Alcatel-Lucent 408981363 Jigsaw A Band Block

The Alcatel‑Lucent 408981363 (also known as Jigsaw A Band Block, model KS24624L58) is a power distribution and protection unit designed for telecom central office environments. It operates with both 24 VDC and -48 VDC systems, providing fused or breaker‑protected outputs for multiple equipment loads. The band block is a key component in power distribution frames, ensuring safe and reliable power delivery to various network elements.

Overview

The Jigsaw A band block is part of Alcatel‑Lucent's power distribution family, typically mounted in a 19‑inch rack or bay. It accepts input power from the main bus bars and distributes it to multiple fused output circuits. Each output is equipped with a fuse or circuit breaker for overcurrent protection, and status indicators show the health of each circuit. The unit is designed for high‑availability telecom applications where power continuity is critical.

Key Features

• Dual‑voltage support: 24 VDC and -48 VDC (selectable or combined)

• Multiple output circuits (typically 12‑24 positions)

• Fuse or circuit breaker protection per circuit

• LED indicators for each output (power ON, fuse blown)

• Front‑accessible fuse holders for easy replacement

• Alarm contacts for remote monitoring of fuse failures

• High‑grade insulation and safety clearances

Technical Specifications

• Input Voltage: 24 VDC or -48 VDC (nominal), ±20% tolerance

• Input Current: Up to 100 A (depending on configuration)

• Output Circuits: 24 positions (typical), each rated 10‑30 A

• Protection: Fuses (GMT or similar) or magnetic circuit breakers

• Indicators: Green LED (power OK), Red LED (fuse blown)

• Alarm Output: Dry contact relay, Form C, rated 24 VDC/1A

• Operating Temperature: 0°C to 50°C

• Dimensions: 1U or 2U rack‑mountable, 19‑inch width

• Mounting: Standard EIA rack

Applications

This band block is used in central offices, data centers, and telecom shelters to distribute power to routers, switches, optical equipment, and other DC‑powered devices. It is ideal for installations where multiple low‑current loads need individual protection.

Installation and Maintenance

Mount the unit in a rack, connect input power cables from the rectifier or battery bus, and wire each output to the respective load. Ensure proper fuse ratings for each circuit. Routine maintenance involves checking LED status, replacing blown fuses, and verifying alarm contacts.

Conclusion

The Alcatel‑Lucent Jigsaw A band block provides reliable, organized power distribution with circuit protection, essential for maintaining uptime in telecom infrastructure.