vbts standalone with broadband

2010‐09‐03 Vihaan Networks LTD.

VBTS Installation Guide�

© VNL® 2009‐2010, All rights reserved

Precautions

Following All Safety Precautions Before any operation, read the instructions and precautions in this document carefully to minimize the possibility of accidents. The Danger, Caution, and Note items in the documents do not cover all the safety precautions that must be followed. They merely provide the most basic generic safety precautions that are applicable for this equipment. When operating VNL® products and equipment, you must comply with all safety precautions, while also follow additional special safety instructions related to corresponding equipment provided by VNL®. The safety precautions in the document are related to only VNL® products. VNL® is not liable for any consequence results from the violation of universal regulations for safety operations and safety codes on design, production, and equipment use

Complying with Local Safety Regulations When operating the device, comply with the local safety regulations. The safety precautions provided in the documents are supplementary. You must comply with the local safety regulations.

Qualified Personnel Only The personnel in charge of installation and maintenance must be trained and master the correct operating methods and safety precautions before beginning work.

Symbols

Safety of Personnel ipment is important at all times, regardless if the system is in

VBTS or the VNL® CCU 100.

dition.

al connection of the device before operation and ensure that the device is

DANGER Indicates a hazard with a high level of risk, which if not avoided, will result in death or serious injury.

WARNING Indicates a hazard with a medium or low level of risk, which if not avoided, could result in minor or moderate injury. CAUTION Indicates a potentially hazardous situation, which if not avoided, could result in equipment

damage, data loss, performance degradation, or unexpected results. TIP Indicates a tip that may help you solve a problem or save times. NOTE Provides additional information to emphasize or supplement important points of the main text.

Grounding of the site equoperation or not. Never perform any site work during a thunderstorm. There are no user serviceable parts inside the VNL® Any attempt to access any parts inside may result in serious injury or even death. Defective or malfunctioning units should be replaced and returned in unopened conThe VBTS site is equipped with batteries of very high peak current capability and high energy. The VNL® battery stencil shows the proper polarity and is intended to help with safe assembly. Extreme caution must be taken until the battery terminals are secured. Severe burns or blindness can result during short circuit of battery cables.

Device Safety Check the electricreliably grounded. When working on batteries, take measures to prevent short circuits in the batteries. When the equipment is unpacked, it must be powered on in 24 hours. The maximum duration of the power-off state of the equipment is 24 hours during maintenance.


Features with Key Components

specially designed for demanding outdoor applications in rural areas. It is fed by 24V DC and comes with integrated microwave link and antenna.

Internet wireless access point available Optional wireless access point for internet access can be fitted and fed via 24V PoE from the VBTS.

Simple setup The entire installation involves erecting the supporting structure for the solar panels and battery compartment, erecting the pole with BTS and integrated microwave link can be done in two hours.

VNL® OMC supervision and alarm handling support included All relevant real time site parameters, including battery state of charge (SOC) have remote supervision support, allowing informed decisions to be made with respect to service or repairs.

Solar power system with hybrid AC power support included The main consideration is keeping solar panels clean and ensuring proper seasonal alignment on at least a monthly basis. In very clean environments with limited inaccessibility, like mountainous areas at considerable altitude, a check every three months would be adequate, unless the OMC reports any alarm that calls for manual intervention.

Solar power optimized zero maintenance batteries The battery technology chosen is tubular gel VRLA in discrete 2V cell configurations of 12 cells per system. For safety reasons, the battery compartment is kept closed with a remotely monitored top cover sensor. There is no topping-up or other service required for the duration of the VNL® warranty time period. In the event that some form of physical or chemical damage has occurred due to abnormal operating conditions, only the original cell type may be replaced. Due to lead content, controlled recycling is mandatory to prevent harm to humans, domesticated or wild animals or plants.

Always keep in mind that lead in any shape and form must be handled responsibly by personnel with adequate training, for additional information, turn to VNL® after sales support.

