product requirements. As such, installation of the Micro-3 Cabinet involves the
mounting and securing of the cabinet per detailed manual instructions. Power is supplied
to the unit via terminal blocks located in the rear of the cabinet behind the fan tray
assembly. BTS and Antenna port interfacing is provided on the rear patch panel, with
labeled 7/16 DIN connectors.
FCC Statements:
FCC ID: S8L-OBEMICRO3
This device complies with Part 2, 15 and 24 of the FCC Rules. Operation is subject to the
following two conditions: (1) this device may not cause harmful interference and (2) this
device must accept any interference received, including interference that may cause
undesired operation.
Warning
Changes of modifications not expressly approved by the manufacturer could void the
user’s authority to operate the equipment.
RF exposure compliance is addressed at the time of licensing, as required by the
responsible FCC Bureau(s), including antenna co-location requirements of 1.1307(b)(3).
Industry Canada Statements: IC:2237F-OBEMICRO3
1. Quality Norms : The testing of the equipment is carried out as the norms laid in IC
standards.
2. Labeling : OneBase™ Cell Extender Micro-3 Cabinet OBE-1900-M8Y1 when
sold in Canada will have:
(a) The certification number, prefixed by the term "IC: ", i.e. IC:2237F-OBEMICRO3
(b) The manufacturer's name, trade name or brand name, i.e. Andrew Corporation
(c) A model name or number. Model Name = OneBase™ Cell Extender Micro-3
Cabinet Model Number: OBE-1900-M8Y1 (Y=1,2,3 represents the number of installed PAs)
(d) This device complies with RSS-131, RSS-102 of the IC Rules.
3. External Control
The OneBase™ MicroCabinet Cell Extender OBE-1900-M8Y1 does not have any
external controls accessible to the user for any adjustments, to operate in violation of the
limits prescribed in this Standard. Furthermore, information on internal adjustments,
Andrew Wireless Solutions – A Commscope Company
Proprietary – Use Pursuant to Company Instructions
Andrew Corporation
40 Technology Drive
Warren, NJ U.S.A. 07059
Tel: (908) 546-4600
reconfiguration or programmability of the device shall only be made available to service
depots and agents of the equipment supplier and NOT to the public.
4. Exposure of Humans to RF Field : The equipment conforms to RSS-102. RF
Exposure compliance is also addressed at the time of licensing.
5. Multi-carrier operation : Rated output power of the equipment is for multi-carrier
operation, which is 125 Watts maximum total composite. For multiple carriers, the total
output power is distributed as required for each RF carrier. The rating per carrier is
reduced so the total output power is not exceeded. While there is a possibility of singlecarrier use, the maximum output power shall still not exceed 125 Watts. In fact, typical
usage for various carriers is usually no greater than 40 Watts per carrier (see
Specification table).
Andrew Wireless Solutions – A Commscope Company
Proprietary – Use Pursuant to Company Instructions

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Page Count                      : 8
Creation Date                   : 2009:06:19 02:30:15Z
Mod Date                        : 2009:06:19 02:30:15Z
Producer                        : Acrobat Distiller 5.0 (Windows)
Create Date                     : 2009:06:19 02:30:15Z
Modify Date                     : 2009:06:19 02:30:15Z
Metadata Date                   : 2009:06:19 02:30:15Z

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