summary 1 what decisions are we seeking from you? 2 why ... · omniswitch os6850-24 telecoms switch...

UMSUG MAY/06

Alcatel Lucent Cabinets v.1.018 May 2010 of 1 © ELEXON Limited 2010

Meeting name UMSUG

Date of meeting 25 May 2010

Paper title Alcatel Lucent Cabinets

Purpose of paper For Decision

Summary

Alcatel Lucent would like to apply for Charge Codes for their telecommunication cabinets. However, there are a number of issues relating to the specified testing requirements and coding approach. John Ryves of Alcatel Lucent will present to the UMSUG on the operation of cabinets and answer any issues that the UMSUG have raised.

1 What Decisions are we seeking from you?

1.1 The UMSUG is invited to:

• Consider the equipment, issues and questions raised by Alcatel Lucent; and • Recommend to SVG as to an appropriate approach for the treatment of these

telecommunications cabinets under the BSC.

2 Why are we asking this?

2.1 There are a number of issues relating to the testing of the Alcatel Lucent cabinets including the use of Direct Current (DC) within the cabinets. Alcatel Lucent is also proposing an approach for to calculation the power used by this equipment for consideration by the UMSUG.

2.2 The UMSUG are requested to consider these issues and agree an approach for their treatment under the BSC.

3 More detail and justification for the recommendations

3.1 More information can be found in:

• MAY_06_Attachment_1_JDL01-0003 UMSUG Presentation 97-2003.ppt • MAY_06_Attachment_2_JDL01-0001 NRTS Cabinet Power Consumption.doc

4 More information

4.1 Kevin Spencer wrote this paper. Kevin can be contacted for more information on 020 7380 4115 or at [email protected]

4.2 Further written information on Unmetered Supplies is on the ELEXON website at http://www.elexon.co.uk/participating/unmeteredSupplies.aspx.

National Roads Telecommunications Service

Unmetered Supplies to Roadside Cabinets

19/05/2010 1JDL01-0003 NRTS Unmetered Supplies

Example Transmission Cabinet


Services

Services carried include:

• Emergency Roadside Telephones;

• Traffic Flow Rate Detectors;

• Information Displays;

• Matrix Signs;

• Traffic Cameras.


Equipment types

Typical equipment installed include:

• Broadband and video modems/routers;

• Alarm collection equipment (SCADA);

• Telecom switching equipment;

• 230V AC to 48V DC rectification.


Equipment List

Equipment Model Type Power

AMG3783D-1-DR-SF Single channel video multiplexer 5W

ASMi-31 modem 2-wire IDSL Modem 5W

ASMi-52 modem 2/4-wire SHDSL Modem 7W

ASMi-52L modem 2/4-wire SHDSL Modem 8W

CellStack Solo Single channel video encoder 15W

Eltek 48V Rectifier & Controller AC/DC Converter Total + 25%

OmniSwitch OS6850-24 Telecoms switch 86W

OmniSwitch OS6855-14 Telecoms switch 77W

SAFT 48V Rectifier & Controller AC/DC Converter Total + 25%

Telindus 1423 modem SHDSL Router 15W

Texcel VE5000 SCADA Alarm unit 55W

19/05/2010 JDL01-0003 NRTS Unmetered Supplies 5

Equipment Images


Texcel VE 5000 Alarm Unit

Alcatel-Lucent Telecom switches

Eltek and SAFT Rectifiers

Modems and routers from AMG, Telindus and RAD

Connectivity

• The rectifier converts incoming 230V AC to 48V DC

• The modems, routers, encoders, alarm unit and telecom switch are all connected to rectifier for power;

• The telecom equipment is connected together on to the communications network;

• Each cabinet can have a slightly different mix or quantity of equipment within it;o Types of service (CCTV cameras, matrix signs etc.);

o Number of cameras and signs in area of cabinet.


IATM-g Cabinet


Reason for Charge Code request

• Transmission stations only have NRTS equipment so all will be metered;

• Active Traffic Management (ATM) cabinets & 600 cabinets include equipment from NRTS and from other HA schemes;

• All equipment that is installed in cabinets where the HA is the supply landlord has been identified;

• If Charge Codes allocated, correct billing can be generated based upon each individual installation.


Methodology

Procedure to accurately predict and report power consumption:

• The UMSUG allocate new charge codes and watt ratings to Alcatel-Lucent;

• The HA's TPMS team add new Category/Type/Variants linked to the charge codes in TPMS (HA's Comms inventory database);

• As soon as practicable, following installation of the new equipment, NRTS update their inventory;

• NRTS upload into TPMS, their inventory of assets where the HA are designated as the "supply landlord";

• The TPMS database copies the NRTS "owned" assets onto a new sheet.

