Blog Archives

Nokia ‘Dynanet’ PDH Telecoms Spares

Continued Supply of Spare Parts – Surplus and Refurbished Items

@YellowsBestLtd satisfies customer product sourcing requirements for current and ‘legacy’ equipment technologies.

Despite the recent ‘rampdown’ announcement by DNWP for the ‘Dynanet’ range, we should be able to continue to supply refurbished and surplus equipment for as long as required, but the likely effect of the discontinuation of production will be to squeeze the availability of remaining stocks, with a consequential impact on pricing.

Hence, it is recommended that if there is anything that might be needed, it would be best to consider purchasing it in good time to ensure availability of items and best prices.  

Here is a list of the main items immediately available from current stocks, 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 NumberDescription
24204TPSO H/W Module
CC 24002DB2 Branching Unit, B2 2×2 Mb/s 75 ohm
CC 24011DB2 2 Mb/s Switching Unit, X2 75 ohm
CC 24101DN2 Interface Unit (IU2) 2×2 Mb/s 75 ohm
CC 24111DN2 Control Unit (CU) 75 ohm
CF 24186DN2 19″ Subrack
CF 24186.09DN2 Subrack 19″, grey-L91 EMC
CG 24170DN2 Bus Power Unit (BPU)
CG 24171Extended DN2 Bus Power Unit (EBPU)
CU 24013Data Interface Unit (DIU) 2M, nx64k: G.703/704, 75 ohm
T30506.0917-slot DYNANET Subrack
T30851.02Subrack Power Adapter (SPA)
T37870.01NDM ACM2 19in 17-slot subrack
T37871.01NDM DN2 19″ 17-Slot Subrack
T37882.01NDM DC Unit (NDUe)
T37882.02NDM DC Unit (NDUe)
T37885.01NDM Ring Generator
Ring Generator – T37885.01
Part NumberDescription
T37889.01NDM Backup Unit (NBU)
NDM Backup Unit – T37889.01
Part NumberDescription
T65520.01ACL2 RM DC Power Gen
T65580.01ACL2i PF GEN Line Terminal Card
ACL2i PF GEN – T65580
Part NumberDescription
TA 21513Optical Line Terminal Repeater 2-8 M, 1300 nm LED MM/SM
TA 21516Optical Line Terminal Repeater 2-8 M, 1300 nm LASER SM
TC 21101DM34 Mux Card
TC 21301DM8 Multiplex Equipment, 75 ohm
TC 21705Supervisory Substation
TC 21710.01TMS Adapter
TG 21261Ring Generator 25HZ 15W
TU 21122.5Data Interface Unit (DIU) 48..64k V.11 10ch
TU 21124Data Interface Unit (DIU) NX64k V.11/V.35/X.21 2CH
TU 21124.05Data Interface Unit (DIU)
TU 21125Data Interface Unit (DIU) 48..64k with sync, X.21
DIU X.21 – TU 21125
Part NumberDescription
TU 21205Channel Unit SUB/SUB
TU 21206Channel Unit SUB/SUB
Channel Unit Subscriber / Subscriber – TU 21206
Part NumberDescription
TU 21215Channel Unit SUB/EXCH
TU 21216Channel Unit SUB/EXCH
Channel Unit Subscriber / Exchange – TU 21216
Part NumberDescription
TU 21234.20Channel Unit E&M/VF-P, 10 CH, 20 E&M CH
TU 21236.10Channel Unit (CU) 8ch E&M/uP: 2xe&m/vf
TU 21255.01Channel Switch, 4 PORT
TV 21640.08Power Interface Adapter DC
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PC Troubleshooting Project

Stop Code: PROCESS1 INITIALIZATION FAILED

As a result of a PC replacement and upgrade project for Action for Asperger’s, we were presented with a seemingly serviceable Dell Optiplex 755 machine but suffering from a critical failure on power-up, meaning that the computer was unable to boot into windows, preventing use and severely limiting the diagnostics and configuration options.

