Surplus and Refurbished Items for continued operational service
Many Customers have ‘legacy’ telecommunications networks which are continuing to provide good operational service. Particularly where functional requirements have not changed, it makes sense to avoid or delay costly and time-consuming change-out replacement projects, by obtaining spare parts.
@YellowsBestLtd satisfies world-wide customer product sourcing requirements for current and ‘legacy’ equipment technologies from a wide range of Original Equipment Manufacturers (O.E.M.s).
Stocklist of Nokia ‘Dynanet’ Spare Parts – Available for immediate supply
For the ‘Dynanet’ family of PDH Transmission telecoms products, which has provided 20+ years of service, we still have a few spare units are in stock and available for immediate supply. These items have been mostly retrieved from operational service during Customers’ decommissioning projects, and have been refurbished, tested and are warranted for working operation.
Given that production of the majority of the product range was ceased in 2019 or before, it is recommended to consider purchasing spare parts whilst there is still availability.
Here is a list of the main items currently in stock, though there may be a few additional parts that can be supplied. Hence, please check and if you do have any requirements, please let us know. We look forward to hearing from you.
Part Number
Description
CC 24002
DB2 2×2 Mb/s Branching Unit (B2), 75ohm
CC 24011
DB2 2 Mb/s Switching Unit (X2), 75ohm
CC 24101
DN2 2×2 Mb/s Interface Unit (IU2), 75ohm
CC 24111
DN2 Control Unit (CU), 75 ohm
CF 24186
DN2 19in Subrack
CF 24186.09
DN2 19in Subrack, grey-L91 EMC
CG 24170
DN2 Bus Power Unit (BPU)
CG 24171
DN2 Extended Bus Power Unit (EBPU)
CU 24013
Data Interface Unit (DIU) 2M, nx64k: G.703/704, 75ohm
D-21470
Euro Connector, 3×7
D-24204
Optical Teleprotection Interface Unit, C37.94
T30506.09
17-slot DYNANET Subrack
T30851.02
Subrack Power Adapter (SPA)
T31094.01
DCN Adapter C4.0
DCN Adapter C4.0 – T31094.01
Part Number
Description
T37870.01
NDM 19in 17-slot Subrack
T37871.01
NDM DN2 19in 17-Slot Subrack
T37882.01
NDM DC Unit (NDU)
T37882.02
NDM DC Unit (NDUe)
T37885.01
NDM Ring Generator
Ring Generator – T37885.01
Part Number
Description
T37885.02
NDM Ring Generator + DC/DC converter
Ring Generator – T37885.02
Part Number
Description
T37889.01
NDM Backup Unit (NBU)
NDM Backup Unit – T37889.01
Part Number
Description
T65520.01
ACL2 RM DC Power Gen
T65580.01
ACL2i PF GEN Line Terminal Card
ACL2i PF GEN – T65580
Part Number
Description
TA 21513
Optical Line Terminal Repeater (DF2-8), 1300 nm LED MM/SM
TA 21516
Optical Line Terminal Repeater (DF2-8), 1300 nm LASER SM
TA 21518
Optical Line Terminal Repeater (DF2-8), 1300 nm LASER LP
DF2-8 – TA 21518
Part Number
Description
TC 21101
DM2 Multiplexing Unit, 75ohm
TC 21301
DM8 Multiplex Equipment, 75ohm
TC 21705
Supervisory Substation
TC 21710.01
TMS Adapter
TG 21261
Ring Generator 25HZ 15W
TU 21122.5
Data Interface Unit (DIU) 48..64k, V.11, 10ch
TU 21124
Data Interface Unit (DIU) nx64k, V.11/V.35/X.21, 2ch
TU 21124.05
Data Interface Unit (DIU) nx64k, V.11/V.35/X.21, sync
The ‘Dynanet’ family of PDH Transmission telecoms products were first introduced by Nokia over 20 years ago, and were continued in recent years by DNWP. These have well served Public Operator and Private Network Customers across the Telecoms, Utilities, Transport and Public Safety markets with high availability mission critical infrastructure, and indeed some networks are continuing to provide good operational service.
Production of the majority of the product range was ceased in 2019. However, some products remain available to order, notably the DCN Adapter C4.0, related management software products and other items such as the TPS64, NDUE and Euro / SMB connectors.
