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The SHD Series, an open-access framework, delivers developers and integrators a new level of flexibility while reducing total lifecycle costs. The SHD series is available in either PCI or cPCI form factors, and satisfies both rich media processing and digital PSTN interface needs in a wide range of voice and signaling applications.

With in-house powerful signaling processing package, SHD series products combine a variety of superior signaling capabilities and can be easily configured among CAS, ISDN and SS7 signaling to be compatible with most telephony environments worldwide. In addition, with special signaling-irrelative call handling functions, Synway's in-house unified API makes switching of different signaling systems possible, eliminating the need to modify source code and hardware circuits.

Committed to combining voice, signaling, conference and fax in a single board, SHD series adopts the latest DSP architecture with unique algorithm to differentiate SHD processing capabilities from substitutes. Building on the latest DSP architecture across the whole series, SHD delivers increased processing power, more efficient power management, and digital network interface (softwareselectable E1/T1 network interfaces are available to eliminate multiple hardware platforms)

1~16E1/T1 Digital Trunking
1, 2, 4, 8,16E1/T1 digital interfaces in a single slot for connection to PSTN, voice processing, conferencing, FSK communications (1200 bits/s and 2400 bits/s), HDLC communication capabilities, as well as 1~16 SS7 signaling links on a single board.

PCI/cPCI Interface
Boards with cPCI interface supports high-availability for maintenance and replacement during system run time, with over 99.99% availability in high capacity.

Built-in Voice Processing Resource
Support: A-law, u-law and IMA ADPCM format, record/playback of Windows WAV file, tone generation/reception/detection for signals, FSK receiver/transmitter, HLDC processing, adaptive echo cancellation, barge-in functionality.

Distributed Teleconferencing
Built-in conference resource in each port, support conference recording and monitoring; DTMF filtering to eliminate DTMF signal in conference, and can be configured as interactive teleconferencing without limit on the number of conferees and conferences in multiparties.

Rich DSP Resources
Efficient management of DSP resources minimizes host overhead and maximizes host processing time for applications; DSP-based voice, DTMF/MF and call process analysis ensure application reliability.

Multiple Signaling Capabilities in Single Board
International CAS, ISDN and SS7 supported: SHD supports ISDN PRI, CAS, QSIG, CORNET, MTP, TUP, ISUP, SCCP, TCAP, and include functions such as multi-DPC application, multi-link group and hot backup, changeback and changeover.

All-in-One Architecture
Universal port capability supports conference, fax, voice and signaling processing and built-in SHD Series functions to ensure scalability, compatibility, and high performance to leverage developer time and application investment.

In-House Unified API
Simplify system development and deployment efforts; protocol-independent open access interface for CAS, ISDN and SS7; support polling and event-driven modes, and feature-rich software development kits support Windows and Linux

FAX Resource
16~80 channels of DSP based Group 3 FAX resources available, transmission speed up to 14400bps; support .TIF file; Fax transmission of all kinds of printable files, easily viewed and printable; Fax capability is software configurable.

Switching Bus
Full-speed H.100/H.110 bus with 4,096 timeslots supports interoperability with other H.100/H.110 boards in open-architecture, high-capacity systems, and hierarchical switching model improves system and application scalability.

Max. System
Up to 8 boards per system (PCI boards with upto 80E1 and cPCI with up to 128E1).

Operating temperature: 0℃—55℃
Storage temperature: -20℃—85℃
Humidity: 8%— 90% non-condensing
Storage humidity: 8%— 90% non-condensing

Input/output Interface
E1 Physical Ports: compliant with G.703, including 75Ω unbalanced interface and 120Ω balanced interface
T1 Physical Ports: 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 (±3dB)
Signal-to-noise ratio: ≥38dB
Echo suppression: ≥40dB

Maximum System Capacity
Up to 8 digital trunk boards concurrently per system; up to 120 or 240 channels per board

Power Requirements
+3.3V DC: 1.5A
Maximum Power Consumption: ≤5W

SS1: Compliant with DL and MFC standards stipulated in GF002-9002
SS7: Compliant with related provisions stated in Q771-Q795
DSS1: Compliant with Q.933

Audio Encoding & Decoding
16Bit PCM 128kbps
8Bit PCM 64kbps
A-Law 64kbps
μ-Law 64kbps
IMA ADPCM 32kbps
GSM 13.6kbps
MP3 8kbps

Lightning Resistance: Level 4
Certification: FCC; CE; CCC