G Way Solutions LABC3390R Bi-Directional Amplifier User Manual

Download:
Mirror Download [FCC.gov]
Document ID	4102642
Application ID	JaSlpd3qy+/+kFktrVUwcQ==
Document Description	User Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	70.58kB (882237 bits)
Date Submitted	2018-12-11 00:00:00
Date Available	2018-12-12 00:00:00
Creation Date	2018-11-21 10:17:48
Producing Software	Acrobat Distiller 8.3.1 (Windows)
Document Lastmod	2018-11-21 09:11:44
Document Title	Microsoft Word - FCC-BDA-LTE!LABC-33!33-90-R-Manual - V1
Document Creator	PScript5.dll Version 5.2.2
Document Author:	Sharon

Installation and
Operating Manual
LTE – Lower A, B & C Bands, Bi‐Directional Amplifier
BDA‐LTE/LABC‐33/33‐90‐R3U15
TABLE OF CONTENTS
Table of Contents
OVERVIEW: ............................................................................................................................... 3
OPERATIONAL DESCRIPTION:.............................................................................................. 3
ELECTRICAL SPECIFICATIONS: ........................................................................................... 4
MECHANICAL SPECIFICATIONS: ......................................................................................... 5
ENVIRONMENTAL CONDITIONS: ........................................................................................ 5
FCC NOTE: ................................................................................................................................. 5
IC NOTE: ..................................................................................................................................... 5
NOTE: .......................................................................................................................................... 5
RF EXPOSURE WARNING: ...................................................................................................... 5
CONNECTIONS: ........................................................................................................................ 6
BDA-LTE/UC-33/33-90-R3U15 Mechanical Outline (Figure 2): .............................................. 7
OPTIONAL ALARM CONDITIONS: ........................................................................................ 7
INSTALLATION: ....................................................................................................................... 8
OPERATION: .............................................................................................................................. 9
FRONT PANEL CONNECTORS (Figure 3) ............................................................................ 10
INNER PANEL UL/DL GAIN ADJUSTMENT....................................................................... 10
DIAGNOSTICS GUIDE............................................................................................................ 11
Page | 2
OVERVIEW:
The BDA-LTE/LABC-33/33-90-R3U15 assembly enhances the coverage area of radio
communications in buildings and RF shielded environments.
The BDA-LTE/LABC-33/33-90-R3U15 has dual RF paths (Forward / Reverse) to
improve coverage in two distinct frequency bands.
The unit features low noise figure and wide dynamic range. It is based on a dual
duplexed path configuration with sharp out of band attenuation allowing improved
isolation between the receiving and transmitting paths.
OPERATIONAL DESCRIPTION:
The BDA-LTE/LABC-33/33-90-R3U15 Downlink path receives RF signals from the
base station, amplifies the signal and transmits the signal into a Distributed Antenna
System at the direction of the mobiles. The signal travels over a DAS medium that
then dissipates the signal to the Mobile subscribers. The BDA-LTE/LABC-33/33-90R3U15 Uplink path receives RF signals at the Mobile side from the DAS system, then
amplifies it, and transmits the amplified signal to the base station. The Uplink and
Downlink occupy two distinct dedicated frequency bands, each Uplink and Downlink
band is 18MHz wide.
For LTE Lower A, B and C Band, the frequency allocations are as follows:
Uplink: 698-716 MHz
Downlink: 728-746 MHz
Four diplexers isolate the paths and route each signal to the proper amplifying
channel.
An Automatic Level Control (ALC) allows for output power limiting. A variable step
attenuator gives 0 – 30 dB of attenuation in 2 dB steps. The use of these controls is
covered in the “OPERATION” section, later in this document.
Page | 3
ELECTRICAL SPECIFICATIONS:
Frequency Range
UL 698-716 MHz
DL 728-746 MHz
G-Wave units are factory tuned, there is no user-serviceable deviation from the
frequency bands listed above.
Pass band Gain @ min attenuation
: 85 dB (Typ.)
Variable Step Attenuator Range
(2-dB steps)
: 0-30 dB
Pass band Ripple
: ±2.0 dB (Typ.)
Noise Figure (Uplink)
: 4.5 dB (Typ.)
@+25°C at max gain
3rd Order Intercept point
Downlink
: +52 dBm (Typ.)
Uplink
: +52 dBm (Typ.)
Output Power (Composite)*
Downlink
: +33 dBm (Typ.)
Uplink
: +33 dBm (Typ.)
Isolation between Up/Down Link
: 100 dB (Min.)
Input/ Output Impedance