Nokia DCN Adapter
Continued Supply of Spare Parts – Surplus and Refurbished Items
@YellowsBestLtd satisfies world-wide customer product sourcing requirements for current and ‘legacy’ equipment technologies from a wide range of Original Equipment Manufacturers (O.E.M.s).
For the ‘Dynanet’ range, we should be able to continue to supply refurbished and surplus equipment for as long as required, but the effect of the discontinuation of production is squeezing the availability of remaining stocks, with a consequential impact on pricing.
Hence, for those customers continuing to maintain their networks, it is recommended to consider purchasing spare parts whilst there is still availability. Please get in touch to advise what you need!
From time-to-time, hardware elements within infrastructure systems fail, and repair services are required for a diverse range of parts procured over a considerable period of time, from a multitude of Original Equipment Manufacturers (O.E.M.s), some of which no longer exist.
YellowsBest is able to provide a comprehensive repairs management service for both new and old equipment items, all to a standard equivalent to the original working condition and with warranted operation.
Component Level Repairs Example: SES Displayboards
An example of the type of equipment that we are often asked to assist with is the MS1 Matrix LED ‘displayboards’ produced by SES and used for professional signage applications.
LED ‘displayboards’
Typical issues to deal with are Faulty LEDs, damaged capacitors and broken sockets, which have occurred in operational use over time. Adding to this are problems stemming from heat gun damage and resoldering caused by previous ‘user fixes’. But these issues are addressable and the boards restored to full working condition.
Other types of equipment for repair services include Telecommunications products, power supplies and CCTV cameras.
Typical Items for Repair Services
Reduce – Reuse – Recycle
@YellowsBestLtd helps Customers with their operational needs, and one aspect is to #Reduce the demand for avoidable whole-scale replacements through a combination of #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.
Most customers have implemented their private network infrastructure systems over a number of years, and for many their operational requirements have not changed. Consequently, it makes more sense both financially and environmentally to maintain these systems rather than embark on complete change-outs. We can assist by supplying critical and hard-to-find spare parts and hardware repair services, even when the systems have been declared ‘obsolete’ (i.e. no longer in production) by the O.E.M. We look forward to hearing from you.
Given the current unprecedented situation restricting normal business operations, resulting in revised working arrangements including home working, consideration should be made of the preparations and processes organisations need to take.
Consequently, we recommend joining the following Webinar by Vysiion and Radiflow, Thursday 2nd April 2020:
If you miss this event then please get in touch so we can discuss your interest and requirements.
@yellowsbestltd our mission is to assist with ‘Keeping Customers Operational’. We’re keen to provide #solutions and #services to help your business survive and maintain your systems – let us know if we can help!
It certainly is a troubling time with the rapid spread of the Coronavirus sweeping the world.
It’s no exaggeration that for most people, nothing quite like it has been experienced in living memory. There’s a lot of confusing information around and the advice seems to keep changing on a daily basis. This graphic found posted on twitter by @TheLoff provides a sensible guide to being careful …
Businesses in general are also experiencing an extremely challenging situation, testing the most robust of #BusinessContinuity plans. Again from twitter, this summary posted by the @Cabq Economic Development Department, provides an overview of the tips and resources they have put together for businesses and organisations navigating through the Coronavirus …
@yellowsbestltd our mission is to assist with ‘Keeping Customers Operational’. We’re keen to continue to provide #solutions and #services – let us know if we can help!
When phones got small (before they went big again)
In technology terms it seems a lifetime ago, now that large and ever-increasingly powerful ‘smartphones’ are commonplace, but it wasn’t so long since the trend was for mobiles to get smaller and smaller …
The evolutionary beginnings are clear, mobile phones started off as ‘bricks’: heavy, not very portable and limited in use. So the target became to make them ever smaller whilst cramming in as much functionality as possible.
The pinnacle of this development was just about reached with the Nokia 6230, a ‘feature phone’ which boasted a clock, calendar, calculator, music player, radio, photo and video cameras and a few basic games, even a limited internet browser, as well as texts and phone calls of course! A colour screen too, admittedly small (2.5cm square) and low-resolution by today’s standards, but with a battery that would last days not hours providing long talk and standby time. All squeezed into 10x4x2cm package; quite remarkable back in 2003.
Nokia 6230
This was about as small as phones got, and the small-size-format was so successful that it carried on like this for a few years, as illustrated by low-cost ‘entry’ devices such as the 2610 from 2006. Almost exactly the same size and weight, benefiting from improved screen and build but missing a camera – then still considered a ‘premium feature’, now so common place it’s hard to imagine any phone without one. Almost all of today’s phones are much wider, taller but thinner – how times have changed!
