Ip.Access nanoBTS User Manual

nanoBTS.doc

1.1 Introduction

1.1.1 Purpose and Scope

This documents the procedure used to install the nanoBTS hardware and physical connections together with applying the base software configuration.

1.1.2 Related Documents

Reference

Number

Document Title Description

1 CENG0133 Customer Safety and Regulatory Information 2 CENG0220 Operations Procedure

1.2 Warnings

This document must be translated into your local language, if English is not commonplace.

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 20cm 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).

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The nanoBTS is intended for dry indoor applications only. If evidence of condensation is present do not apply power to the nanoBTS.

The cabling to the nanoBTS and power supply is to run indoors only.

The nanoBTS must only be powered using a PSU supplied by ip.access; the approved part is APC model PSU109 with UL file number E231617.

PSUs supplied by ip.access must not be used for powering any other equipment.

The external antenna ports are not covered by this products UL approval.

1.3 Regulatory Information

For all regulatory information please see CENG0133 Ref{1}.

1.4 Unpacking

Unpack nanoBTS and check to see that the unit has not been damaged in transit. Any damaged units should be returned to your supplier.

Figure 1 - Unpacking the nanoBTS

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1.5 Fitting the External Antenna Kit (optional)

NOTE: When looking at the nanoBTS with the connections facing down and the LED visible the antenna on the left is the Transmit antenna and the antenna on the right hand side is the Receive antenna.

NOTE: The RF feeder cable must not be bent as this may result in a degraded performance.

Remove the plastic covers by removing the top and bottom plates from both ends of the nanoBTS. Lever gently apart with screwdriver in notch.

Antenna Cover

Top

Antenna Cover

Bottom

Notch to aid removal of

cover

Antenna Cover

Body

Figure 2 - Removal of antenna covers

Remove the antenna cover body, by unscrewing the two Torx T20 screws retaining

Remove Torx Screws

Figure 3 - Removal of antenna cover body

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Fit the replacement antenna cover body ensuring that the feeder cable connector fits into the antenna. Note that one cover only fits the receiver whilst the other fits the transmitter.

Fit the clamp as shown below and second Torx screw, then replace top and bottom covers.

Clamp plate

Figure 4 - Fit clamp plate

Repeat the process for the other end of nanoBTS

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1.6 IP Configuration

• Connect the nanoBTS up as shown in Figure 5 nanoBTS Connections and power on the nanoBTS

Figure 5 - Local BTS Connection

• Start the BTSInstaller application

• If the IP address of you PC is not shown the IP Address window (see Figure 6)

Figure 6 - BTSInstaller Interface

• Click on the “Configure” button and select the network interface, then IP address that is being used to connect to the nanoBTS then click on the “OK” button.

• In the DHCP pane, click on the “Pool“ button and then the “Add” button

• Enter the IP address for the nanoBTS and click on the “OK” button.

• In the DHCP pane, click on the “Stop” and then “Start” button, to make the

DHCP server take the new IP address pool.

• Under the BTS Status pane, click on the “New” button

• From the “BTS tab”, enter the MAC address of the nanoBTS (see label on the

side of the nanoBTS

• From the “DHCP tab”, Enable the “DHCP Configuration” tick box and enter the Subnet Mask and Router address. If no router is used leave the router address as 0.0.0.0

• From the “Unit ID” tab, Enable the “Configure Unit ID” tick box and enter the Site ID. If the nanoBTS is part of a multi-TRX site also enter the TRX ID.

• From the ”NV Attr (1)” tab, enable the “NV Attr Configuration” tick box and select the “Configure Flags” tick box and set “F1”, “F2” and ”F3” to the “ON” state.

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• From the “NV Attr (2)” tab, enable the “Configure Primary OML” tick box and set the “Primary OML IP Address” to the IP address of the BSC.

• From the “NV Attr (2)” tab, enable the “Configure Location” tick box and enter a text string for the nanoBTS location.

• From the “NV Attr (2)” tab, enable the “Configure Unit Name” tick box and enter a text string for the nanoBTS name.

• If new software is required to be downloaded to the nanoBTS, then from the “Download” tab; enable the “Software Download” tick box.

• Click on the “Browse” button and using the standard Windows dialogue box, select the software you wish to download to the nanoBTS and then click on the “OK” button.

• Click on the “OK” button to accept the configuration.

• From the “BTS Database Log” window, click on the “Auto” button.

The BTSInstaller application will now assign an IP address and automatically configure the nanoBTS parameters. Once this process has completed, the four (4) indicators in the “BTS Status” pane will turn green.

Figure 7 - BTS Status

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1.7 Cabling the nanoBTS

Figure 8 - nanoBTS Connections

1.7.1 Ethernet

Each nanoBTS must be connected to an Ethernet switch or hub via either a 109 ip.access single power inserter or 126 ip.access Powered Ethernet Switch. Refer to CENG0033 for details of the power supply connections.

1.7.2 Timing Interface Bus (TIB) – Multi-TRX only

The Timing Interface Bus (TIB) is used to provide clock and signaling between the nanoBTS when operating in a Multi-TRX configuration.

The TIB OUT from the Master TRX must be connected to the TIB IN of the slave TRX. This in turn has its TIB OUT connected to the next TRX in the chain. See Figure 9 - TIB Connections

Figure 9 - TIB Connections

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1.7.3 Earth Strap – Multi-TRX only

When the nanoBTS is operated in a Multi-TRX configuration, each of the nanoBTS must be connected together using the supplied earth kit.

