# OpenScape Business X8 SLMUC — DECT Base Station Card (SLMU + CMAe)

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

Core card of the X8 Integrated Cordless (TDM-based DECT) solution: SLMU + CMAe echo cancellation subboard — successor of the SLCN card. BS5 base stations connect to its UP0/E ports; max 4 SLMUC per system, 128 registered DECT devices and 48 simultaneous calls per card. ⚠️ The OS4000 SLMC is a separate product.

## Key features

- SLMUC = SLMU (24 UP0/E) + CMAe echo cancellation subboard (50009294 / A983).
- Successor of the SLCN card — Service Doc Issue 17 §4.4.28.
- Max 4 SLMUC per system; 128 registered DECT devices and 48 simultaneous DECT calls per card (system max 250 devices / 192 calls).
- CMAe enables more simultaneous calls per BS + echo cancellation; without CMAe max 2 calls per BS.
- Placement rule: no more than 2 SLMUC per PCM segment; leave the adjacent right slot empty for ventilation or use the last slot.
- DECT handsets: SL7, S6, R6, M3 — 1 EIC Code per device (A395).
- Promark: DECT coverage design, BS5/SLMUC distribution and commissioning.

## Specifications

- **Type:** DECT base station line card
- **Composition:** SLMU (A984) + CMAe subboard (50009294 / L30251-U600-A983)
- **Replaces:** SLCN
- **Max cards:** 4 / system
- **Per card:** 128 registered DECT devices · 48 simultaneous calls
- **System:** 250 devices · 192 simultaneous calls
- **Base station:** BS5 (via UP0/E)
- **Placement:** Max. 2 per PCM segment; right slot left empty (ventilation)
- **Distinction:** OS4000 SLMC is a separate product

## Use cases

- TDM-based DECT mobility on hospital/factory campuses.
- Integrated Cordless with a BS5 + SL7/M3 fleet.

## For a quote and BOM

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