TEJ-4A/PCI

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Decades of accumulated DSP technology for echo cancellation and voice processing, empowers the most competitive open source architectures with matchless price and reliability.

• 1/2/4 ports of T1/E1/J1 Digital telephony cards
• DSP-enabled echo cancellation of carrier-grade
• High robustness + Superior support>>> Matchless price

Compatible with Asterisk and other open source platform, the TEJ series is of the robust hardware architecture to help software developers and service providers deliver cost effective open source solutions, including IP-PBX, gateway, IVR or other telephony applications.  With 1, 2 or 4 trunks (T1/E1/J1) per card, the telephony cards of the TEJ series support up to 480 voice calls in a single system in the most difficulty situations.

The TEJ series leverages Synway's patent-pending echo cancellation technology and decades of voice processing expertise to guarantee high audio quality and unmatched pricing points for Asterisk-based solution providers. Up to 64 ms, the Synway's echo canceller is on-board DSP-enabled and eliminates the need for expensive echo cancellation module. Supporting each channel on the full four E1, T1 and J1 lines, the echo processing capability has been field-proven by some leading carrier labs and made Synway's product offerings the most cost affective and accountable worldwide.

Compatible with PCI or PCI-express interface, the TEJ series utilizes the latest DMA data processing technology to minimize the consumption of CPU capability, enabling developers to design the high-performance solutions featuring high robustness, scalability and interoperability in the demanding telecommunication environments.

KEY FEATURES AND BENEFITS
Configurable T1/E1/J1
A kind of highly flexible hardware platform, TEJ series supports software configurable T1/E1/J1 interfaces. Selectable interfaces, T1/E1/J1 lines, are conveniently available in a single box to fit into complex and hybrid environments, which improves system's flexibility.

Built-in echo Cancellation of Telco-grade
Each channel (up to 124 ports) supports quality echo cancellation (64 ms) and voice quality enhancements. A kind of built-in DSP-enabled capability based upon adaptive filter algorithm with automatic adjustments.

Open Sources Supported
Support Asterisk, Trixbox, Freeswitch and other open source for IP-PBX, gateway, IVR, voicemail and other telephony applications. Synway accumulates much know-how on hardware design and tech. support to help developers configure, evaluate, develop and design standard or custom open source solutions.

Scalability and Reliability
TEJ series (digital telephony card) utilizes DMA technology, and the optimized DMA streams minimize the hitting to host CPU. Most efforts have been offloaded from host CPU to the on-board DSP resources to maximize system's reliability in the most difficulty situation, enabling software developers and service providers to deliver highly flexible and scalable systems (up to 480ports).

Easy use and intelligence
To help you design an array of open source applications conveniently, the TEJ series is optimized with rich features like friendly interface, automatic configuration and troubleshooting, with 24x7 global availability of tech. support, helping you design an array of robust Asterisk-based or other open-source telephony systems.

TECHNICAL SPECIFICATIONS

T1/E1/J1 Interface
1 or 2 or 4 T1/E1 ports with a single PCI or PCI-Express interface optimized for high performance voice and data applications. Only software configurable for any kind of physical interfaces. Both T1 or E1 or J1 are mixed simultaneously in a single system.

A complete range of open sources supported
Support for Asterisk?, Trixbox and FreeSwitch, as well as other open source IP-PBX, Switch, IVR, or VoIP gateway applications.

DMA Read and Write
The use of PCI-based DMA technique for data reading and writing helps minimize the cost of the host CPU. 32-bit bus master DMA data exchanges across PCI interface
at 132 Mbytes/sec for minimum host processor intervention. Ring buffer DMA handling for minimum host intervention and guaranteed data integrity on high volume systems.
Optimized per channel DMA streams and hardware-level HDLC handling unload the host CPU.

Echo Cancellation
The self-adaptive echo cancellation technology taps 128 ms tails and can effectively eliminate echo effect during any hybrid VoIP application.

Physical characteristics
Dimensions: 160×107mm2
Weight: 100g

Environmental requirements
Operating temperature: 0-55; Storage temperature: -20-75
Humidity: 10-90 non-condensing; Storage humidity: 10-90 non-condensing   

Input/output Interface
Digital trunk interface: TEJ-1A/PCI: 1 RJ48C jack; TEJ-2A/PCI: 2 RJ48C jacks; TEJ-4A/PCI: 4 RJ48C jacks
E1 interface: Compliant with G.703, including 75Ω unbalanced interface and 120Ω balanced interface
T1/J1 interface: DSX-1 and CSU line build-outs available for different extents of signal losses, including 100Ω and 110Ω balanced interfaces

Audio Specifications
CODEC: CCITT A/μ-Law 64kbps; Distortion: ≤3 Frequency response: 300-3400Hz (?dB)
Signal-to-noise ratio: ≥38dB Echo suppression: ≥40dB

Maximum System Capacity
Depends on the system consumption of Asterisk and the processing capability of computer.

Audio Encoding & Decoding: A-Law & μ-Law(64kbps)

ampling Rate: 8kHz

Operating Systems
Linux (all versions, releases and distributions from 1.0 up).
FreeBSD.
Solaris.

Certification
CE, FCC Part 15 Class A and Class B , EN 55022, EN 55044, CISPR 22, CISPR 24

Safety: Lightning resistance: Level 4

Warranty
3-years warranty, contact representatives for details

Production Quality
ISO 9001

Additional files