Telecor Inc. 1SO337 ESBM-TB Speaker Breakout Module

The Telecor 1SO337 ESBM-TB Speaker Breakout Module is a Telecor eSeries interface that connects conventional analog speakers (8 Ω, 25 V, or 70 V) and call stations to an IP intercom and public address network, enabling paging, talkback, and emergency communication across Telecor’s eSeries system. It uses Ethernet with Power over Ethernet (PoE), delivers HD digital audio, and supports an audio frequency response from 50 Hz to 7 kHz with up to 128 kbps bandwidth during active communication. The module is compatible with the Telecor eSeries Intercom and Paging System and provides three programmable relay outputs for automation and control. It supports Telecor eCS series call stations and standard push-button call switches, and offers automatic network discovery with no manual network configuration required. Maintenance technicians, AV system integrators, and facility engineers rely on this module for system expansion, retrofit projects, equipment replacement, and integration of legacy analog speakers with modern IP-based networks. Common applications include IP intercom systems, school public address, emergency notification networks, campus communication, healthcare paging, and commercial building audio installations, where conventional speakers must be integrated into a Telecor eSeries network. OEM status is Genuine Telecor eSeries, with part number 1SO337 and model ESBM-TB; common replacements include 1SO324 ESBM-TB, 1SO344 ESBM-TB, and 1SO361 ESBM-TB.