OPISYS, INC
USHR-800NI
Installation and Operations Manual
06/2003
OPISYS, INC.
9201 Irvine blvd
Irvine, California
Tel: (949) 916 5283
Fax: (949) 916 5285
Email: koo@opisys.com
Web: www.opisys.com
Table of Contents
1. General Information
1.1 Introduction
1.2 Specifications
1.3 Description
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
Operation
3.1 Introduction
3.2 Operating Instructions
Trouble Shooting
Drawings
1. General Information
1.1
Introduction
This manual provides information pertaining to the installation and operation of
OPISYS’s USHR-800NI “Ultra Slim Home Bi-Directional Amplifier”. This unit is
used at 806 ~ 866 MHz frequencies as shown in Table 1-1.
Model Number
Down Link* Frequencies
Up Link** Frequencies
USHR-800NI
851~ 866MHz
806 ~ 821 MHz
* Down Link (= Forward Path) is from base station to mobile
** Up Link ( = Reverse Path) is from mobile to base station
1.2
Specifications
PARAMETER
Frequency
SPECIFICATION
Down Link
851 ~ 866 MHz
Up Link
801 ~ 821 MHz
Output Power
+ 7 dBm ( 5 mW )
Input Power
- 43 dBm max
Linear Gain
50 dB
Gain Flatness
7 dB max
1 dB Compression
+ 14 dBm
3rd Order Intercept
+ 24 dBm
Forward/ Reverse Shutdown
+10 dBm ( ±1dB)
Noise Figure
8 dB max
Propagation Delay
1 µs max
VSWR
2 :1 max
Impedance
50 Ω
Status LED
GREEN ON : Power Normal
RED ON : Forward or Reverse Fail
Power Consumption
5.2 V / 500 mA
Input Voltage
AC/DC Adaptor, DC 5.2 V / 1A, 5.2 W
RF Connectors
Type SMA Female
Operating
-20 °C to 50 °C
Storage
-30 °C to 60 °C
Temperature
Dimensions( W x H x D , inch)
3.10” x 3.80” x 1.54”
Weight ( Pound )
1.1 lb
1.3
Description
This product is designed for offices, hotel rooms, small parking lots, garages or
small buildings, helping to improve 806 ~ 866 MHz communications signal and
coverage by extending the coverage of a base station.
Outdoor antenna receives signal between 806 MHz and 821 MHz , then USHR800NI 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-800NI
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-800NI accepts 5.1 VDC. Power consumption of
the USHR-800NI is approximately 2.6 Watts.
2.3.2 Operating Environment
The USHR-800NI 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 %
2.4
Before Installation
You will need to determine the following before beginning the USHR-800NI
installation:
a.
b.
c.
d.
e.
Base station location
Location where the outdoor antenna is to be installed
Location where the indoor antenna is to be installed
Location where the USHR-800NI is to be installed
Length and type of coaxial cable needed to connect from the outdoor antenna to
the repeater unit
f. Length and type of coaxial cable needed to connect from the repeater 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 repeater. 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 repeater, you can protect the repeater
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-800NI is an indoor amplifier. Accordingly, the environment of the intended
installation site needs to be considered. The repeater must be shielded from
moisture, such as rain, and excessive temperatures. The operating temperatures
should be between -20 °C and 50 °C.
2.6.1 Turn-On Procedure
Verify all RF connectors are tightened and cables and antennas are secured.
Connect AC/DC Adaptor on the repeater’s DC IN connector. 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-800NI 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 FAIL 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)
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-800NI unit
Label
DC IN
TO BASE
TO MOBILE
Description
Connect AC/DC Adaptor for supplying DC power to the
unit
SMA-type female connector transmits base station RF,
receives mobile RF, and connects to the outdoor antenna
SMA-type female connector transmits mobile RF,
receives base station RF, and connects to the indoor
antenna
DC IN
TO MOBILE
2.8 Installation Example
USHR-800NI 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.
3. Operation
3.1
Introduction
This section provides information for operating the USHR-800NI repeater.
3.2
Operating Instruction
3.2.1 Power-up
Connect the repeater to AC/DC Adaptor. If no FAIL condition is present, only the
“POWER” LED will remain lit. The repeater is then operating properly.
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-800NI 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 FAIL 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 repeater 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.
CAUTION!
There are no user serviceable parts in the USHR-800NI.
User should keep at least 20cm seperation distance from the unit.
DO NOT OPEN the unit. There is a danger of an electric shock.
Opening the covers of the unit will void all warranties.
10
5. Drawings
5.1
Front and Back views
5.2
Top and Bottom views
TO MOBILE
TOP
11
BOTTOM
Side views
DC IN
5.3
12
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