This system is designed to be operated indoors as a fixed system device and must be
located either on or near the ceiling away from the user. It must be mounted in a manner
to ensure that all users and bystanders and users are kept a minimum of 60mm away
from antennas at all times.
Do not touch or move the antenna(s) while the unit is transmitting or receiving.
Do not hold any component containing a radio such that the antenna is very close to or
touching any exposed parts of the body, especially the face or eyes while transmitting.
In most parts of the world, regulatory approval(s) are needed before the nanoBTS is
operated.
Do not connect any device other than the nanoBTS to any RJ45 socket that has been
enabled for nanoBTS connection (i.e. 48Vdc operation).
The nanoBTS is intended for dry indoor applications only. If evidence of condensation is
present do not apply power to the nanoBTS.
The nanoBTS must only be powered using a PSU supplied by ip.access.
PSUs supplied by ip.access must not be used for powering any other equipment.
The nanoBTS is a picocellular basestation operating in one of the GSM frequency bands and
complies with all the relevant ETSI / FCC specifications. A nanoBTS basestation is mounted on a
wall or ceiling, taking its power and traffic from a single 10/100 switched Ethernet connection.
The range of the nanoBTS exceeds half a kilometre in an uncluttered environment and inside
buildings can be expected to support users within a radius of up to 50m or more, depending on
the building construction materials.
The nanoBTS is physically linked to the BSC over an IP network and uses standard GSM
protocols to connect to the existing Public Land Mobile Network
The diagram below shows the system architecture. Calls within the installation are passed over
the IP network and are handed over to the PLMN if the mobile leaves the installation coverage
area and is out of range of the ip.access basestations.
The nanoBTS may be mounted on walls or ceilings, in convenient locations chosen at the system
planning stage, to provide adequate coverage in a building. Power to the nanoBTS is via the RJ45
socket enabled for 48Vdc. The nanoBTS has a LED indicator used to convey its status.
This indicator can be disabled after commissioning if required using the nanoBTS installer
software. For wall mounted installations and installations on sloping surfaces it is preferred that
the cable access is from the bottom as this prevents the ingress of dust and condensation, but
where circumstances dictate the nanoBTS may be mounted to allow cables access from the top
of the unit. When mounted on a ceiling the plastic clip-on cover
ventilation and cooling.
Prior to installation and following a technical site survey, ensure that the following items are
available.
1. Details of placement of PSUs (at central site or at nanoBTS).
2. The following system information is required for each nanoBTS:
•
The ARFCN (Absolute Radio Frequency Channel Number) to be allocated to that
cell.
•
A specific IP address may be allocated to each nanoBTS location or a pool of IP
addresses may be provided and the installer allocates the IP address for each
nanoBTS.
•
Requirements for and details of any external antenna and mounting and locations.
•
BTS Id for each nanoBTS.
•
IP address subnet mask and default router IP address for the each nanoBTS.
3. For the installation site, the following information is required.
• IP address subnet mask and default router IP address for the installation PC.
•
Printout of the site configuration plan produced as a result of the survey
•
A floor plan showing the mounting location of each nanoBTS, together with
location name and btsid.
Installing the nanoBTS
Parts required for each nanoBTS:
•
Wall fixings: These are not provided as part of the nanoBTS but should be
suitable for the wall material and weight of the nanoBTS (2.7kg). Suggested
materials are 4 x 30mm no.10 woodscrews or M5 bolts and wall plugs (if
required).
•
PSU.
• NanoBTS complete with mounting bracket.
•
RJ45-RJ45 connecting leads
Tools required:
Installation:
•
Drill and masonry or wood bit.
•
Mounting bracket removal tool for removal of the bracket from the nanoBTS.
• Spanner or screwdriver suitable for any fixings used for the mounting bracket.
Power for the nanoBTS may be at either the RJ45 outlet or at the output of the last Ethernet
switch/hub/router etc. See Figure 3 below
nanoBTS
nanoBTS
PSU
φφφφ
~
(48v)
RJ45
PSU
θθθθ
RJ45
~
Ethernet Switch
θθθθ
PSU located at the switch
φφφφ
PSU located at nanoBTS
Figure 3 nanoBTS PSU location
IF THE NETWORK HAS AN EXISTING DHCP SERVER DO NOT CONNECT THE
nanoBTS TO THE SWITCH AT THIS TIME.
Installing the PSU at the Ethernet switch.
If the PSU is located at the patch panel /output port of the Ethernet switch, it is important
that the PSU is connected exactly as illustrated below (failure to do so will cause damage to
the switch). Ensure that the PSU is placed in a location that is ventilated and that the
connection leads provide no safety hazard.
Ensure that the PSU is placed in a location that is ventilated and that the connection leads
provide no safety hazard.
110-230Vac
~
Connection to nanoBTS
48Vdc
PSU
!
48Vdc
Mounting the nanoBTS.
The location of each nanoBTS is shown on the installation floor plan produced at the
network planning stage. The network wiring must be complete before the nanoBTS can
be tested. The nanoBTS should be placed on a wall at or above head height or on a
ceiling.
Note: If the nanoBTS is to be used with an external antenna the nanoBTS should be
modified as shown in appendix 1
a) Fixing to a wall
1) Remove the nanoBTS from the bracket by sliding the removal tool over the central fin
between the bracket and the body of the unit to disengage the locking spring, slide
bracket to separate it from the main body of the unit. The tool may be inserted from
the top or bottom of the nanoBTS