Clearance items can be either customer returns in "like-new" condition (Open Box Items), unused inventory stock rotation, or manufacturer refurbished. All items are tested, quality assured, fully functional, and carry a full 90 day manufacturer's warranty.
Rhino Quad FXO Analog PCI Card w/ Echo Cancellation
Managing your open source telecommunication needs
has never been easier than with Rhino products. Rhino PCI plug-in cards
satisfy the needs of Open Source Telephony (OST) applications, no
matter how stringent the requirement. Rhino Open Source Telephony PCI
cards feature Asterisk, Zapata and Linux tested software. Knowing that
Rhino products are ready to perform right out of the box means that you
can spend more time developing important customer relationships.
The Rhino R4FXO-EC is “ready to roll” with two incredible feature
differentiation over our competition - our on-board control element,
and our on-board Echo Cancellation circuit. The control element
eliminates PCI bus “bit banging”, which means that the R4FXO requires
less CPU power, and more Rhino cards can be used in one computer over
alternative, antiquated solutions. The Echo Cancellation circuit
provides echo protection no matter what, to ensure that calls are
clear, crisp and echo free.
Rhino Equipment Corp. offers you a complete line of low cost PCI plug-in
cards including Single T1/E1, Dual T1/E1, Quad T1/E1, Quad FXO analog,
Octal FXS/FXO and 24-port analog fixed and mixed mode analog
interfaces. And don’t forget the full line of Rhino Channel Bank
products, for large scale analog FXS or FXO applications.
Using Asterisk? Rhino Open Source Analog Telephony PCI products allow you to
utilize analog phones and wiring in conjunction with leading-edge
Asterisk technology -- without having to buy expensive IP telephones.
Why go IP when you can save on installations by using your proven
existing wiring? Rhino allows you to use lower cost analog phones with
digital features, get guaranteed T1 voice quality, all with less to
worry about while enjoying other Asterisk features.
Rhino Quad FXO Analog PCI Card w/ Echo Cancellation Specifications
• Asterisk soft PBX tested and ready
• Zaptel-compliant open source Linux module source code
• On-board Texas Instruments and Adaptive Digital
• Proven Silicon Labs FXO DAA component - Si3050
• Silicon Labs international line interface device - Si3019
• Custom Rhino PCI interface chip means no excess CPU overhead
• Rhino on-board control
element eliminates PCI bus bit banging. The R4FXO loads the PCI bus to no more than the load of a T1 card.
• Four RJ11 jacks at card bracket
• Field software upgradable
• All major signaling modes
• Advanced features such as Caller ID and Distinctive Ring
• 5-year limited warranty
Echo Cancellation Specifics
• On-board - no module
• Adaptive Digital Technologies G.168 Echo Canceller is a
carrier-class, ITU G.168 compliant line echo canceller, which meets and
• Cancels up to 128msec tail
• Non-linear processor
• Comfort Noise Generator
• Automatic tail search
• Excellent voice quality
• Cancels multiple independent tails
• Fast Convergence
• No divergence due to
• Tone Disabler disables echo canceller during voiceband modem and FAX connections
Rhino Quad FXO Analog PCI Card w/ Echo Cancellation Resources