Telecor Inc. 1SO391 Speaker Breakout Module ESeries

The Telecor Inc. 1SO391 eSeries Speaker Breakout Module (eSBM‑TB) is an interface that bridges conventional analog speakers and call-initiating devices with Telecor’s eSeries IP intercom and public address network, enabling paging, talkback, and emergency communications over Ethernet. It supports Telecor eSTB-12 speakers via CAT5 cable and conventional 8 Ω, 25 V, and 70 V speakers, and provides three programmable relay outputs for automatic control functions, while delivering high-definition digital audio with a 50 Hz to 7 kHz frequency response and up to 128 kbps maximum audio bandwidth during active communication. Compatible with Telecor eSeries Network Intercom and Public Address systems, it works with Telecor eCS series call stations and standard push-button call switches, and features automatic network discovery with no manual IP configuration required; power is supplied via Power over Ethernet (PoE) as a genuine Telecor eSeries component for system expansion, retrofit projects, or replacement of legacy analog speaker installations in schools, healthcare facilities, campuses, and commercial buildings.