Calix E5-121 — End-of-Life & EOSL Dates
Calix E5-121 — end-of-sale and end-of-support dates by part number, from the Calix Customer Advisory Bulletin cited below.
Every tracked Calix E5-121 SKU group is past Calix end of service life (last group Sep 2020). Units in production should be treated as unsupported. For past-EOSL units, weigh third-party maintenance, spares, replacement, or a documented run-to-failure.
End of sale
Jun 2015
Last date of support
Sep 2020
Part numbers
2
71
months past last support
Why this score
- Past end of service life — 71 months ago
- Vendor-published date, source-linked
- Category: optical access platform
Support-lifecycle timing and source confidence only. Higher means more runway. It is not a risk, safety or compliance rating. How it is calculated
Part numbers in this family
All 2 share the dates above. Find your exact part to confirm.
| Part number | Description | End of sale | Last support | Status |
|---|---|---|---|---|
| 100-01230 | E5-121 24-Port VDSL2 Combo, DC PWR E5-121 VDSL2 Combo 24-Port Unit, DC Power | Jun 2015 | Sep 2020 | Past support |
| 100-03750 | E5-48C 48 Port VDSL2 | Jun 2015 | Sep 2020 | Past support |
Options from here
The Calix E5-121 is past Calix end of service life. These are the paths teams take from here:
Keep it in production past the OEM cutoff with an independent maintainer.
Buy spares now, while units still circulate on the secondary market.
It is unsupported today. Set a migration timeline and budget.
Low-criticality role: document the risk, harden backups, retire on your terms.
Independent and informational. EOSL.ai sells no hardware and no maintenance, and lists no paid placements. Third-party maintenance keeps unsupported gear in production past the OEM cutoff; whether it fits depends on the role the asset plays.
Calix E5-121 — questions
Is the Calix E5-121 end of life?
Yes. Every tracked E5-121 SKU group is past its last date of support.
What is the last date of support for the E5-121?
Sep 2020, per the Calix end-of-sale bulletin.
Where do these E5-121 dates come from?
Every end-of-sale and end-of-service-life date on this page links to the official Calix end-of-sale bulletin it was taken from.
On the same timetable
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