BTS2400A
Installing the Low Power Base
Station
Broadband Wireless Access System
Part Number: 104-0046-0001
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BaseConnect, Expedience, NetProvision, and ProvisionLink are trademarks of NextNet Wireless, Inc.
©2004 NextNet Wireless, Inc. All rights reserved.
The Low Power Base Station must be professionally installed to ensure that all regulatory requirements are
met. These include but are not limited to: local building and safety codes, National Electrical Code, and the
FCC rules and regulations.
The NextNet Wireless Low Power Base Station is a fixed product that operates as a point-to-point wireless
data link. As such, this product is only authorized to operate as manufactured by NextNet Wireless and cannot
be modified to operate in any other manner. Installers must ensure that this product complies with the FCC
rules. Modifications to this product would be in violation of the FCC rules detailed in 47CFR15.247(b)(3)(iii)
which states: Fixed, point-to-point operation, as used in paragraphs (b)(3)(i) and (b)(3)(ii) of this section,
excludes the use of point-to-multipoint systems, omnidirectional applications, and multiple co-located
intentional radiators transmitting the same information. The operator of the spread spectrum intentional
radiator or, if the equipment is professionally installed, the installer is responsible for ensuring that the system
is used exclusively for fixed, point-to-point operations.
WARNING: This equipment has been tested and found to comply with the FCC guidelines as found in
47CFR1.1310 for Radio Frequency Radiation Exposure Limits as detailed below. A minimum of 36
centimeters or 14 inches of separation between the base station antenna and all persons must be maintained.
Radio Frequency Radiation Exposure Limits (FCC Rules 47CFR1.1310)
TABLE 1. Limits for Maximum Permissible Exposure (MPE)
Frequency range
(MHz)
0.3-3.0 614 1.63 *(100) 6
3.0-30 1842/f 4.89/f
30-300 61.4 0.163 1.0 6
300-1500 — — f/300 6
1500-100,000 — — 5 6
0.3-1.34 614 1.63 *(100) 30
1.34-30 824/f 2.19/f
30-300 27.5 0.073 .2 30
300-1500 — — f/1500 30
1500-100,000 — — 1.0 30
Electric fieldstrength (V/m)
(A) Limits for Occupational/Controlled Exposures
(B) Limits for General Population/Uncontrolled Exposure
Magnetic fieldstrength (A/m)
Power density
(mW/cm 2)
2
)
*(900/f
2
)
*(180/f
Averaging time
(minutes)
6
30
f = frequency in MHz
* = Plane-wave equivalent power density
NOTE 1 TO TABLE 1: Occupational/controlled limits apply in situations in which persons are exposed as a
consequence of their employment provided those persons are fully aware of the potential for exposure and can
exercise control over their exposure.
Limits for occupational/controlled exposure also apply in situations when an individual is transient through a
location where occupational/controlled limits apply provided he or she is made aware of the potential for
exposure.
NOTE 2 TO TABLE 1: General population/uncontrolled exposures apply in situations in which the general
public may be exposed, or in which persons that are exposed as a consequence of their employment may not
be fully aware of the potential for exposure or can not exercise control over their exposure.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential or commercial installation. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in a
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particular installation. If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
WARNING: Changes or modifications to this equipment not expressively approved by NextNet Wireless
could void the user's authority to operate this product.
TABLE 2. Technical Information
Frequency band 2400-248 3 MHz TX/RX
Transmitting power Up to 0.5 watts
Number of channels 13
Frequency stability ±1.0 ppm
Channel bandwidth 6 MHz
Operating voltage 120 VAC nominal
Modulation Orthogonal Frequency Division Multiplex
Transmission Time Division Duplex/Time Division Multiplex
THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL
ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND
RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE
PRESENTED WITHOUT WARRENTY OF ANY KIND. USERS MUST TAKE FULL
RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCT.
NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND
SOFTWARE ARE PROVIDED "AS IS" WITH ALL FAULTS. NEXTNET WIRELESS DISCLAIMS ALL
WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR
ARISING FOM A COUSRE OF DEALING, USAGE, OR TRADE PRACTICE.
IN NO EVENT SHALL NEXTNET WIRELESS OR ITS SUPPLIERS BE LIABLE FOR ANY
INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCLUDING, WITHOUT
LIMITATION, LOST PROFITS OR LOSS OF DAMAGE TO DATA ARISING OUT OF THE USE OR
INABILITY TO USE THIS MANUAL, EVEN IF NEXTNET WIRELESS HAS BEEN ADVISED OF
THE POSSIBILITY OF SUCH DAMAGES.
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C
ONTENTS
Welcome ..............................................................................................1
LPB product overview .........................................................................1
Before you begin ..................................................................................1
Additional material required for installation .....................................................1
Before you begin ...................................................................................................2
Installation overview ........................................................................... 2
Cabling overview ................................................................................ 3
Attaching the LPB to a tower or pole ................................................. 4
Installing the LPB inside the mounting bracket ............................... 5
Setting the LPB inside the mounting bracket ...................................................5
Connecting the cable harness to the LPB .......................................... 7
Connecting the GPS unit to the base station ..................................... 8
GPS equipment mounting tips ...........................................................................8
Connecting the GPS unit to the LPB and daisychaining other LPBs
in cell .......................................................................................................................9
GPS connectors .....................................................................................................9
Powering the LPB .............................................................................10
Grounding the LPB ........................................................................... 11
Connecting to the backbone network ............................................... 11
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vi Installing the lower power base station
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