Alcatel 300-1368-903 Rev C DEXCS SPA-1 Line Card

The Alcatel 300‑1368‑903 Rev C (also designated DEXCS SPA‑1, T1PQAC1) is a T1/E1 interface line card designed for telecom access and transport equipment. This card provides multiple T1 or E1 ports for connecting voice and data circuits to digital cross‑connect systems, multiplexers, or edge routers. It is a key component for network aggregation and circuit‑switched traffic handling.

Overview

The DEXCS SPA‑1 line card is typically used in Alcatel digital access and cross‑connect platforms. It supports both T1 (1.544 Mbps) and E1 (2.048 Mbps) operation, with software‑selectable line impedance and framing. The card includes built‑in line protection, performance monitoring, and loopback capabilities for diagnostics. It features front‑panel LEDs for link status and alarms.

Key Features

• Supports T1 (DS1) and E1 (PCM‑30/31) interfaces

• Software‑selectable line code: B8ZS (T1) / HDB3 (E1)

• Framing: SF, ESF (T1) / G.704 (E1)

• Built‑in line diagnostics: loopback, BER testing

• Performance monitoring: ES, SES, UAS

• Hot‑swappable for maintenance

• Management via SNMP and TL1

Technical Specifications

• Ports: 4 or 8 T1/E1 ports (RJ‑48c connectors)

• Data Rate: 1.544 Mbps (T1) or 2.048 Mbps (E1)

• Line Impedance: 100Ω (T1) / 120Ω (E1) – software selectable

• Line Code: B8ZS (T1) / HDB3 (E1)

• Framing: SF/ESF (T1) / G.704 (E1)

• Power Consumption: 15 W typical

• Operating Temperature: 0°C to 45°C

• Dimensions: Standard line card format

Applications

This line card is deployed in central office digital cross‑connects, multiservice access nodes, and edge routers to terminate T1/E1 circuits from PBX, mobile base stations, and leased lines.

Integration and Management

The card is managed through the host system, providing alarms for loss of signal, AIS, and excessive errors. Configuration and performance data are accessible via SNMP.

Installation and Maintenance

Install the card into the chassis slot, connect T1/E1 cables, and configure via management software. Routine maintenance includes monitoring error statistics and cleaning connectors.

Conclusion

The Alcatel 300‑1368‑903 Rev C line card offers reliable T1/E1 connectivity with robust diagnostic features, making it a trusted component for legacy circuit‑based networks.