Biamp 901.0306 Tesira STC-2

Product Overview

The Biamp Tesira STC-2 is a 2-line telephone interface card that connects a Tesira SERVER or SERVER-IO directly to standard analog telephone lines. It is the card integrators specify when a conferencing room needs to bring POTS callers into a Tesira-based audio system. More than a simple hybrid, this Tesira telephone interface card handles line-echo cancellation, caller ID, DTMF dialing and decoding, and call progress detection. Combined with Tesira's echo cancellation processing, the STC-2 turns Tesira into a capable teleconferencing platform.

Product Description

The STC-2 provides two analog telephone line interfaces on a single modular card for Tesira SERVER and SERVER-IO devices. Each channel performs the 2-wire to 4-wire hybrid function along with line-echo cancellation, noise suppression, caller ID decoding, ring detection and validation, DTMF tone dialing, DTMF decoding, and call progress tone decoding. This depth of telephony processing makes the STC-2 a practical choice for AV system integration projects in boardrooms and conference rooms that still rely on analog phone lines for audio conferencing or paging access. Because the card can respond to DTMF commands, a Tesira system can be controlled remotely; for example, a caller can trigger preset recalls from any telephone. The STC-2 can also be used for input-only applications such as paging access, or output-only applications such as broadcast feeds and remote system monitoring. The card is controlled through commands from external control systems, control dialog boxes in Tesira software, or logic within Tesira or RCB devices, and it offers extensive customization parameters including country selection and hybrid balance. It incorporates AES48-2005 grounding and EMC practices, is RoHS compliant, and carries Biamp's 5-year warranty. Pair it with the Tesira SEC-4 AEC input card, or browse the full Biamp collection.

Key Features

• Two Analog Telephone Lines — The card connects a Tesira system directly to two standard analog telephone lines.
• Line Echo Cancellation — Each channel includes line-echo cancellation with adaptive or static modes and adjustable echo span.
• Full Call Handling — The card supports outgoing DTMF and speed dialing, redial, flash, and detection and answering of incoming calls.
• Caller ID and Call Progress — It decodes caller ID and call progress tones and provides ring detection and validation.
• DTMF Remote Control — The system can respond to DTMF commands such as preset recalls initiated from any telephone.
• Continuous Line Monitoring — The card provides continuous line status and fault monitoring, including line intrusion detection.
• Flexible Control — Control is available from external control systems, Tesira software dialog boxes, or logic within Tesira or RCB devices.
• 5-Year Warranty — The STC-2 is covered by Biamp Systems' 5-year warranty.

Typical Applications

• Boardroom
• Conference room
• Commercial meeting space
• Multi-purpose room
• Government space
• Training room

Technical Specifications

Specifications sourced from the Biamp Tesira STC-2 datasheet. Confirm detailed specifications against current Biamp documentation.

Frequently Asked Questions

Which Tesira devices accept the STC-2?
The STC-2 installs in Tesira SERVER and SERVER-IO devices and can be mixed and matched with other modular cards.

What kind of phone lines does it connect to?
It connects directly to two standard analog (POTS) telephone lines.

Does it handle echo on phone calls?
Yes. Each channel includes line-echo cancellation, and it pairs well with Tesira acoustic echo cancellation for full conferencing.

Can callers control the system?
Yes. The card decodes DTMF, so a Tesira system can respond to commands such as preset recalls from any telephone.

Can it be used for paging or broadcast feeds?
Yes. It supports input-only applications such as paging access and output-only applications such as broadcast feeds and remote monitoring.

How is the card controlled?
Through external control systems, Tesira software dialog boxes, or logic within Tesira or RCB devices.

What warranty applies?
Biamp covers the STC-2 with a 5-year warranty.