5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598
TM
EkoMini
BAND
SELECTIVE
INDOOR REPEATER
OPERATOR’S MANUAL
2850 Colonnades Court
Norcross, GA 30071 U. S. A.
Tel: +770.582.0555
Fax: +770.729.0075
EMS Wireless
Disclaimer
Every attempt has been made to make this material complete, accurate, and up-todate. Users are cautioned, however, that EMS Wireless reserves the right to make
changes without notice and shall not be responsible for any damages, including
consequential, caused by reliance on the material presented, including, but not
limited to, typographical, arithmetical, or listing errors.
This product conforms to FCC Part 15. Changes or modifications not
expressly approved by the party responsible for compliance could void the
user's authority to operate the equipment.
RF Exposure
In accordance with FCC requirements of human exposure to
radiofrequency fields, the server and donor radiating elements shall be
installed such that a minimum separation distance of 20 cm and 30 cm,
respectively, is maintained between the radiating element and the general
population.
Safety ConsiderationsWhen installing or using this product, observe all safety precautions during
handling and operation. Failure to comply with the following general safety
precautions and with specific precautions described elsewhere in this
manual violates the safety standards of the design, manufacture, and
intended use of this product. EMS Wireless assumes no liability for the
customer's failure to comply with these precautions.
WARNING
WARNING Calls attention to a procedure or practice, which if ignored, may result
in damage to the system or system component. Do not perform any procedure
preceded by a WARNING until described conditions are fully understood and met.
If You Need Help
If you need additional copies of this manual, or have questions about
system options, or need help with installation and using of the system,
please contact EMS Wireless’ Customer Support Department.
EMS Wireless Customer Support Dept.
2850 Colonnades Court NW, Norcross, GA 30071
Tel: 770 582 0555
EMS Wireless EkoMini Manual
3
EMS Wireless
Service
Do not attempt to modify or service any part of this product other than in
accordance with procedures outlined in this Operator's Manual. If the
product does not meet its warranted specifications, or if a problem is
encountered that requires service, notify EMS Wireless’ customer support
department. Service will be rendered according the EMS Wireless’ warranty
and repair policy. The product shall not be returned without contacting EMS
Wireless and obtaining a return authorization number from the Customer
Support department
When returning a product for service, include the following information:
Owner, Model Number, Serial Number, Return Authorization Number
(obtained in advance from EMS Wireless Customer Support Department),
service required and/or a description of the problem encountered.
Warranty and Repair Policy
The EMS Wireless Quality Plan includes product test and inspection
operations to verify the quality and reliability of our products.
EMS Wireless uses every reasonable precaution to ensure that every device
meets published electrical, optical, and mechanical specifications prior to
shipment. Customers are asked to advise their incoming inspection,
assembly, and test personnel as to the precautions required in handling and
testing ESD sensitive opto-electronic components. Physical damage to the
external surfaces voids warranty.
These products are covered by the following warranties:
1. General Warranty
EMS Wireless warrants to the original purchaser all standard products
sold by EMS Wireless to be free of defects in material and
workmanship for the duration of the warranty period of one (1) year
from date of shipment from EMS Wireless. During the warranty period,
EMS Wireless’ obligation, at our option, is limited to repair or
replacement of any product that EMS Wireless proves to be defective.
This warranty does not apply to any product, which has been subject
to alteration, abuse, improper installation or application, accident,
electrical or environmental over-stress, negligence in use, storage,
transportation or handling.
EMS Wireless EkoMini Manual
4
EMS Wireless
2. Specific Product Warranty Instructions
All EMS Wireless products are manufactured to high quality standards
and are warranted against defects in workmanship, materials and
construction, and to no further extent. Any claim for repair or
replacement of a device found to be defective on incoming inspection
by a customer must be made within 30 days of receipt of the shipment,
or within 30 days of discovery of a defect within the warranty period.
This warranty is the only warranty made by EMS Wireless and is in lieu
of all other warranties, expressed or implied, except as to title, and can
be amended only by a written instrument signed by an officer of EMS
Wireless. EMS Wireless customer support representatives are not
authorized to make commitments on warranty returns.
In the event that it is necessary to return any product against the
above warranty, the following procedure shall be followed:
a. Return authorization shall be received from the EMS Wireless
Customer Support prior to returning any device. Advise EMS
Wireless Customer Support of the model, serial number, and the
discrepancy. The device shall then be forwarded to EMS
Wireless, transportation prepaid. Devices returned freight collect
or without authorization may not be accepted.
b. Prior to repair, EMS Wireless Customer Support will advise the
customer of EMS Wireless test results and will advise the
customer of any charges for repair (usually for customer caused
problems or out-of-warranty conditions).
If returned devices meet full specifications and do not require
repair, or if non-warranty repairs are not authorized by the
customer, the device may be subject to a standard evaluation
charge. Customer approval for the repair and any associated
costs will be the authority to begin the repair at EMS Wireless.