Energy efficient BTS The mechanically very robust and reliable low power consumption WorldGSM™ VBTS,


Important Tools for Installation

Tool Tool Name Uses Description Requirement

Flat file, 8" Install Solar stand Smoothen edges in

solar frame

Rare

Round file, 8" Install Solar stand Expand hole in Solar Rare

frame

insulated)

Pliers Combination General Solar frame, Tower Must

Pliers (Stanley or erection, Antenna

Taparia 1621‐

7,178mm length,

mounting

Adjustable

spanner, 12"

General Solar frame, Antenna

mounting

Desirab

length, 1.5" span

le

Adjustable General Solar frame, Antenna

spanner,8" length, mounting

Desirable

3/4" span

Wire cutter,16 sq‐

mm

Install Solar stand Power systems,

Grounding wire

cutting\stripping

Must

Scissors General Normal usage, cutting

packing material etc

Desirable



RJ11/RJ45 Crimper

MP

790163‐1 Pro or

Make Ethernet Make and replace

Must

Hand tool (A

equivalent)

cable damaged RJ45 cables

onsite

Magnetic compass Leveling Set direction of Solar Must

frame, Align T1

antenna

or

Install Solar stand Marking, drilling for

non standard frames

frame elements

Rare Centre Punch (16‐

228 Stanley

equivalent) and member solar

Drill machine(Hilti

or Bosch), Bits for

VBTS installation Fastening VBTS guy

wire on rooftops

Must

metal and

concrete

Hacksaw with

Blade

Install Solar stand Cutting solar frame

members

Rare

GI rope cutter, to

cut up to 9mm

rope

allation VBTS inst Guy wire cutting Must



d ble

Mallet (Soft face

hammer, 57‐540

Stanley or

equivalent)

Install Solar stan Solar frame hole

adjustments

Desira

multi‐purpose

nose‐pliers

Install Solar stand Desirable Battery thimble

Cable Tie Cutter Antenna mounting Solar frame, Antenna Must

mounting,

replacements

Ring spanner set, General Solar frame, Tower

erection, Antenna

mounting

Must

Up to 20*22.

Double Ended C‐

20*22 and 32*36

General Solar frame, Tower

erection, Antenna

mounting

Must

Spanner set,6*7 to



),8mm

m

thick tip

nd

BTS

Screw Driver, Flat

Head,(Stanley or

Taparia‐829

Breadth,1.2m

General General use, Grou

connection to

Desirable

Screw Driver,

Flat\Philips dual

Head,(Stanley or

Taparia‐903)

General General use Desirable

Digital Clamp General

Meter (Multi 14S

Sigma or

equivalent)

Checking battery, Desirable

other voltages and

currents

Cable Cutter for

cables up to 25

mm diameter

Cabling for CCU r Rare Cut power cables fo

CCU

Antenna mounting RF Desirable Andrew Cutter

1/2"

Antenna mounting,

cables

Knife General Solar frame, Tower

erection, Antenna

mounting

Desirable



lar stand

mounting

Lugs crimper up to

25 mm

Install So Solar frame, Tower

erection, Antenna

Must

Magnetic Bit se

with screw driver

t

Tower

erection, Antenna

mounting

General Solar frame, Desirable

Tool Box General To carry multiple

tools

Must

Rope, pulley VBTS installation Synthetic, 12 mm, 20

Desirable

mtr rope and 1 Tonne

pulley

Climbers on pole VBTS installation Once erected, climb

then hoist

replacement

Must

on pole to hoist

pulley,


VBTS Configurations and Pre-deployment Checklist

The VBTS caters to the nano cell in the hierarchical architecture. It is designed to be installed on the rooftop of village houses erected on a pole o is r frastabilized by thre es. The VBTS site can be of the fol s:

• Omni cell with 1 TRX • Omni cell with 2 TRX • Tri-sectored site with 1-1-1 • Tri-sectored site with 2-2-2 • Bi-sectored site with 2-2

without with three sections e guy wir

any additional foundatiof 3 m each. The pole

n or civil work. The VBTS is attached to the sola

lowing configurationme and

Checks Status

Check the lev and availability of

the place‐holder/hooks to install the guy wires

eling of the roof

Check that the hooks/place‐holders on the

rooftop are that after th es

are installed, they are 120° apart from each

other

so placed e guy wir

Check that line of sight is possible to the Tier‐2

patch antenna mounted on the nearest RBTS

site

Check loading VNL® system

designed with an assumption of strength of the

typical roof top as 150 kg/sq m to 300 kg/sq m

capabilities. is

Check the wooden crate or system surface for

any damage e sy

any damage is seen, contact the transport

company

before moving th stem. In case,

VBTS Solar Stand and Pole


The VBTS solar stand is housing the power system and must be assembled first for stability and electrical safety reasons. The purpose of this mechanical structure is to support the solapanels, the battery compartment as well as the pole with all BTS and WiFi access point equipment including antennas and lightning arrestor, so proper assembly and alignm

r

ent is

ry Enclosure Installation Workflow” to ensure the basic

ucture before even considering any further steps in the

• Follow e “Site Cabling Installation Workflow” in this ent for all battery and CCU related electrical connections, but wait with the solar panel placement to avoid damag n nd nobody is s

• T rangment first as shown in the fi final position. Place guy wires at an angle of 120°, confirm startup as given in the section “VBTS Microwave Link and Access Point Initiation”.

very important.