: 50 Ohms
*SFDR
: 120 dB/Hz2/3
VSWR (Input/Output)
: <1.5: 1
Power Supply
: 110VAC/0.66 Amps
: 220VAC/0.33 Amps
: 50 to 60 Hz
Page | 4
MECHANICAL SPECIFICATIONS:
Size
: 19 x 15 x 5.2 inch
: (482.6 x 381 x 132.08 mm)
RF Connectors
: N-Type Female
Weight
: 35.0 Lbs. (16 kg.) approx.
ENVIRONMENTAL CONDITIONS:
The unit is designed for indoor applications:
Operating temperature: - 30°C to + 55°C
Storage temperature: - 50°C to + 90°C
FCC NOTE:
The Federal Communications Commission (FCC) has tested this product and found it to
comply with their RF Exposure Requirements, pursuant to FCC Part 27.
IC NOTE:
The Industry Canada (IC) has tested this product and found it to comply with their RF
Exposure Requirements, pursuant to IC RSS-131.
NOTE:
The Manufacturer’s rated output power of this equipment is for single carrier operation. For
situations when multiple carrier signals are present, the rating would have to be reduced by
3.5 dB, especially where the output signal is re-radiated and can cause interference to
adjacent band users. This power reduction is to be by means of input power or gain reduction
and not by an attenuator at the output of the device.
RF EXPOSURE WARNING‐FCC:
In order to comply with the FCC RF exposure requirements, the BDA-LTE/LABC-33/33-90R3U15 antenna installation must comply with the following:
The outdoor antenna (Yagi type or similar directional antenna if off air donor signal used) must
be installed so as to provide a minimum separation distance of 44 cm between the antenna
and persons within the area. (This assumes a typical antenna with gain of [7.5 dBi, VSWR ≤
1.5:1, Zo= 50 ohms).
The indoor antenna (Omni directional) must be installed so as to provide a minimum
separation distance of at least 23 cm between the indoor antenna connected to the RF
booster and the human user’s body within the area. (This assumes a typical wide-beam type
antenna with gain of 0-2 dBi, VSWR ≤ 2:1, Zo= 50 ohms,).
Page | 5
RF EXPOSURE WARNING‐ INDUSTRY CANADA:
In order to comply with the IC RF exposure requirements, the BDA-LTE/LABC-33/33-90R3U15 antenna installation must comply with the following:
The outdoor antenna (Yagi type or similar directional antenna if off air donor signal used) must
be installed so as to provide a minimum separation distance of 64 cm between the antenna
and persons within the area. (This assumes a typical antenna with gain of [7.5 dBi, VSWR ≤
1.5:1, Zo= 50 ohms).
The indoor antenna (Omni directional) must be installed so as to provide a minimum
separation distance of at least 33 cm between the indoor antenna connected to the RF
booster and the human user’s body within the area. (This assumes a typical wide-beam type
antenna with gain of 0-2 dBi, VSWR ≤ 2:1, Zo= 50 ohms,).
CONNECTIONS:
The BDA AC power is accepted through a circular 3-wire female plug with phase, neutral and
ground leads. The AC power is wired to a high efficiency DC switching power supply which is CE
and UL approved. The power supply runs the amplifiers and the LED indicators. The metal
enclosure of the BDA is connected to ground.
A 7-pin circular connector provides failure and Oscillation Detect alarms output dry contacts,
Normally Open and Normally Closed (see diagrams on page 8).
The RF connections are made via two type “N” female connectors. The RF connector labeled
“BASE” must be connected to the antenna pointing towards the base station. The RF
connection labeled “MOBILE” must be connected to the antenna / passive DAS facing the
area to be covered by the BDA.
The RF connections must be made through cables with characteristic impedance of 50 ohms.
The isolation between the base station antenna and the mobile antenna should be at
least 12 dB higher than the BDA gain. Isolation less than this value can cause gain
ripple across the band. Isolation equal to or less than the BDA gain will give rise to
oscillations which will saturate the amplifiers and possibly cause damage to the BDA.
Page | 6
BDA‐LTE/UC‐33/33‐90‐R3U15 Mechanical Outline (Figure 2):
OPTIONAL ALARM CONDITIONS:
(Figure 2a)
The alarm monitors current of both uplink and
downlink amplifiers. An alarm condition will occur if
either uplink or downlink amplifiers are over or
under its current tolerance. Also Oscillation detect
Alarm would be provided on the other pair dry
contacts.
(Relay Shown in Non-Alarm Condition)
Page | 7
INSTALLATION:
DO NOT APPLY A.C. POWER TO THE RHBDA UNTIL CABLES ARE
CONNECTED TO BOTH PORTS OF THE RHBDA AND THE
ANTENNAS.
1. Mount the BDA on the wall with the RF connectors pointing DOWN. Using
appropriate screws and anchors, attach the BDA to the wall at the four mounting holes
on the side flanges.
2. Ensure that the isolation between the donor antenna and the service antenna is at
least 12 dB greater than the BDA gain. (Use the higher of the Uplink and Downlink
gains reported on the BDA test data sheet).
3. Connect the cable from the donor antenna to the BDA connector labeled “BASE”
and the cable from the service antennas to the BDA connector labeled “MOBILE”.
4. Open the main access front panel of the BDA (using the Allen Key located on the
