# OpenScape Business X8 SLMU — 24-Port UP0/E Digital Subscriber Card

URL: https://www.promark.tr/en/products/slmu-x8
Category: Expansion Cards & Modules
Family: [OpenScape Business X8 Cards](https://www.promark.tr/en/products/osbiz-x8-cards)

24 × UP0/E digital subscriber card for the X8 — successor of the discontinued SLMO8N and SLMO24N; the current single choice for digital subscribers on X8. Connects CP TDM (CP205T/CP405T) and OpenStage T phones; with the CMAe subboard it becomes SLMUC for DECT base station (BS5) connectivity. ⚠️ A different part from the identically named OS4000 SLMU.

## Key features

- 24 × UP0/E digital subscriber ports.
- Successor of SLMO8N and SLMO24N (both discontinued).
- Connects CP205T / CP405T and OpenStage 15T/40T/60T.
- With CMAe subboard → SLMUC: BS5 DECT base station connectivity + echo cancellation.
- Plate budgeting: SLMU uses a Front Face Plate.
- ⚠️ Not to be confused with the OS4000 SLMU (S30810-Q2344-X100) — different platform, different part.
- Promark: digital/DECT port planning and installation.

## Specifications

- **Type:** Digital subscriber card
- **Port:** 24 × UP0/E
- **Platform:** OpenScape Business X8
- **Replaces:** SLMO8N, SLMO24N (discontinued)
- **DECT extension:** + CMAe subboard = SLMUC (BS5 connection)
- **Distinction:** OS4000 SLMU (S30810-Q2344-X100) is a DIFFERENT part
- **Mitel PN:** 50009295
- **Unify L No:** L30251-U600-A984

## Use cases

- Connecting the digital phone fleet (CP TDM, OpenStage T) on X8.
- Building Integrated Cordless (DECT) infrastructure with CMAe.

## For a quote and BOM

https://www.promark.tr/en/contact · +90 312 544 09 15 · destek@promark.tr