These mobile phones show off the relatively recent past of technology development, built to survive the harsh environment of the home of the Finnish manufacturer. So now, 15 or so years later – these ‘legacy’ models are still in working order, having out-lasted the company that made them!
Much has since changed in the world of mobiles, such that they’re not even used much as just ‘phones’, and Nokia’s phone business itself came and went, though now being revived by HMD Global. Despite promoting smart phones such as the ‘flagaship’ Nokia 9, it’s also interesting to see the ‘re-introduction’ of some ‘classic’ small-size-format phones, such as the 3310, harking back to those early beginnings.
@YellowsBestLtd we’re here to help #business customers maintain and keep operational “legacy” products and #enterprise equipment, as well as newer #systems, so let us know if we can assist by sourcing and supplying spares, repair and support services to ensure #technologies continue to serve and perform. Please get in touch to discuss your Management Services and Solutions requirements; we look forward to hearing from you.
@YellowsBestLtd we would like to thank our Customers for your enquiries and orders throughout this year, as well as our Suppliers for your support.
We’re pleased to have been of assistance providing services and solutions. Now into our fourth year of trading, we appreciate your continued interest and support, and look forward to continuing our business relationship in the New Year ahead.
A portfolio of comprehensive yet simple security solutions to protect critical assets is produced by RadiFlow.
Supervisory Control and Data Acquisition (SCADA) systems, used for controlling and monitoring remote operations in critical infrastructures such as power utilities, oil & gas, water and more, often extend across multiple remote sites, allowing automation devices to be controlled from the control centre.
Cyber threats to SCADA systems have in recent years been on the rise. Terrorists and criminals have set their sights on critical infrastructures that utilise SCADA systems due to these systems’ inherent vulnerabilities and the huge potential to disrupt civilian life and may cause high financial losses to the utilities.
Radiflow’s security tool-set validates the behaviour of both M2M applications and H2M (Human to Machine) sessions in distributed operational networks.
Radiflow’s security solutions are available both as in-line gateways for remote sites and as a non-intrusive IDS (Intrusion Detection System) that can be deployed per site or centrally.
A Complete Security Solution for SCADA installations
Visibility – Radiflow’s iSID Intrusion Detection System (IDS) automatically learns the network topology (links, protocol and devices) using passive scanning. Any new activity is highlighted on the GUI.
Protection – Radiflow’s IDS and Secure Gateways protect the SCADA networks from a variety of cyber threats such as network scanning, infected RTU and technician activity.
Compliance – Radiflow’s security products help make networks compliant with major security standards: NERC CIP version 5, NIST SP 800- 82 V2, ISA 99 and IEC 62443.
About Radiflow – founded in 2009 as part of the RAD group, a family of ICT vendors with over $1Bn in annual revenues. Radiflow’s security solutions, introduced in late 2011, have been successfully deployed by major utilities world-wide, and validated by leading security research labs. Radiflow’s security solutions are sold both as components within global automation vendors’ integrated end-to-end solutions, and as standalone security solutions by local channel partners.
@YellowsBestLtd seeks Solutions and provides Services to support Customer requirements to maintain and keep operational critical infrastructure networks. Please get in touch to discuss how we can be of assistance.
For many years Electricity, Water, Oil and Gas Utilities as well as Transport companies have required bespoke, robust, dedicated network critical infrastructure solutions with high availability and reliability. Historically, these tended to use bespoke well-proven technologies aimed at providing key functionality and high availability, with redundancy, protection and long service life favoured over ‘cutting-edge’ performance. These aspects are still important, but the drive towards modern, efficient and interconnected operations, has resulted in the adoption of mainstream Internet functionality and movement from TDM to IP technologies.
In the past, the very nature of the deployed bespoke systems has meant that security issues didn’t arise, since wider threats didn’t apply. A case of being safe by being unknown. But with the adoption of Internet technologies, along with the growth and increasing sophistication of cyber-threats, Utilities and other private network companies are needing to apply Information Technology (IT) security solutions tailored to their Operational Technology (OT) systems.
@YellowsBestLtd seeks Solutions and provides Services to support Customer requirements to maintain and keep operational critical infrastructure networks. Please get in touch to discuss how we can be of assistance.
