‘Legacy’ Infrastructure Ongoing Maintenance 

Continuing in Keeping Customers Operational

Over the last nine years, @YellowsBestLtd has sought out new, surplus and refurbished products and spare parts to assist with the aim of supporting Customers to maintain rather than replace their infrastructure networks, and as we enter our landmark tenth year, we continue to do so.

The alternative of wholesale replacements requires prohibitive investment costs and long project timescales to implement. And it can be the case that suggested replacements cannot provide equivalent operational lifetimes which therefore become obsolete faster than existing deployments.

Given the investment that has been made over many years, coupled with the fact may operational requirements have not changed, it makes sense to keep systems in place. By suppling spares, offering repair services and technical assistance, we are able to support these aims.  

Systems Replacement and ‘Value Recovery’

Eventually, it does become necessary or desirable to undertake network refreshes. Often, we can help evaluate, source and implement suitable systems.

As discussed recently at the Engineering Design Show, we are able to utilise the capabilities of a network of local manufacturers to replicate and if necessary reverse-engineer components and products to meet exacting performance requirements.  

When replacing existing networks, we are able to offer to Remove, Resell and/or Recycle existing equipment, generating revenue from the ‘Value Recovery’, and importantly ensure that items are disposed of in the most ethical and environmentally respectful way.

Equipment recently supplied and/or currently stocked

Certain product families continue to prove their excellent availability and reliability, and we are fortunate to continue to be able to provide stock of many of these items, either in new, surplus or refurbished condition.

Examples of  such products follow; should there be anything specific you require, please do not hesitate to get in touch; we look forward to hearing from you!

Nokia  ‘Dynanet’ PDH – Definitive Spares List

Keymile UMUX –  Multiservice Access Solutions

Marconi XMP1 –  telecommunications

Nokia, Marconi and Ericsson SDH –  Synfonet, SMA and OMS 

Sagem –  ADR SDH family

RadiFlow –  Cybersecurity Solutions for the Industrial IoT

TETRA –  Equipment and Terminals for PMR Networks

Bosch –  Professional CCTV Cameras

‘Dynanet’ PDH Telecom Spares

Continuing in Operation, Still Available for Supply

The ‘Dynanet’ product family is a range of PDH telecommunications products first launched by Nokia over 20 years ago. This equipment has proven to be incredibly reliable and dependable, extensively deployed by Operators, Utilities and Transport companies to provide resilient and highly available transmission networks.   

A continuing challenge for public and private network owners is the ongoing maintenance of infrastructure systems to support their business needs. In many cases, it makes sense to continue to operate legacy systems which are still fulfilling unchanged requirements, rather than contemplate costly and time-consuming change-outs and replacements. 

Keeping Customers Operational

@YellowsBestLtd seeks out new products and legacy equipment spares to assist with these aims. Recent enquiries have been fulfilled supplying refurbished and surplus stocks of equipment cards, as well as built-to-order cables and connectors to suit exact requirements.

There follows a few examples of items we have recently supplied. Also, our more extensive Definitive ‘Dynanet’ spares list here provides details of many items still available from surplus and refurbished stock. We would welcome any enquiries for the supply of similar or alternative parts, or support services to provide hardware repairs. Please get in touch; we look forward to hearing from you!

Example items, recently supplied

Multiplexers
Part NumberProduct CodeDescription
CC 24002DB2 B2DB2 2×2 Mb/s Branching Unit (B2), 75ohm
CC 24002 – DB2 B2

Multiplexers
Part NumberProduct CodeDescription
CC 24011DB2 X2DB2 2 Mb/s Switching Unit (X2), 75ohm
CC 24011 – DB2 X2

Multiplexers
Part NumberProduct CodeDescription
TC21101DM2DM2 Multiplexing Unit, 75 ohm

Mechanics
Part NumberProduct CodeDescription
T37870.01SUBRACKNDM 19in 17-slot Subrack
T37870.01 – Subrack

Power Supplies
Part NumberProduct CodeDescription
T37882.02NDUeNDM DC Unit (NDUe)
T37882.02 0 – NDUe

Voice Interfaces
Part NumberProduct CodeDescription
TU21236.10VF E&MCU 8ch E&M/uP: 1xUKe&m/VF
TU 21236.10 – VF E&M

Optical Line
Part NumberProduct CodeDescription
TA 21513DF 2-8Term. Repeater 2-8 M, 1300 nm LED MM/SM
TA 21513 – DF 2-8

Copper Line
Part NumberProduct CodeDescription
T65570.01ACL2iACL2i DC GEN
T65570.01 – ACL2i

Management
Part NumberProduct CodeDescription
T31094.01DCNDCN Adapter C4.0
T31094.01 – DCN

TETRA Equipment and Terminals for PMR Networks

Public Safety, Utility and Transport organisations over many years have deployed Private Mobile Radio (PMR) infrastructure equipment with high availability and reliability to provide to provide dedicated, secure communications networks.