PC restart

The first step following a reboot was an automatic ‘startup repair’, however, this didn’t result in a fix:

Startup Repair

Rebooting again and selecting F2 during the initial boot-up screen:

Boot Up

enabled a look at the system information, which indicated that the PC hardware was fine.

System info
Processor info
Memory info

As an extra measure, the internals of the computer were briefly examined, ‘reseating’ components including the video board, memory chips and hard disk and then the system test run to verify all was well.

Internal
Test

It was concluded therefore that the PC hardware was not the cause of the difficulties, and that the Windows installation was severely compromised. 

From the bootup, troubleshooting was selected

Choose an option

From the ‘advanced options’, the Command Prompt was accessed.

Advanced options

Using these commands:

DISKPART

SEL DISK 0

LIST VOL

It was possible to view and confirm the drives and their assigned letters.

Diskpart

Extra information was provided using this command:

wmic logicaldisk list brief

Progress was further hampered by the internal DVD/CD drive not being recognised on boot-up, in its place an external DVD drive was connected.

Rebooting and pressing F12 on power up enabled the adjustment of the Boot priority, selecting the DVD drive first.

A copy of the Boot Repair Tool by yannubuntu was next downloaded and a boot-repair-disk created

This was run from boot and gave encouraging results:

Boot Repair Disk

Alas, these steps hadn’t cured the problems, now a further critical error message was displayed:

Recovery

Consequently, using the Microsoft USB/DVD Download Tool, a Windows 10 install disk was created (confusingly the site specifies Windows 7, but it works fine for Windows 10)

This was booted and the appropriate selections made for a fresh installation of Windows 10:

Windows Setup
Windows Install now
Windows type of installation
Windows operating system selection
Activate Windows
Applicable notices and licence terms
Partition choice

At this point, it was found necessary to delete the old windows partition, extend a different partition and create a new partition in order to be able to commence the windows installation.

Partition selection

It did however then allow the installation of Windows onto the other partition, meaning that two bootable volumes were created. Might be useful for future upgrades or troubleshooting.

Choose OS

Just the straightforward matter left of completing the user configuration of the operating system ready for use. 

Choose region

All done, pleasing to conclude that the critical issues with this PC could be resolved through software corrections alone! 

@YellowsBestLtd provides professional Management Services for Business Development activities and Enterprise Support of Infrastructure. We source Solutions for Sustainable Systems maintenance, equipment Technologies and telecoms and other Products to enhance operations.

We’re always keen provide whatever is needed, so please let us know anything you require.

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Reverse Logistics and Value Recovery

With the New Year upon us, it’s a good time to take stock and prepare for this year’s activites and operational maintenance requirements. Its at times like these that decisions are made to move forward with projects to implement replacement systems, and/or ‘clear out’ unwanted infrastructure parts. One resolution we can all embrace is to ensure that a responsible Reverse Logistics process is followed.

Furthermore, it’s not always the case than there has to be a significant cost to disposal; unwanted infrastructure items in many cases can result in a generation of funds to Customers, either through resale of working spare parts or by recycling of components. This ‘Value Recovery’ can help to pay for replacement systems, as well as disposing of unwanted parts with the least environmental impact.

YellowsBest helps Customers perform their Reverse Logistics whilst achieving ‘Value Recovery’ by taking delivery of systems and parts, cataloguing the items, then providing a managed approach to the resale of spares, maximising the revenue arising. During this no-cost process, whilst the assets have been removed from the Customers’ premises saving storage space, they remain the Customers’ property and can be called back should unexpected spares requirements occur. Anything not saleable is then broken down for recycling, with useful materials extracted which can generate additional funds, and unwanted items disposed of in accordance with WEEE regulations.

We look forward to hearing from you; please get in touch to see how YellowsBest can assist with Reverse Logistics and maximise ‘Value Recovery’ for your organisation.

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