Dialogic VFX/41JCT-LS Media Boards
Field proven, high performance, 4 port media processing for media and advanced fax processing

Dialogic VFX/41JCT-LS Media Boards

Dialogic Products

JCT Media Boards

Dialogic VFX/41JCT-LSEW 4-port Analog Media Board, Loop-Start, PCIe

#887-492
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Overview:

The Dialogic VFX/41JCT-LS Media Board is a 4-port analog converged communications board that supports voice, fax, and software-based speech recognition processing in a single PCI Express slot, providing four (4) analog telephone interface circuits for direct connection to analog loop start lines.

Dialogic JCT Media Boards – including this model - can be used by developers to provide small- and medium-sized enterprise Computer Telephony (CT) applications that require high-performance voice and fax processing. Among the features and benefits of this model, and other Dialogic JCT Media Boards, are the following. They use Digital Signal Processor (DSP) voice processing technology, making them wellsuited for server-based CT systems under Windows and Linux. They also provide a powerful platform for creating sophisticated Interactive Voice Response (IVR) applications for the small and medium-sized enterprise market segments. Their Caller ID support lets applications, such as IVR, receive calling party information via a telephone trunk line; Caller ID is supported for North America (CLASS protocol), the United Kingdom (CLI protocol), and in Japan (CLIP protocol). Features such as fax and software-based speech recognition processing enable unified messaging applications. They also provide Automatic Gain Control (AGC), so even a weak telephone signal can be recorded and replayed with clarity.

Features and Benefits:

Features	Benefits
Supports up to four (4) channels of enhanced on-board fax	Reduces the number of boards per system
Supports Continuous Speech Processing (CSP)	Provides a flexible speech processing technology, which, when coupled with efficient drivers, off-loads critical real-time signal processing in speech-enabled applications to on-board DSPs. Reduces system latency, increases recognition accuracy, and improves overall system response time for high-density speech solutions.
Available in PCI Express form factor	PCI Express form factor compatible with x1 lane configuration or higher
A-law or µ-law voice coding at dynamically selectable data rates, 24 kbit/s to 64 kbit/s, selectable on a channel-by-channel basis	Allows for a beneficial tradeoff between disk storage and voice quality
Telcordia CLASS, UK CLI, Japanese Caller ID, and other international protocols	Supports international Caller ID capability via on-hook audio path
Advanced outbound call progress analysis	Monitors outgoing call status quickly and accurately

Specifications:

Technical Specifications
Number of ports	4
Maximum boards per system	8
CT Bus loads per board	1
Maximum CT Bus loads per system	20
Digital network interface	4 on-board loop start interface circuits
Resource sharing bus	CT Bus H.100
Control microprocessors	80C186 @ 34.8 MHz
Digital signal processor	Freescale DSP56303 @ 100 MHz, with 128Kx24 private SRAM
Supported operating systems	Windows; Linux
CSP	Yes
FAX	Yes
Signaling	Analog loop start
Host Interface
Bus compatibility	Complies with PCI-SIG PCI Express Base Specification, Rev. 1.1; x1 or higher compatible
Shared memory	32 KB page
Interrupt	Legacy INTA emulation shared by Dialogic JCT PCIe Media Boards
Physical Dimensions
Dimensions	Standard-height, full-length form factor 12.3 in. (31.24 cm) long without edge retainer, or 13.3 in. (33.78 cm) long with edge retainer 0.79 in. (2 cm) wide (total envelope) 3.87 in. (9.83 cm) high (excluding edge connector)
Power Requirements
+12 VDC	450 mA maximum
Environmental Requirements
Operating temperature	+32°F (0°C) to +122°F (+50°C)
Storage temperature	-4°F (–20°C) to 158°F (+70°C)
Humidity	8% to 80% noncondensing
Telephone Interface
Trunk type	Loop start
Impedance	600 Ohms nominal
Ring detection	15 Vrms minimum, 13 Hz to 68 Hz, (each configurable by parameter*)
Loop current range	20 mA to 120 mA
Echo return loss	Configurable by software parameter
Crosstalk coupling	Less than –70 dB at 1 kHz channel to channel
Receive signal/noise ratio	70 dB referenced to –15 dBm
Frequency response	200 Hz to 3400 Hz ±3 dB (transmit and receive)
Connector	4 RJ-11 type
Reliability
Estimated MTBF	Per Telcordia Method 1 230,000 hours
Springware/JCT Technical Specifications
Facsimile
Fax compatibility	ITU-T G3 compliant (T.4, T.30) ETSI NET/30 compliant
Data rate	14.4 kbit/s (v.17) send 9.6 kbit/s (v.29) receive
Variable speed selection	Automatic step-down to 12,000 bit/s, 9600 bit/s, and lower
Transmit data modes	API-selectable Modified Huffman (MH) Modified Read (MR) Modified Modified Read (MMR) with Error Correction Mode (ECM)
Receive data modes	API-selectable MH, MR, and MMR with ECM
File data formats	Tagged Image File Format-Fax (TIFF-F) for transmit/receive MH, MMR, and ASCII text transmit
ASCII-to-fax conversion	Host-PC-based conversion Direct transmission of text files Windows fonts supported Page headers generated automatically
Error correction	Detection, reporting, and correction of faulty scan lines
Image widths	1728 pixels 2048 pixels 2432 pixels
Image scaling	Automatic horizontal and vertical scaling between page sizes
Polling modes	Normal Turnaround
Image resolution	Normal (203 pels/in. x 98 lines/in.; 203 pels/2.54 cm x 98 lines/2.54 cm) Fine (203 pels/in. x 196 lines/in.; 203 pels/2.54 cm x 196 lines/2.54 cm)
Fill minimization	Automatic fill bit insertion and stripping
Audio Signal
Receive range	–40 dBm to +2.5 dBm0 nominal, configurable by parameter*
Automatic gain contro	Application can enable/disable Above –18 dBm0 results in full-scale recording, configurable by parameter*
Silence detection	–40 dBm nominal, software adjustable*
Transmit level (weighted average)	–9.5 dBm nominal, configurable by parameter*
Transmit volume control	40 dB adjustment range, with application-definable increments, capped according to country-specific regulations
Frequency Response
24 kbit/s	300 Hz to 2600 Hz ±3 dB
32 kbit/s	300 Hz to 3400 Hz ±3 dB
48 kbit/s	300 Hz to 2600 Hz ±3 dB
64 kbit/s	300 Hz to 3400 Hz ±3 dB
Audio Digitizing
13 kbit/s	GSM 6.10 @ 8 kHz sampling
24 kbit/s	4-bit OKI ADPCM @ 6 kHz sampling
32 kbit/s	4-bit OKI ADPCM @ 8 kHz sampling G.726 @ 8 kHz sampling
48 kbit/s	G.711 µ-law PCM @ 6 kHz sampling
64 kbit/s	G.711 µ-law PCM @ 8 kHz sampling
Digitization selection	Selectable by application on function call-by-call basis
Playback speed control	Pitch controlled Available for 24 kbit/s and 32 kbit/s data rates Adjustment range: ±50% Adjustable through application or programmable DTMF control
DTMF Tone Detection
DTMF digits	0 to 9, *, #, A, B, C, D per Telcordia LSSGR Sec 6
Dynamic range	–38 dBm0 to –3 dBm0 per tone, configurable by parameter*
Minimum tone duration	40 ms, can be increased with software configuration
Interdigit timing	Detects like digits with a >40 ms interdigit delay Detects different digits with a 0 ms interdigit delay
Acceptable twist and frequency variation	Meets Telcordia LSSGR Sec 6 and EIA 464 requirements
Noise tolerance	Meets Telcordia LSSGR Sec 6 and EIA 464 requirements for Gaussian, impulse, and power line noise tolerance
Cut-through	Local echo cancellation permits 100% detection with a >4.5 dB return loss line
Talk-off	Detects less than 20 digits while monitoring Telcordia TR-TSY-000763 standard speech tapes (LSSGR requirements specify detecting no more than 470 total digits) Detects 0 digits while monitoring MITEL speech tape #CM 7291
Global Tone Detection
Tone type	Programmable for single or dual
Maximum number of tones	Application-dependent
Frequency range	Programmable within 300 Hz to 3500 Hz
Maximum frequency deviation	Programmable in 5 Hz increments
Frequency resolution	±5 Hz. Separation of dual frequency tones is limited to 62.5 Hz at a signal-to-noise ratio of 20 dB
Timing	Programmable cadence qualifier, in 10 ms increments
Dynamic range	Programmable, default set at –6 dBm0 to –3 dBm0 per tone
Global Tone Generation
Tone type	Generate single or dual tones
Frequency range	Programmable within 200 Hz to 4000 Hz
Frequency resolution	1 Hz
Duration	10 ms increments
Amplitude	Programmable within –43 dBm to –3 dBm per tone
MF Signaling
MF digits	0 to 9, KP, ST, ST1, ST2, ST3 per Telcordia LSSGR Sec 6, TR-NWT-000506 and ITU-T Q.321
Transmit level	Complies with Telcordia LSSGR Sec 6, TR-NWT-000506
Signaling mechanism	Complies with Telcordia LSSGR Sec 6, TR-NWT-000506
Dynamic range for detection	–25 dBm0 to –3 dBm0 per tone
Acceptable twist	6 dB
Acceptable frequency variation	Less than ±1 Hz
Call Progress Analysis
Call Progress Analysis	Busy tone detection Ring back tone detection Positive voice detection Positive answering machine detection Fax/modem detection Intercept detection Dial tone detection before dialing
Tone Dialing
DTMF digits	0 to 9, *, #, A, B, C, D per Telcordia LSSGR Sec 6, TR-NWT-000506
Frequency variation	Less than ±1 Hz
Rate	10 digits/s, configurable by parameter*
Level	–4.0 dBm per tone, nominal, configurable by parameter*
Pulse Dialing
10 digits	0 to 9
Pulsing rate	10 pulses/s, nominal 20 pulses/s for Japan, configurable by parameter*
Break ratio	60% nominal, configurable by parameter*
Analog Caller Identification
Applicable standards	Telcordia TR-NWT-000030 Telcordia TR-NWT-000031 Telcordia TR-NWT-001188 TAS T5 PSTN1 ACLIP: 1994 (Singapore)
Modem standard	Bell 202 or V.23, serial 1200 bits/sec (simplex FSK signaling)
Receive sensitivity	–48 dBm (–50 dBv) to –1 dBm
Noise tolerance	Minimum 18 dB SNR over 0 to –48 dBm dynamic range
Data formats	Single Data Message (SDM) and Multiple Data Message (MDM) formats via API calls and commands
Line impedance	AC coupled 600 Ohm (@ 1.8 kHz) termination during Caller ID on-hook detection interval
Message formats	ASCII or binary SDM, MDM message content
Analog Display Services Interface (ADSI)
Analog Display Services Interface (ADSI)	FSK generation per Telcordia TR-NWT-000030 CAS tone generation and DTMF detection per Telcordia TR-NWT-001273

* Analog levels: 0 dBm0 corresponds to a level of +3 dBm at tip-ring analog point. Values vary depending on country requirements; contact your account manager

Documentation:

Download the Dialogic VFX/41JCT-LS Media Boards Datasheet (.PDF)