Modern implementations of PMR utilise the digital TETRA standard, which provides interoperability between systems and terminals from a range of manufacturers.

@YellowsBestLtd our mission is  “Keeping Customers Operational, by continuing to provided spares solutions, hardware repairs and support services to ensure continued long-term operations and maintenance.  

Examples of the products we have recently been requested to provide spares solutions and repairs services include Motorola Desk Radio Terminals: 

Terminal Products
Part NumberProduct CodeDescription
M47PCC6T25_NMT912MTM700 380-430 MHz DESK Terminal
M80PCC6TZ5_NMT912MMTM800 380-430 MHz DESK Terminal
FIRMWARECLEAR / TEA1 / TEA2Choice for all radios
OPTIONEXP DASHExpand Control Head, 5m cable

If you have similar or other Radio solutions requirements and legacy maintenance services needs, please get in touch to discuss how we may be of assistance.

Cable products

Cable solutions to fulfil bespoke requirements

Customers with deployed infrastructure networks require not only spares, repairs and support, but also cable products to ensure continued long-term operations and maintenance.  

@YellowsBestLtd is pleased to continue to provide bespoke solutions to meet exact requirements. These items are newly manufactured, specifically made to order.

Examples include cables for Nokia ‘Dynanet’ VF E&M interfaces and Bus Wire:

Cable Products
Part NumberProduct CodeDescription
006-22021236.10 Cable21236.10 3mtr 20pr foil/braid LSZH Cable P1 & P2

 

Part NumberProduct CodeDescription
580-512Bus Wire30AWG Solid core unshielded silver cable 8 pair – 50m

“Keeping Customers Operational”

If you have similar or other new cabling requirements, requirements for legacy infrastructure spares, repairs and maintenance support, please get in touch to discuss how we may be of assistance.

Celebrating 8 years of supporting Customers and supplying Services and Solutions

@YellowsBestLtd has been assisting with “Keeping Customers Operational” for eight years now. Over the time we have been in business, we have supported our Customers with Services and Solutions.

We provide a range of Business Development professional Services, such as Consultancy and Value Added Resale.

We help Customers to keep their infrastructure networks operational by undertaking a range of Enterprise Support activities, including O&M, training and Reverse logistics.

We ensure Sustainable Systems by sourcing Solutions to assist customers maintain the operational status of their infrastructure.

We support deployed systems by providing hardware repair and software corrections and suppling spares or functional replacements.

We offer various new and ‘legacy’ equipment Technologies and a wide range of infrastructure, telecoms and other Products, seeking out new, surplus and refurbished equipment spares equipment cards, as well as supplying built-to-order cables and connectors to suit exact requirements.

The Market Sectors of the diverse organisations we assist include Utilities, Transport and Private and Public Operators who operate and maintain their own network infrastructure, providing them with Solutions to do more whilst reaping cost-benefits.

We hope to continue to be of assistance for many further years. Please contact us to let us know how we can assist you to keep your systems operational . We look forward to hearing from you.

Professional CCTV Cameras

Many business operations depend on the security delivered by professional standard CCTV cameras, offering reliability, availability and a wide range of advanced features for mission-critical surveillance applications. One manufacturer that provides an extensive range of such products is Bosch; one of their latest models we feature here.

Bosch MIC IP Starlight 7100i Outdoor PTZ

This example of a robust PTZ IP camera is suitable for deployment in extreme outdoor locations that require reliable 24-hour security monitoring. It features a range of advanced imaging technologies as well as Bosch’s Intelligent Video Analytics.

Featuring a 1/2″ 2MP CMOS sensor and a 6.6-198mm motorized zoom lens, the camera captures video at resolutions up to 1920 x 1080 at 60 fps in a 58.3 to 2.1° field of view. The camera delivers color video in lighting conditions as low as 0.0047 lux and uses an automatic IR cut filter to switch from color to B&W for day/night functionality.

An integrated high-speed pan/tilt system with an anti-backlash drivetrain provides 360° continuous panning and 290° tilting at up to 120° and 90° per second, respectively. Housed in an IP68- and IK10-rated enclosure and equipped with a window defroster, the camera is suitable for use in vandal-prone outdoor locations. Audio input and output ports allow for two-way talk while an SD card slot enables onboard storage of footage. ONVIF compliance ensures compatibility with a wide range of surveillance devices.

Solutions for New and Legacy Product Sources and Supply

@YellowsBestLtd seeks out new products and legacy equipment spares to assist with our aim of “Keeping Customers Operational“. Recent enquiries have included not only CCTV cameras, but also the supplying refurbished and surplus stocks of equipment cards, as well as built-to-order cables and connectors to suit exact requirements. Please get in touch to discuss any solutions or services requirements that you have; we look forward to hearing from you!

