Genuine Siemens EWSD STM-1 optical interface board, type STM1:O(P) (S30813-Q299-X-ZVLL), for EWSD digital switching exchange racks. Tech-Star (UK-based, shipped worldwide) – enquire for stock.
The Siemens S30813-Q299-X-ZVLL is a genuine STM-1 optical interface board from the Siemens EWSD (Elektronisches Waehlsystem Digital) digital switching platform. It carries the internal Siemens designation STM1:O(P) (STM1:O), indicating an STM-1 (155 Mbit/s) optical transmission interface card, and belongs to the S30813-Q series of EWSD subrack cards used for SDH/optical interconnection between exchange racks.
EWSD is Siemens’ large-scale digital circuit-switching system for fixed-line telephone exchanges. It was deployed extensively worldwide from the 1980s through the 2000s and still supports many legacy and developing-market networks today. This board is supplied as a genuine pull and is intended as a like-for-like spare for engineers maintaining or expanding an existing EWSD installation.
Tech-Star holds a wide range of legacy Siemens EWSD boards and ships from the UK worldwide. Get in touch to check this part against your exchange configuration.
Worldwide supply. We export new and refurbished telecoms and networking equipment internationally. International buyers welcome, request a delivered quote in your currency. Supply subject to export checks.
Frequently asked questions
Is the Siemens S30813-Q299-X-ZVLL refurbished or new?
Tech-Star supplies both new and refurbished Siemens S30813-Q299-X-ZVLL. Refurbished items are tested and graded against manufacturer specifications; the condition is confirmed at quote.
What warranty is included with the Siemens S30813-Q299-X-ZVLL?
Refurbished Siemens S30813-Q299-X-ZVLL comes with a 90-day parts and labour warranty as standard. Extended warranty options are available on request.
How do I get a price for the Siemens S30813-Q299-X-ZVLL?
Pricing reflects current stock and lead time, so we quote per enquiry. Submit the part number through the contact form for a quote, typically within one business hour.
Can the Siemens S30813-Q299-X-ZVLL be returned?
Returns are accepted within 14 days of delivery in line with our return policy. A restocking fee may apply for opened items.
How quickly can the Siemens S30813-Q299-X-ZVLL be delivered?
Lead time depends on current stock. UK-based items typically ship the next business day; sourced items vary. We confirm lead time at quote.