Biamp 901.0313 Tesira EOC-4

Product Overview

The Biamp Tesira EOC-4 is a 4-channel expander output card for the Tesira EX-MOD modular expander. It adds four channels of mic/line level analog audio output to a Tesira system, letting integrators place output capability out in a local zone rather than at the central DSP. The card is specified when a Tesira SERVER, SERVER-IO, or TesiraFORTÉ AVB design needs remote analog outputs over the AVB network. It installs into an EX-MOD chassis as one of up to three I/O cards.

Product Description

The Tesira EOC-4 is one of the modular I/O cards for Biamp's Tesira EX-MOD, a 1RU expander that communicates with the Tesira system over AVB for audio networking, configuration, and control. The EX-MOD accepts up to three 4-channel cards in any combination of input and output types, and the EOC-4 provides the output side of that flexibility with four channels of balanced line-level analog audio. By locating an EX-MOD with EOC-4 cards near the loudspeakers or amplifiers in a given zone, integrators avoid long analog home runs back to the central rack and instead distribute audio digitally over the AVB network, converting to analog only where it is needed. Each output channel is software-controlled in Tesira, including mute, level, signal invert, and full-scale output reference, so the card integrates cleanly into the overall DSP design. The card carries the EX-MOD platform's audio performance, with a 48 kHz sampling rate, 24-bit converters, and balanced outputs rated to a maximum of +24 dBu. This makes the EOC-4 a good fit for larger rooms and multi-zone systems where output points are spread across the space. It sits alongside the companion input cards in the same family, including the EIC-4, EEC-4, and combination EIOC-4. For the full range of Tesira processors and expanders, browse the Biamp collection.

Key Features

• Four Analog Output Channels — The card provides four channels of balanced line-level analog audio output for the Tesira EX-MOD expander.
• Remote Output Placement — Installing the card in an EX-MOD lets integrators locate analog outputs near loudspeakers or amplifiers instead of at the central DSP.
• Software-Controlled Outputs — Each channel supports mute, level, signal invert, and full-scale output reference control within Tesira software.
• AVB Networked Audio — The host EX-MOD carries audio, configuration, and control over the Tesira AVB network for distributed system design.
• High Audio Performance — The platform uses a 48 kHz sampling rate and 24-bit converters with balanced outputs rated to a maximum of +24 dBu.
• Modular Flexibility — Up to three I/O cards fit in an EX-MOD in any combination, so output count is configured to each zone's needs.

Typical Applications

• Conference room
• Boardroom
• Auditorium
• House of worship
• Government space
• Training room
• Commercial meeting space

Technical Specifications

Source: Biamp Tesira EX-MOD data sheet (downloads.biamp.com). Confirm detailed specifications against current Biamp documentation.

Frequently Asked Questions

What device does the EOC-4 install into?
The EOC-4 is a card for the Tesira EX-MOD modular expander, which supports up to three I/O cards in any combination.

Which Tesira systems is the EX-MOD compatible with?
The EX-MOD is designed for use with Tesira SERVER, SERVER-IO, and TesiraFORTÉ AVB devices over the AVB network.

How many output channels does it add?
It adds four channels of balanced line-level analog audio output.

How are the outputs configured?
Each channel is controlled in Tesira software, including mute, level, signal invert, and full-scale output reference.

Why place outputs on an EX-MOD instead of the central DSP?
Locating outputs near the amplifiers or loudspeakers keeps audio digital over AVB across the building and avoids long analog cable runs to the rack.

Can I mix input and output cards in the same expander?
Yes. The EX-MOD accepts any combination of EIC-4, EEC-4, EOC-4, and EIOC-4 cards up to three cards total.

Is it covered by a warranty?
The Tesira EX-MOD platform is covered by Biamp's five-year warranty; confirm current terms in Biamp's warranty documentation.