• Refer to the section on “Battestability of the solar stand strinstallation effort.

th docum

e to the glass surfaces until all pole adjustmetepping on the supporting structures. he VBTS pole should be assembled in fulcrum arrst figure from left. Pull the pole structure in to the

ts are final a


VBTS Solar Stands with Latitude Tilt

solar

ing antennas and lightning arrestor, so proper assembly and alignment is very important.

The VBTS solar stand is housing the power system and must be assembled first for stability and electrical safety reasons. The purpose of this mechanical structure is to support the panels, the battery compartment as well as the pole with all BTS and WiFi access point equipment includ

Months Formula Used Delhi Abidjan Durban

November to

January

Latitude +

23.4°

52 29 7

February to

April

Latitude 29 5 30

May to July Latitude ‐

23.4°

5 ‐18 (north) 53

August to

October

Latitude 29 5 30

The 1 TRX VBTS is equipped with two solar panels. The latitude adjustment should be followed for each geographic location as per the guidelines provided in this section.

The 2 TRX VBTS needs 3 solar panels and a larger battery pack, but the power system still fits in the same battery compartment as for the 1 TRX version.


VBTS System Interconnection Information

Botto VBTS w er cabling and Mounting bracket is intended for pole place an be found in the WorldGSM RBTS asse structions. The RJ 45 cable glands are shown

as transparent in this image. The left connector is for the optional

S ess point and the right connector is for CCU supervision and monitoring.

m side ofRJ 45 conn

ith powectors.

ment. Tower mou

mbly in

nt detail c™

VBT acc

CCU 100 cabling from left to right:

ins cable • AC ma• Ethernet connection • VBTS 24V power connection • Battery cable • Solar cables

Please take special note that the CCU may never be opened or serviced in the field. Fixed CCU cabling is tightened with their respective glands directly from factory. Only the battery cable, VBTS load and auxiliary signal connectors should be connected by assembly personnel during site installation.

All cable glands must be properly secured to protect internal electrical connections from damage. Furthermore, the integrity of the weather protection barrier between the cable isolation and the gland itself must be kept intact, otherwise

direct gs.

water and pollutants may gainentry into the connector housin


Site Cabling Installation Workflow

Complete the battery compartment assembly and conclude installation

16 beeps from CCU

Install PGND cable from solar stand to site ground/earth pit

Install ground cable between BTS and mounting pole and then proceed with the complete battery compartment assembly workflow

Confirm that battery interconnections follow the stencil. Connect the battery cable to the plus and minus terminals and finally to the CCU 100 battery port, tighten CCU 100 connector firmly. Safety hazard!

Connect antenna cable(s) to BTS, RJ45 Ethernet connector, BTS ground screw and finally 24V DC connector

Connect all solar panel cabpole and finally connect the 2

ling, erect 4V DC

CU end and tighten firmly cable at the C

Confirm that blue LED in BTS perform backhaul lock routine

is lit and

Mount the CCU 100, connect the CCU green) to the solar all nuts and bolts

nce of washer tivity

100 PGND cable (stand and tighten firmly. Confirm the presefor good electrical conduc

Yes

No


Battery Enclosure Installation Workflow

Confirm that all glands and gaskets are tight and conclude battery compartment installation

Assemble and mount the battery compartment on the solar stand sheet by sheet. Leave one side open

Put the 24V battery bank cell box assemblies inside the battery

compartment

Pair the cell box assemblies as per key guides to make one assembly and tighten the nuts and bolts with a wrench

Mount the stencil on the battery btaking care of

ank polarity and rotation with

the help of the guiding pillars present on the cell boxes

Tighten the copper interconnect bus bars

Continue with site cabling installationworkflow

VBTS Power Reset


Start

Press CCU reset button five tiss CCU reset button five times in rapid succession

mes in rapid succession

Is CCU LED turning red?

Yes

No

After one minute, confirm CCU y

green LED normal operation with stead

After five minutes, confirm BTS normal operation with steady blue

LED


VBTS Microwave Link and Access Point Initiation

Confirm that BTS is operational and microwave link established

Can 16 beeps be heard?