GAIA – Earth Artwork by Luke Jerram

Fortunate to see the display of Gaia, the touring artwork by UK artist, Luke Jerram, hosted this month at the Beverley Minster.

Measuring seven metres in diameter and created from detailed NASA imagery of the Earth’s surface the artwork provides the opportunity to see our planet, floating in three dimensions. In Greek Mythology Gaia is the personification of the Earth.

Common features of the experience are a feeling of awe for the planet, a profound understanding of the interconnection of all life, and a renewed sense of responsibility for taking care of the environment.

@YellowsBestLtd helps Customers with their operational needs, and one aspect is to #Reduce the demand for avoidable whole-scale replacements through a combination of supply for #Reuse of refurbished spares and repair of system elements. When removal and disposal of no-longer serviceable infrastructure parts is necessary, we can also assist with the resale and #Recycle for ‘value recovery’ of valuable materials. In this small way, we aim to make a difference in the impact we have on our planet through sustainable solutions.

Please get in touch should you wish to discuss your operational requirements and see how @YellowsBestLtd can be of assistance.

New parts for Legacy systems

Keeping Customers Operational

A continuing challenge for public and private network owners is the ongoing maintenance of infrastructure systems to support their business needs. In many cases, it makes sense to continue to operate legacy systems which are still fulfilling unchanged requirements, rather than contemplate costly and time-consuming change-outs and replacements.

@YellowsBestLtd seeks out new products and legacy equipment spares to assist with these aims. Recent enquiries have been fulfilled supplying refurbished and surplus stocks of equipment cards, as well as built-to-order cables and connectors to suit exact requirements.

There follows a few examples of items we have recently supplied. We would welcome any enquiries for the supply of similar or alternative parts, or support services to provide hardware repairs. Please get in touch; we look forward to hearing from you!

Example items, recently supplied

Connectors
Part NumberProduct CodeDescription
D-21470EuroEuro Connector 3×7
Connector 3×7 – D-21470
Connector 3×7 – D-21470
Cables
Part NumberProduct CodeDescription
102-722-1Coax-SMB 1mBT3002 Coax Cable BNC Plug to SMB Right Angle, 1m
102-722-3Coax-SMB 3mBT3002 Coax Cable BNC Plug to SMB Right Angle, 3m
102-722-5Coax-SMB 5mBT3002 Coax Cable BNC Plug to SMB Right Angle, 5m

Coax-SMB-5m

Equipment
Part NumberProduct CodeDescription
T37882.02NDUeNDM DC Unit
TA 21513DF 2-8Term. Repeater 2-8 M, 1300nm LED MM/SM
TU 21236.10VF E&MCU 8ch E&M/uP: 1xUKe&m/VF
TU 21216SUB/EXCHChannel Unit SUB/EXCH
SUB/EXCH – TU 21216

More equipment spares are listed here

Motherboard Repairs

Repairs to elements such as modules and cards of infrastructure hardware is one way we achieve our mission of “Keeping Customers Operational”. A good and recent example is Motherboards for display systems. These are from established, long-standing and therefore proven and fit-for-purpose systems. It therefore makes sense to maintain and extend the life of these parts.

Typical with such ‘legacy’ elements is that the level of complexity of the items is not excessive, meaning that repairs using discreet components is perfectly feasible, unlike more modern integrated systems which use specialised parts that cannot be freely or cheaply obtained or impossible to disassemble resulting in them being classed as ‘BER’ (Beyond Economic Repair). This is ultimately costly and disruptive, requiring wholesale replacements.

@Yellowsbestltd would be keen to hear from you should you have any repairs requirements. We would welcome receiving any defective items you have in order to perform a no-cost assessment to establish the feasibility and likely cost of restoration. Please get in touch to let us know how we can help.

Cabling Solutions

Bespoke cable products to suit individual needs

@YellowsBestLtd seeks out new products and legacy equipment spares, ensuring the continued long-term maintenance of infrastructure system.

Equally as important can be the necessary cables to connect data and voice circuits. Often, these are items that can be damaged and disposed of, since repair is difficult or impossible. And original supply is no longer available. Fortunately, we are able to get these bespoke items newly manufactured, specifically made to order.

Here are a few recent examples:

Cable Products
Part NumberProduct CodeDescription
102-722-1Coax-SMB 1mBT3002 Coax Cable BNC Plug to SMB Right Angle, 1m
Coax-SMB-1m
Part NumberProduct CodeDescription
102-722-3Coax-SMB 3mBT3002 Coax Cable BNC Plug to SMB Right Angle, 3m
Coax-SMB-3m
Part NumberProduct CodeDescription
102-722-5Coax-SMB 5mBT3002 Coax Cable BNC Plug to SMB Right Angle, 5m
Coax-SMB-5m

“Keeping Customers Operational”

If you have similar or other new cabling requirements and legacy maintenance needs, please get in touch to discuss how we may be of assistance.