• The EPS team download the Comms inventory from TPMS;

• The EPS team carry out an EAC calculation for the NRTS assets on a new sheet on the HA's Comms Inventory Spreadsheet;

• The EAC for the NRTS assets is added to the existing HA Comms EAC and submitted to the DNO's at the next Comms inventory update.


Document Number Version Version Date Ref / Project No: Page.

JDL01-0001 3.0 17/05/2010 NRTS - UMS 1 of 8

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NRTS Roadside Cabinet

Power Consumption

UNCONTROLLED DOCUMENT WHEN PRINTED Printed versions of this document may not be at the latest revision level and users are advised to check with the

master copy on the Documentation Management System before use. Remember – please avoid printing this document where possible to avoid wasting paper, if printed copy is

required please print double sided and ensure it is recycled after use. Document based on Alcatel-Lucent UK&I standard document template no: 8BH 05000 0003 UFZZA v9.0

Document Author: John D Ryves Position: Consultant Document Approver: Geraldine Pagan Position: Project Manager


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Contents

1 SCOPE ........................................................................................... 3

2 RELATED LINKS ................................................................................. 3

3 DESCRIPTION ................................................................................... 3

3.1 INTRODUCTION ................................................................................ 3 3.2 CONTROL OF THE NETWORK ................................................................... 4 3.3 TRANSMISSION CABINET CONTENTS ............................................................ 4 3.4 HOW THE EQUIPMENT IS POWERED ............................................................ 5

4 UNMETERED SUPPLIES ......................................................................... 6

4.1 POWER CONSUMPTION MEASUREMENTS ........................................................ 6 4.2 UNMETERED SUPPLY CALCULATION ............................................................ 6 4.3 IATM-G CABINET ............................................................................. 7

5 SUMMARY ....................................................................................... 8

6 DOCUMENT HISTORY .......................................................................... 8


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1 SCOPE

This document outlines the content of active roadside cabinets installed and operating throughout a number of High Speed Roads in the Traffic England zone, of the Highways Agency’s responsibility and managed by GeneSYS Communications Ltd.

2 RELATED LINKS

http://www.nrtsco.com/website/home.do

http://www.rad.com

http://www.amgsystems.com

http://www.alcatel-lucent.com

http://www.harmerandsimmons.com

http://www.texceltechnology.com

http://www.eltekvalere.com

http://www.telindus.co.uk

3 DESCRIPTION

3.1 INTRODUCTION

The National Roads Telecommunications Services (NRTS) provides services across the Highways Agency’s roadside telecommunications network. The network connects roadside devices to a number of regional control centres. These devices include:

Emergency Roadside Telephones;

Traffic flow-rate detectors;

Information displays & matrix signs;

Traffic cameras.

Each device is cabled physically to a nearby telecommunications node or transmission station (TS), where the electronic signal is digitally multiplexed on to an optical fibre or high speed digital cable connection for transmission around the system to the appropriate control centre. All cables are buried underground, normally within a purple tube or cable duct, which can often be seen on motorway roadwork sites.

Most of the transmission stations deployed in the NRTS system are brick buildings, located every 10 to 15 miles or so, where signals are received and boosted to the next node. Some of these nodes are self-contained roadside

http://www.nrtsco.com/website/home.do

http://www.rad.com/

http://www.amgsystems.com/

http://www.alcatel-lucent.com/

http://www.harmerandsimmons.com/

http://www.texceltechnology.com/

http://www.eltekvalere.com/

http://www.telindus.co.uk/


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cabinets containing some electronic equipment, installed on shelves and in racks. The electronic equipment is a series of separate units, plugged together as ‘black boxes’ to code and decode the signals coming from or going to the roadside devices and to clean-up and amplify data passing through.

Figure 1: NRTS Block Diagram

3.2 CONTROL OF THE NETWORK

The whole of the NRTS is controlled from a series of regional control centres, which themselves are linked to a central hub in the West Midlands. The system is operated and monitored using bespoke computer software applications running on large capacity servers. Within the central hub there is a Network Operations Centre (NOC), which has access to a number of powerful server based applications, including asset management, i.e. the ability to interrogate the network to find out exactly what is installed at each transmission station or node. The NOC can remotely operate the telecommunications equipment, matrix signs, traffic cameras, collect data, monitor fault & security alarms and a number of other operational activities.

3.3 TRANSMISSION CABINET CONTENTS

The actual equipment in each cabinet will depend upon the type and number of roadside services connected to it, and although there is a generic list, each cabinet can have an individual configuration. These cabinets are known as Transmission Cabinets (TC), T-cabs or Integrated Active Traffic Management cabinets (IATMg). IATMg cabinets are used where schemes exists for the controlled use of the hard shoulder.