Customer approval is also necessary for any removal of certain
parts, such as connectors, which may be necessary for EMS
Wireless testing or repair.
c. Repaired products are warranted for the balance of the original
warranty period, or at least 90 days from date of shipment.
EMS Wireless EkoMini Manual
5
EMS Wireless
3. Limitations of Liabilities
EMS Wireless’ liability on any claim of any kind, including negligence,
for any loss or damage arising from, connected with, or resulting from
the purchase order, contract, or quotation, or from the performance or
breach thereof, or from the design, manufacture, sale, delivery,
installation, inspection, operation or use of any equipment covered by
or furnished under this contract, shall in no case exceed the purchase
price of the device which gives rise to the claim.
EXCEPT AS EXPRESSLY PROVIDED HEREIN, EMS WIRELESS MAKES
NO WARRANTY OF ANY KIND, EXPRESSED OR IMPLIED, WITH
RESPECT TO ANY GOODS, PARTS AND SERVICES PROVIDED IN
CONNECTION WITH THIS AGREEMENT INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. EMS WIRELESS SHALL NOT BE
LIABLE FOR ANY OTHER DAMAGE INCLUDING, BUT NOT LIMITED TO,
INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT
OF OR IN CONNECTION WITH FURNISHING OF GOODS, PARTS AND
SERVICE HEREUNDER, OR THE PERFORMANCE, USE OF, OR
INABILITY TO USE THE GOODS, PARTS AND SERVICE.
EMS Wireless test reports or data indicating mean-time-to-failure,
mean-time-between-failure, or other reliability data are design guides
and are not intended to imply that individual products or samples of
products will achieve the same results. These numbers are to be used
as management and engineering tools, and are not necessarily
indicative of expected field operation. These numbers assume a
mature design, good parts, and no degradation of reliability due to
manufacturing procedures and processes.
EMS Wireless EkoMini Manual
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EMS Wireless
EkoMini™ Manual
Description
The EkoMini is a band selective, bi-directional amplifier unit and was designed to
provide enhanced RF coverage for wireless systems in small facilities. Usage includes
providing coverage in retail stores, offices, warehouses, restaurants, homes, etc.
The EkoMini is housed in an indoor mountable enclosure, and is powered with a
regulated wall mountable power supply.
The EkoMini supports most system protocols including CDMA, GSM/PCS1900 and
TDMA and is available in models that cover all licensed 1.9 GHz PCS bands A through
F, ESMR/SMR 806-866 MHz and Cellular 821 to 894 MHz. Band selective filtering in
both uplink and downlink signal paths is accomplished with down conversion to an
intermediate frequency and SAW filtering to provide maximum selectivity from out of
band carriers.
The EkoMini features auto set-up, lightweight compact enclosure, optional remote
alarming, excellent electrical specifications, high reliability and cost-effective pricing.
Functionality
In order to function properly, during initial set-up the downlink signal must be presented
to the EkoMini. Without the downlink signal, the unit will not operate properly.
The EkoMini is capable of automatically adjusting its own signal gain levels up to the
maximum output power levels. The EkoMini detects the downlink output power and
adjusts the level for 20-dBm composite output power and continues to monitor and
reset the gain as required for proper system performance. For example, when a
CDMA protocol system is being amplified, there could be an error in set-up initially
resulting from only pilot sync, and paging Walsh codes being present on the RF carrier.
The EkoMini will reduce the system gain until no signal is received that will exceed the
output power setting. This prevents the EkoMini from setting up to a higher power
level than actually desired if all of the Walsh codes were present. The gain does not
continually change to maintain an output power of 20 dBm (AGC) since this would
defeat and fight the benefits of power control in the system. The user may reduce or
limit the power output level by adjusting the peak power limit as described below. The
user peak power switches will set the unit’s output power up to 14 dB below the
maximum power output of 20 dBm; the user interface to control this feature is the peak
power switches.
EMS Wireless EkoMini Manual
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EMS Wireless
The EkoMini has 30 dB of gain control in the uplink and downlink signal paths. This
gain is controlled by two methods. Up to 14 dB can be controlled by adjusting the user
peak limit switches located behind an access plate on the side of the unit to limit the
maximum output power level. The uplink and downlink attenuators are controlled by
the internal microprocessor to adjust the maximum gain of the unit for both paths. The
uplink and downlink signal paths are adjusted to the same setting by the
microprocessor unless the user offsets, reduces the gain in the uplink signal path. The
user has control to reduce the uplink gain by 6 dB, this can be used to balance the
uplink and downlink paths as well as reduce contribution of noise to the base station
receivers. See Figure 1 below.
12345
678
OFF
RESET
12345
678
COVER PLATE
REMOVED
ON
Figure 1.
Switch Settings. Orientation of the switches for on/off. The dip switches are located
under the plate on the side of the unit.
Downlink Peak Power Limit
Switches
Power Limit (dBm) Six Seven Eight
20 off off off
18 on off off
16 off on off
14 on on off
12 off off on
10 on off on
8 off on on
6 on on on
EMS Wireless EkoMini Manual
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