No

Confirm cabling for access point and check SSID for local wireless

network with notebook PC

Start

Wireless network

available?

In special cases, use notebook PC with RS232 adapter to confirm the CCU IP-address provided by OMC

DHCP, otherwise conclude the procedure and report successful

start to customer

No

Yes

Yes


Audio-Visual Indication

CCU 100 LED (inside battery compartment)

Category LED Indication Event

No power from CCU Fixed red light Load Off

Red blinking light Load Off and battery charging

System up but no

charging current

Green blinking light Load on, Battery charging by solar

els pan

Fixed green light Battery fully charged with SOC at

100% , float charging activated

System up and battery

charging current is

present

Orange blinking light SMPS ON and Battery charging by

solar or auxiliary AC power

Fixed orange light Battery discharging

Fault condition Red green

blinki

SMPS overheat/ Load fuse

voltage unusable

alternate

ng

Faults‐

trip/AC

The VBTS site equipment has an integrated audio visual indication to notify the health status of system to installation staff. This section describes the indications in detail.

TIP

Acoustics Indications


CCU 100 Beeper Information

Event Beep Pattern

Bo ‐‐ one cycle ot up indication 1s Beep 1s Silence‐‐‐

Su

OMC 0.2s Beep 0.2s Silence…… 8 cycles

ccessful registration on

Battery Low 0.5s Beep 0.5s Silence 2 cycles , 60s

pause ‐‐‐then repeat all over,

tinuously con

System going to shutdown 0.5s Beep 0.5s Silence ‐‐‐‐‐ beeps this

continuoupattern sly

Load disconnected Silence

continuously

1s Beep 2s ‐‐‐‐ beeps this pattern

Reset Acknowledg

using the reset key press,

when the load is turned off 0.5s Beep 0.5s Silence‐‐‐‐‐‐‐ one cycle

ement

Reset Recovery

the

i.e. when

Load is turned back on

after the desired ti 1s Silenceme. 1s Beep ‐‐‐‐‐ one cycle

When the AC‐DC ch

ON.

0.2s Sile

silence ‐‐‐‐ beeps t

continuously

arging is 0.2s Beep nce 4 cycles , 30s

his pattern

Power Alarm Thresholds


Function Parameters Default Set Values

Load

disconne

levels

Load disconnect 22.2 Volt

ct Load reconnect 24.5 Volt

PWM Cha

Control

Boost Charging rging <28.4V* @ 27C

Trickle Charging Start Voltage >28.4Volt * @27C

Trickle Charging Stop Voltage >28.5 Volt* @27C

Alarm

Indications

Required When SOC < 40% Emergency Charging

Low Voltage Disconne Voltage <= 22.5V ct Warning System

No Solar Module Powe When the current does not go

positive in a 24 Hour period

r

System Over Voltage System voltage >30V

CCU high Temperature CCU warmer than 65 C

Battery Service When the Ah capacity drops

factory new

capacity

below 80% of the

Solar Module Cleaning ent never exceeds

90% of the rated value in a 5 day

period.

When the curr

CCU SMPS failure alarm AC/DC stage not operational

Battery box open alarm Lid sensor closing circuit

AC volt unusable alarm AC voltage outside the range 90‐

270VAC

Troubleshooting


Error symptoms Possible cause of Error Troubleshooting/Explanation

No

connectin

audio indica

g battery

e battery

terminals/stencil

ctions

Ti properly and

then try reconnecting the

battery connector to CCU

tion after Loos

conne

ghten the stencil

cable

CCU LED is RE

is no B

D

TS Power

eries are low Co properly to

solar panels or AC power to

charge the batteries

and there Batt nnect the system

CCU LED is blinking

green‐red

Remove e and

w nd then

press reset button to power

re

fast Short circuit at load

with

colors

alternate terminal

BTS power cabl

ait for some time a

set the BTS

CCU LED is blinking

with green‐red alternate

colors during emergency

charging

is

either too low or too

high

Measure

inlet.

