Atlas Sound IED1544BAS – Four Channel Backup Amplifier Switch

What is the Atlas Sound IED1544BAS?

The IED1544BAS is a backup amplifier switching module that automatically transfers up to four independent speaker load channels from a primary power amplifier to a backup unit the moment a failure is detected — built for fault-tolerant redundancy in life-safety, paging, or critical public address installations.

How does the Atlas Sound IED1544BAS work?

In stand-alone mode, logic outputs from the primary amplifier trigger per-channel switching to the backup amplifier without any network infrastructure. In network control mode, switching is determined by the IED GLOBALCOM system supervision sub-system, and multiple 1544BAS units can share a single backup amplifier across a larger distributed system, with all switching logic handled via network commands. The module is powered by standard PoE (IEEE 802.3af) drawing a maximum of 4 watts, with an external +48VDC input available where PoE isn't used. A green power LED and per-channel yellow LEDs give technicians immediate status at a glance, and the enclosure mounts to a DIN rail or is screwed to a panel for placement close to the amplifiers in the rack.

What are the key features of the Atlas Sound IED1544BAS?

• Automatic per-channel switching — Maintains audio continuity on primary amplifier failure across 4 channels.
• Standalone or network control — Works independently via contact closure, or shares one backup amp across multiple units via GLOBALCOM network commands.
• IEEE 802.3af PoE powered — Eliminates dedicated power runs during rack installation.
• External 48VDC input — Backup power option for non-PoE deployments.
• Per-channel LED indicators — Immediate visual status for technicians.
• DIN rail or panel mount — Flexible placement close to amplifiers.

Where is the Atlas Sound IED1544BAS typically used?

• Government space
• Multi-purpose room
• Auditorium

Technical Specifications

Specifications sourced from AtlasIED. See the Atlas Sound collection for compatible GLOBALCOM amplifiers.

Frequently Asked Questions

Does this require network infrastructure to work?
No. In stand-alone mode it switches channels using contact closures from the primary amplifier with no network needed. Network control mode is optional and adds multi-unit backup sharing.

Can multiple primary amplifiers share one backup amp?
Yes, in network control mode, multiple 1544BAS units can switch several primary amplifiers to a single backup unit via GLOBALCOM network commands.

Does it need a separate power supply?
No, standard PoE (IEEE 802.3af) powers it; an external 48VDC input is available if PoE isn't used.

What warranty applies?
36 months from date of purchase.