side of the BDA) and verify that both of the attenuator’s are positioned to its maximum
setting (30 dB). Close the main panel.
5. Connect the AC power cord to the BDA and then to the power source. Verify that
the “Power ON” Green LED indicator is illuminated.
Installation of the BDA is now complete. To adjust the gain controls to suit the specific
signal environment, refer to the next section of the manual.
Note: For repeat installations of existing equipment, make sure the attenuation
is positioned to its maximum setting (30 dB). After verification of the
attenuation, follow the above steps starting with step 1.
Page | 8
OPERATION:
Refer to Figure 3 & 3a for adjustment access location, connectors and labels.
Variable Step Attenuator
BDA gain can be reduced by up to 30 dB in 2 dB steps using the variable step
attenuator. Gain adjustment is made with rotary switches accessible via the access
door on the BDA enclosure. Arrows on the shafts of these switches point to the value
of attenuation selected. BDA gain can be determined by subtracting the attenuation
value from the gain reported on the BDA Test Data Sheet for that side of the unit. The
attenuators are labeled for Uplink and Downlink.
ALC (Automatic Level Control)
To minimize intermodulation products, each amplifier in the BDA contains an ALC
feedback loop. The ALC circuit senses the output power and automatically limits it to
the factory preset level of +33 dBm UL and +33 dBm DL.
ALC function is located in each power amplifier. A red LED indicator located on the
Front main panel (see figure 3) illuminates when output power meets or exceeds the
ALC preset point.
To establish proper operating gain on the Uplink and Downlink sides, start with the
Downlink. Observe the red LED indicator on the Downlink amplifier. Units are shipping
with maximum attenuation. Decrease attenuation one step at a time until the red LED
is lit. Then, using the Downlink step attenuator, increase the attenuation until the red
LED goes off. Repeat the process for the Uplink. . This setup should be done under
RF signal transmit for either path the level indicator is accurate to +/- 0.4 dB of the
ALC set point.
G-Wave BDAs will automatically limit the output power of the system to the
established ALC setting of the unit, +33 dBm. An LED indicator will illuminate to
inform the operator that maximum output signal has been achieved during the
gain adjustment process.
Note: Operation of BDA-LTE/LABC-33/33-90-R3U15 at maximum gain with
greater than -40 dBm average power incidents on the MOBILE or BASE ports
could cause damage to the BDA.
Page | 9
DC Power
Connector
FRONT PANEL CONNECTORS (Figure 3)
AC Power
Connector
Ground Pin
Optional Alarm Connector
INNER PANEL UL/DL GAIN ADJUSTMENT
(Figure 3a)
Downlink ALC and
Alarm LED’s
Uplink ALC and
Alarm LED’s
Power LED
Page | 10
Uplink and Downlink
Rotary Attenuators
DIAGNOSTICS GUIDE
The BDA provides long term, care-free operation and requires no periodic maintenance.
There are no user-serviceable components inside the BDA.
This section covers possible problems that may be related to the installation or operating
environment.
Gain Reduction
Possible causes: Defective RF cables and RF connections to antennas, damaged antenna or
Leaky cable.
Excessive Intermodulation or Spurious
Possible causes: Amplifier oscillation caused by insufficient isolation. The isolation between
two antennae is given by the equation:
Isolation = 92.5 + 20 Log (F x D) – Gt – Gr
Where:
F = frequency (GHz)
D = separation (Km)
Gt = transmit antenna gain (in the direction of the receive antenna).
Gr = receive antenna gain (in the direction of the transmit antenna).
For the LTE 750 MHz frequencies, the antenna isolation at 100 m separation is approximately
93.3 dB for Omni-directional antennas or leaky cable (0 dB gain). To increase isolation, the
antennas should have higher directivity and must be pointed away from each other.
Occasional Drop-out of some Channels
Possible causes: One channel with very strong power dominates the RF output of the
amplifier.
Page | 11
Page | 12

---

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.4
Linearized                      : Yes
XMP Toolkit                     : Adobe XMP Core 5.6-c015 91.163280, 2018/06/22-11:31:03
Format                          : application/pdf
Creator                         : Sharon
Title                           : Microsoft Word - FCC-BDA-LTE!LABC-33!33-90-R-Manual - V1
Create Date                     : 2018:11:21 10:17:48-05:00
Creator Tool                    : PScript5.dll Version 5.2.2
Modify Date                     : 2018:11:21 09:11:44-07:00
Metadata Date                   : 2018:11:21 09:11:44-07:00
Producer                        : Acrobat Distiller 8.3.1 (Windows)
Document ID                     : uuid:0f136f7f-5a47-4320-b2c1-539bf8ecde77
Instance ID                     : uuid:391d23ef-b74b-4159-8bb9-3e2eb5212fd6
Page Count                      : 12
Author                          : Sharon

EXIF Metadata provided by EXIF.tools