OPISYS orporated USHR-800NIH iDEN Bi-Directional Amplifier User Manual BACL Modified
OPISYS Incorporated iDEN Bi-Directional Amplifier BACL Modified
Users Manual
OPISYS
USHR-800NIH
Installation and Operations Manual
03/2005
OPISYS, INC.
9201 Irvine blvd
Irvine, California
Tel: (949) 916 5283
Fax: (949) 916 5285
Email: koo@opisys.com
Web: www.opisys.com
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Table of Contents
1. General Information
1.1 Introduction
1.2 Specifications
1.3 Description
2 Installation
2.1 Introduction
2.2 Unpacking and Inspection
2.3 Preparation for Use
2.4 Before Installation
2.5 Antenna Installation
2.6 Bi-directional amplifier Installation
2.7 Connectors
2.8 Installation Example
3 Operation
3.1 Introduction
3.2 Operating Instructions
4 Trouble Shooting
5 Drawings
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1. General Information
1.1 Introduction
This manual provides information pertaining to the installation and operation of
OPISYS’s USHR-800NIH “Ultra Slim Home” bi-directional amplifiers. This unit
is for iDEN modulations in the below frequencies as shown in Table 1-1.
<Table 1-1: USHR-800NIH Bi-directional amplifier >
Model Number Down Link*
Frequencies
Up Link**
Frequencies Modulation
USHR-800NIH
851 ~ 866 MHz
806 ~ 821 MHz
iDEN
*: Down Link (= Forward Path) is from base station to mobile
**: Up Link ( = Reverse Path) is from mobile to base station
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1.2 Specifications
<Table 1-2: USHR-800NIH Specifications>
Item Specifications
Down link 851 ~ 866 MHz
Frequency
Range Up link 806 ~ 821 MHz
Down link +12dBm/Total
Output Power Up link +12dBm/Total
Down link
Gain Up link 65 dB
Down link
Shutdown
level Up link +14dBm/Total
Down link
ALC Range Up link 25dB
Ripple < 7dB
Propagation Delay < 1us
Noise Figure < 7dB
VSWR < 1.8 : 1
P1dB +24 dBm
Output IP3 +40 dBm
Frequency Stability ≤ ±0.05ppm
In/Out Connector N Female
Input Voltage AC/DC Adaptor , DC 5 V/ 1.2 A
Dimensions (L*W*H, inch) 4.7” x 5.3” x 2.3”
Weight ( Pound) 3.1 lb
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1.3 Description
This product is designed for offices, hotel rooms, small parking lots, garages or
small buildings, helping to improve communications signal and coverage by
extending the coverage of a base station.
Outdoor antenna receives from a base station, then USHR-800NIH bi-directional
amplifier amplifies the signal. After amplification, the signal is passed through to
the indoor antennas. Conversely, signals from handsets are amplified and
retransmitted to the base station.
2. Installation
2.1 Introduction
This section provides information for the installation and setup of the USHR-
800NIH bi-directional amplifier. The information consists of procedures for
unpacking, inspection and preparation for the installation, as well as the actual
installation and the setup.
2.2 Unpacking and Inspection
Examine the shipping carton for damage before unpacking the unit. If the shipping
carton is damaged, try to have the carrier’s agent present when the equipment is
unpacked. If visual inspection reveals physical damage(s) to the equipment, you
should send it back for replacement.
Verify that the equipment is complete, as listed under packing slip. Contact
OPISYS with any missing component.
2.3 Preparation for Use
2.3.1 Power Requirements
The power supply of the USHR-800NIH accepts 5 VDC. Power consumption of
the USHR-800NIH is approximately 4.2 Watts.
2.3.2 Operating Environment
The USHR-800NIH is intended for indoor use only. Do not install it where it might
be exposed to the outside elements as this could result in destruction of the unit and
other hazards.
For normal operations, the environmental conditions should be as follow:
Temperature range:
–20 °C to 50 °C, Maximum Humidity: 95 %
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2.4 Before Installation
You will need to determine the following before beginning the USHR-800NIH
installation:
a. Base station location
b. Location where the outdoor antenna is to be installed
c. Location where the indoor antenna is to be installed
d. Location where the USHR-800NIH is to be installed
e. Length and type of coaxial cable needed to connect from the outdoor antenna to
the bi-directional amplifier unit
f. Length and type of coaxial cable needed to connect from the bi-directional
amplifier unit to the indoor antenna
2.5 Antenna Installation
2.5.1 Outdoor Antenna
Select a site for your outdoor antenna, making sure you have enough signal strength
at that location. Using coax cable, connect the antenna to the bi-directional
amplifier. If you are using a directional antenna such as a Yagi type, the antenna
should be installed so that it is in line of sight of the base station. Then, align the
directional antenna toward that direction, and secure the antenna using provided
mounting hardware.
Use of a lightning arrester is highly recommended. By installing a lightning
arrester between the outside antenna and the bi-directional amplifier, you can
protect the bi-directional amplifier unit from electrical surge from lightning.