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Typical equipment includes video modems, not dissimilar to home broadband routers, remote alarm units to monitor equipment and report faults to the NOC (like domestic burglar alarms), and telecommunications multiplexers to connect everything together and drive the data around the network. Telecom multiplexers are specialist small rack-mounted data transmission computers. All equipment is of a constant and predictable electrical load, consume low energy levels and can be considered similar to home broadband routers, alarms or PCs.

All telecommunications equipment selected for deployment on the NRTS network has been designed by recognised development and test houses; is available to purchase internationally and has been approved by the Highways Agency in Alcatel-Lucent’s reference network.

At Section 2 of this document, a series of WebLinks have been identified leading to the designers and suppliers of all equipment deployed in NRTS roadside cabinets.

3.4 HOW THE EQUIPMENT IS POWERED

It is a convention throughout the telecom industry that equipment is capable of being supplied by a safe DC voltage (normally 48V). This also allows the use of battery backup systems and Uninterruptible Power Supplies (UPS), for continuation of service in case of AC power failure (mains and/or generator).

The very nature of considering battery backup means that the selection and use of low power consumption equipment has obvious advantages.

The for IATM-g cabinets, the only piece of telecommunications equipment connected to the single phase AC supply is the AC to DC rectifier. This rectifier supplies all active telecommunications equipment in the cabinet.

This is a switched-mode power supply which converts the incoming AC supply into a stable 48V DC output. Switched-mode power supplies have a high efficiency rating of around 85 to 91%. This means that when the unit supplies the connected equipment, approximately 10% to 16% of the total power consumed, is within the rectifier itself. The rectifiers contain electronic circuitry to provide a stable DC output (within an AC input tolerance) and to compensate for either capacitive or inductive loads to ensure that the Power Factor value remains resistive, i.e. within 0.01 of Unity (Power Factor of 0.99 to 1.0).


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4 UNMETERED SUPPLIES

The majority of equipment is powered by a metered connection to the electrical mains supply. However, some items are located within shared ownership cabinets and may be unmetered. The equipment concerned is located in either Active Traffic Management cabinets or roadside ‘600-cabs’.

4.1 POWER CONSUMPTION MEASUREMENTS

Alcatel-Lucent has established power consumption figures for all items of equipment within the network, submitted checklists and manufacturer’s data to Elexon, however further evidence is required by the UMSUG committee. So, physical test result documentation is being sought (as opposed to technical handbooks and declared data specification sheets), along with further copies of ISO9001 certification for each design house.

4.2 UNMETERED SUPPLY CALCULATION

In order to give an accurate estimate of electrical power consumed by an individual transmission node, the method proposed is to add the absolute values for all individual items within any node, then add 25% to the cumulative total (for worse-case rectifier inefficiency). Diagrams explaining the ‘building-block’ approach have been included.

There are 11 different active equipment types in the network, from 7 designers, so by applying for a Charge Code for each item, the total figure for any Transmission Cabinet, anywhere in the country can be quickly and simply identified.

Referring to Figure 2 for typical populated IATMg cabinets:


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4.3 IATM-G CABINET

Figure 2: Example IATM-g Cabinet

Table 2: Power Consumption of Example IATM-g

Equipment Power Consumed Total

VE5000 SCADA 14W 14W

AMG Video Mux 5W 5W

OmniSwitch 6850-24 86W 86W

1423 SHDSL Router 15W 15W

MiniPack Rectifier & Controller

25% of above sub-total 34W

Grand Total 150W


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5 SUMMARY

In summary, the methodology proposed is:

The UMSUG allocate new charge codes and watt ratings to Alcatel-Lucent;

The HA's TPMS team add new Category/Type/Variants linked to the charge codes in TPMS (HA's Comms inventory database);

As soon as practicable, following installation of the new equipment, NRTS update their inventory;

NRTS upload into TPMS, their inventory of assets where the HA are designated as the "supply landlord";

The TPMS database copies the NRTS "owned" assets onto a new sheet.

The EPS team download the Comms inventory from TPMS;

The EPS team carry out an EAC calculation for the NRTS assets on a new sheet on the HA's Comms Inventory Spreadsheet;

The EAC for the NRTS assets is added to the existing HA Comms EAC and submitted to the DNO's at the next Comms inventory update.

6 DOCUMENT HISTORY

Effective Date

Edition number

Author Reason Description of Change Affected Section

12/04/2010 1.0 J.D.Ryves First Issue

13/05/2010 2.0 J.D.Ryves Changes to metering.

Reduce equipment list and change consumption values where relevant

3, 4

17/05/2010 3.0 J.D.Ryves Clarify methodology after review

Add methodology bullets

5

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