To fit the earth strap, remove the nanoBTS from the mounting plate

Using the screw provided, screw the Earth Strap to the stud on the rear of the nanoBTS, see Figure 10 - Earth Stud.

Earth

Stud

Figure 10 - Earth Stud

Connect the other end of the Earth lead to the next nanoBTS Earth stud in the chain.

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1.8 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 installed and commissioned. The nanoBTS should be placed on a wall at or above head height or on a ceiling.

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

Figure 11 - nanoBTS Bracket Removal

Position the bracket on the wall and mark the position of the four screw holes. The top of the bracket MUST be positioned uppermost. Ensure that the bracket is level and sufficient clearance is maintained to allow the unit to be located on the bracket (at least 80mm from the bracket to the top of wall and 120mm from the side of the bracket to a side wall). See the diagram below, Figure 12 - Fixing the wall bracket.

80mm min

120mm min

Figure 12 - Fixing the wall bracket

Drill the four holes in the positions marked previously and insert wall plugs (if required) and fix the mounting bracket securely to the wall. The bracket is designed to allow the nanoBTS unit to be mounted with the connections at the bottom of the unit. Slide the nanoBTS onto the bracket and ensure that the retaining spring engages into the indent at the rear of the unit.

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2

Locking Spring

1

T

O

P

Figure 13 - Mounting the nanoBTS

When fixing to a ceiling or a sloping wall the same fixing process and clearances should be observed as for fixing to a wall (at least 80mm from the bracket to the top of wall and 120mm from the side of the bracket to a side wall). On a sloping surface the top of the bracket MUST be uppermost. Once the unit has been attached to the bracket the outer cover MUST be removed to expose the cooling vanes, as shown in Figure 14 - Ceiling Mounted nanoBTS

Figure 14 - Ceiling Mounted nanoBTS

1.8.1 Mounting Multi-TRX nanoBTS

When the nanoBTS are to be installed in a Multi-TRX configuration, then each TRX should be installed in a similar orientation but not closer than 30cm to each other.

A further specific constraint is that the TIB cables must be <1.5m and a 1.5mm2 Earth cable must also be connected between each TRX with a length not exceeding that of the TIB cable.

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1.9 Initial Frequency Calibration

NOTE: The nanoBTS must be powered on for a minimum of 24 hours prior to final frequency calibration. It is recommended that during installation an initial, local calibration is made following a powered on time of > 10 minutes followed by a final operational calibration after 24 hours power on time.

NOTE: If the nanoBTS is used in a Multi-TRX configuration, then the TIB OUT must be disconnected from each nanoBTS in the chain prior to calibration and reconnected afterwards.

• Using BTSInstaller, select the nanoBTS that is to be calibrated and then click on the “Listen” button in the “BTS Status” pane.

• Select the frequency band to match that of the nanoBTS to be installed.

• Click on the “Connect” button, this will cause the nanoBTS TRX to power up.

The status LED will flash green when completed.

• Click on the “Channel Usage” tab and then click on the “Start Test” button.

• When completed click on the “BCCH Channel Usage” tab and then click on

the “Start Test” button.

• When completed, click on the “Frequency Synchronisation” tab.

• Select “Configure Test”

• Select the “Freq Sync Options” tab and then click on the “Apply Frequency

Synch Options” and change the Option to “Adjust The Clock To Correct The Reported Errors” then click “OK”

• Click on the “Start Test” button.

Once the test completes then the calibration is completed and the procedure should be repeated for all installed nanoBTS before reconnecting the TIB cables.

Following the 24-hour period, the Frequency Calibration procedure should be performed as per the Operations procedure – Ref {2}

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1.10 LED Status Indicators

The following table shows the meaning of the state LED under normal and fault conditions.

State Pattern When Precedence

LED_SELF_TEST_FAILURE Red

Steady

In boot or application code when a power on self-test fails.

1 (High)

LED_UNSPECIFIED_FAILURE Red

Steady

On s/w fatal errors. 2

LED_NO_ETHERNET Orange

Slow Flash

Ethernet disconnected. 3

LED_FACTORY_RESET Red

Fast Blink

Dongle detected at start up and the factory defaults have been applied.

4

LED_NOT_CONFIGURED Alternating

Red/Green Fast Flash

The unit has not been configured. 5

LED_DOWNLOADING_CODE Orange

Fast Flash

Code download procedure is in progress.

6

LED_ESTABLISHING_XML Orange

Slow Blink

A management link has not yet been established but is needed for the TRX to become operational. Specifically: for a master a Primary OML or Secondary OML is not yet established; for a slave an IML to its master or a Secondary OML is not yet established.

7

LED_SELF_TEST Orange

Steady

From power on until end of backhaul power on self-test

8

LED_NWL_TEST Green

Fast Flash

OML established, NWL test in progress

9

LED_OCXO_CALIBRATION Alternating

Green/Orange Slow Blink

The unit is in the fast calibrating state [SYNC].

10

LED_NOT_TRANSMITTING Green

Slow Flash

The radio carrier is not being transmitted.

11

LED_OPERATIONAL Green

Steady

Default condition if none of the above apply.

12 (Low)

Ip.Access nanoBTS User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual