The Alcatel‑Lucent 300‑0303‑900 (also designated T1D3PDL1AE) is a high‑capacity digital matrix card designed for telecom digital cross‑connect systems (DCS). This module provides flexible, non‑blocking switching of TDM circuits at the DS0, DS1, and DS3 levels, enabling efficient grooming and protection of voice and data traffic in central office and metro transport networks.
The digital matrix card is installed in a DCS chassis, where it interfaces with multiple high‑speed trunk lines. It performs circuit switching, timeslot assignment, and performance monitoring. The card supports 1+1 protection for critical circuits and includes built‑in diagnostics for fault isolation.
Non‑blocking TDM switching matrix
Supports DS0, DS1, and DS3 grooming
1+1 protection switching
Performance monitoring (G.826)
Hot‑swappable for maintenance
Management via TL1 and SNMP
Switch Capacity: Up to 512×512 DS0 equivalents
Interfaces: T1/E1 and DS3/E3
Power Consumption: 40 W typical
Operating Temperature: 0°C to 45°C
Dimensions: Standard DCS card format
This card is used in central office DCS systems for circuit grooming, network restoration, and service provisioning in TDM‑based telecom networks.
Managed through the DCS controller, providing circuit provisioning, performance reporting, and alarm handling.
Install the card into the chassis, connect trunk cables, and configure cross‑connects via software. Maintenance includes monitoring error logs and replacing the card if needed.
The Alcatel‑Lucent 300‑0303‑900 digital matrix card delivers robust, high‑capacity TDM switching for modern telecom networks.