2.5.2 Indoor Antenna
Install the indoor antenna at a convenient location. It should be free of metallic
obstruction in order to have an effective coverage. Depending on the circumstance
of the installation, either one or a combination of following antennas can be used:
Ceiling mount patch antenna, Wall mount patch antenna, Corner reflector
2.6 Bi-directional amplifier Installation
USHR-800NIH is an indoor bi-directional amplifier. Accordingly, the environment of
the intended installation site needs to be considered. The bi-directional amplifier
must be shielded from moisture, such as rain, and excessive temperatures. The
operating temperatures should be between
-20 °C and 50 °C.
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2.6.1 Turn-On Procedure
Verify all RF connectors are tightened and cables and antennas are secured.
Connect AC/DC Adaptor on the bi-directional amplifier’s DC IN connector. Turn
on the Power Switch. The Power indicator LED should be green. Make sure that no
other LED is illuminated. If any other LED is lit, consult the trouble shooting page
of this manual, or “2.6.2 Antenna Isolation and Alignment” section.
2.6.2 Antenna Isolation and Alignment
USHR-800NIH is equipped with an over drive protection circuit. If the output
power level of reverse path(=Up Link) exceeds prescribed limit, then reverse path is
disconnected and the RX Alarm (RED) is on. Bi-directional amplifier
automatically checks output power level every 1 minute of a 5 minute cycle when
reverse path has over power. If reverse path still exceeds level then shut down
mode continues for another 10 minutes. After 10 minutes, reverse path is switched
on again and it checks output power level again. (Repeats the process)
A. Antenna Alignment
If you are triggering the overdrive alarms at any point, try to increase the isolation
between the antennas by relocating them. The indoor antenna should be placed
physically as far away from the outdoor antenna as practical. If the geometry of the
intended coverage area allows it, you should also try the indoor antenna in such
way that interference between the antennas is at the minimum. If you are using
directional antennas, try to find a location for the indoor antenna where it can cover
the needed area and oriented back to back with respect to the outdoor antenna.
2.7 Connectors
Figure 2-7 shows the connectors and Table 2-7 provides a description of each
connector on the USHR-800NIH unit
<Table 2-7: USHR-800NIH Connectors>
Label Description
DC IN Connect AC/DC Adaptor for supplying DC power to the
unit
TO BASE N-type female connector transmits base station RF,
receives mobile RF, and connects to the outdoor antenna
TO MOBILE N-type female connector transmits mobile RF, receives
base station RF, and connects to the indoor antenna
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<Figure 2-7: USHR-800NIH Connectors>
TX FAIL
RX FAIL
POWER
TO MOBILE
TO BASE
DC IN
OFFON
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2.8 Installation Example
USHR-800NIH can be installed with multiple indoor antennas as shown in Figure
2-8. In this example, a 6-way power splitter was used to split the signal to and from
the indoor antennas.
<Figure 2-8:
USHR-800NIH
Installation Example>
3. Operation
3.1 Introduction
This section provides information for operating the
USHR-800NIH
bi-directional
amplifier.
3.2 Operating Instruction
3.2.1 Power-up
Connect the bi-directional amplifier to AC/DC Adaptor. Turn on Power Switch. If
no FAIL condition is present, only the “POWER” LED will remain lit. The bi-
directional amplifier is then operating properly.
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3.2.2 Fail Status
3.2.2.1 Overdrive Fail
There is one overdrive fail on the unit, for the up link. Over driving occurs when the
RF output power of the bi-directional amplifier exceeds a prescribed limit. This
means that the input RF power level is too high, or the bi-directional amplifier is
oscillating. The condition may be transient, caused by a passing emergency vehicle
emitting a strong signal for example, or permanent, due to a nearby base station. It
may also indicate low isolation between the antennas, which causes the unit to
oscillate (please refer to the section 2.6.2 of this manual for antenna alignment and
isolation.)
The overdrive fail on the USHR-800NIH bi-directional amplifier is design to detect
whether the over driving is transient or permanent. If the output power level of
reverse path(=Up Link) exceeds prescribed limit, then reverse path is disconnected
and the RX Alarm LED (RED) is on. Bi-directional amplifier automatically checks
output power level every 1 minute of a 5 minute cycle when reverse path has over
power . If reverse path still exceeds level then shut down mode continues for
another 10 minutes. After 10 minutes, reverse path is switched on again and it
checks output power level again. (Repeats the process)
4. Trouble Shooting
If the bi-directional amplifier does not operate properly after installation, first make
sure that the installation procedures as described in section 2 of this manual were
followed correctly. Inspect each connection, both RF and AC, and connectors for a
secure fit, checking to see if all the connections are made to the proper ports of the
unit and the antennas.
If the malfunction is due to an alarm condition, refer to the appropriate part of the
section 3.2 of this manual. Corrective actions may be taken for the overdrive
alarms.
There are no user serviceable parts in the USHR-800NIH.
DO NOT OPEN the unit. There is a danger of an electric shock.
Opening the covers of the unit will void all warranties.
To comply with FCC RF Exposure requirement, the antenna must be
kept 20cm away from user.
CAUTION!
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5. Drawings
TX FAIL
RX FAIL
POWER
TO MOBILE
TO BASE
DC IN
OFFON