Telecor 1SO339 ESBM-TB Speaker Breakout Module Assembly

The Telecor 1SO339 ESBM-TB Speaker Breakout Module Assembly is an interface module that plugs conventional analog speakers and call-initiating devices into a Telecor eSeries IP intercom and public address network, delivering paging, talkback, and emergency communication across a facility. Designed for Telecor eSeries Intercom and Paging System environments, it supports Telecor eCS call stations and standard push-button switches and provides three programmable relay outputs for automatic control tasks. The unit uses Ethernet with Power over Ethernet (PoE) and auto-discovery to simplify setup and maintenance, and it is commonly used by maintenance technicians and AV system integrators to expand systems, retrofit legacy speakers, or replace equipment. Speaker compatibility includes Telecor eSTB-12 speakers via CAT5 and conventional 8 Ω, 25 V, or 70 V speakers. Audio is transmitted as HD digital audio with a frequency response from 50 Hz to 7 kHz and a maximum bandwidth of 128 kbps during active communication. Typical applications encompass IP intercom systems, school public address and emergency notification networks, campus communication systems, healthcare paging, and commercial building audio installations where legacy speakers are integrated into a Telecor eSeries network for paging and talkback operations. OEM status is Genuine Telecor eSeries communication system module, with part number 1SO339 and model ESBM-TB.