90 to 270Volts

fast AC input voltage the AC voltage at the

It should be in the interval

SMPS temperature is

very high

SM off

the AC input for some time and

let the unit cool down

PS is overheated. Turn

SMPS has failed Replac

the

DG

e the CCU after removing

AC input cable from grid or

BTS is powered

there is no beep. The

CCU is not visible on

OMC

e is

faulty/improper

connectors are

Make

crimpe

Pull cable and wait for

so t

for beep to come.BTS should be

powered

up but The LAN cabl

crimped

sure cable is Ok and

d well from both sides.

out the

me time. Insert again and wai

ON in this case

Local Console (Advanced Installation)


Local Diagnostics There is normally no need to perform in-de

ur

Informa without disturbing the norma of the system. In the upcoming sec he software accessible commands are given to get

ories and Setup ok PC with serial connection to

adapter is recommended. Here are the basic steps tConnect the serial adapter to the CCU RS232 port. Open a telnet program such as tera term or hyper terminal.

bel

Type the command getccuinfo. This command diNumber, HW version, and MAC address.

Additional Commands Software version information getswinfo. The inform

• Active Software Version • Backup Software Version • Communication Protocol Version

pth analysis or low level configinstallation in the field. However, a traineengineer can get this

ations during d

tion from the CCUl functionality tion some of t

the system information.

Needed AccessA small laptop/notebo the CCU is needed. A USB to RS232

o follow:

Follow the port setup per ow.

splays the CCU type, CCU ID, Serial

ation displayed is:


Local Console (Advanced Installation)

• Boot loader Version

s commend is getstatus. This provides real time information for all listed below:

• Battery voltage/system voltage • Battery State of charge(SOC) in % • CCU internal temperature • Load current • Solar charging current • SMPS charging current • SMPS temperature • AC voltage reading

Finally, to reset the CCU, issue the command reset. This command resets the CCU software but leaves the site power DC feed intact.

The power system statuthe system parameters

• CCU software version • Battery current

Post-Installation Site Audit


The following should be performed for all BTS sites:

• Check the termination of the Ethernet cable to the CCU-100 and the combiner. Check the quality of crimping by visual inspection. Ensure that all interconnections batteries, SPV, and CCU-100 are still firm and without corrosion. Confirm that all (green) grounding cabling is intact and bolts tightened firmly.

• Ensure that that there is no damage or gaps in the sheet metal battery enclosure and that no equipment is left inside. Check that the remote alarm connector of the compartment lid is working.

• Check for solar panel damage to the cover glass and also for any small air bubbles trapped between the silicon cells and laminate near the frames, if so, the panel should be replaced.

• Confirm the north-south solar stand axis of alignment by means of a compass and

move and report any such misuse when

eter fine-tuning when all power related checks have been

ormed for VBTS sites in particular:

isting or tilting of the VBTS poles with loose guy wires. You onfirm the incline.

• Confirm that the guy wires are tout and not corroded. • Confirm that the earth pit is damp and that the ground wires are intact.

confirm the seasonal tilt adjustment. • Investigate the presence of any non-standard cabling or lamps, indicative of

unauthorized use of power, promptly reencountered.

• Perform RF paramsuccessfully completed.

The following should be perf

• Carefully look out for twcan use a theodolite to c

Maintenance


Cleaning of Solar Panels

• It is recommended to gently clean the solar panels once in approximately 15 days. Always use water and a soft sponge or cloth for cleaning. A mild, non-abrasive cleaning agent can be used to remove hard residue like bird droppings etc. Never use scouring powder, steel wool, scrapers, blades, or a• ny other sharp

Emom

fully e clouds, hea d fog for continuous 2-3 days can cause battery SOC to fall below

n OM

r generator restThe are needed to perform such an emergency charging:

1 O

2. Pull out AC inlet cable of CCU out of box and connect to standard AC socket.

3

4 C

5 A

6 A

7. After this, remove the AC plug from the generator socket and secure the AC cable.

8. Put the top cover and lock the compartment again.

9. The complete operation’s information/status is seen by OMC remote monitoring.

10. The voltage range must be 90-270VAC to permit the SMPS stage to work as intended.

instruments to clean the glass surface of the solar panels.

ergency Charging The WorldGSM™ power system is designed to have battery autonomy time of 72 hours fr

charged condition to load disconnect during extremely poor weather. Very densvy rains or thick groun

50%. In such events the CCU gives buzzer alarm locally and also generates an alarm oC.

Du ing such circumstances AC power provided a portable diesel or kerosene AC ores SOC to satisfactory levels. following steps

. pen up the battery compartment locks from sides and remove the top cover.

. Turn ON the genset/grid power switch.

. CU gives beep (see buzzer section for pattern) when emergency charging is started.

. lso, LED color shows the emergency charging activation.

. t least 4 hours of charging is recommended continuously.

vbts standalone with broadband

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