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Dialogic Dual Span™-JCT Series

48- and 60-Port Voice Processing with Digital Network Interface

PDF 145KB

Features and Benefits

  • High channel-per-slot density: two T-1 ISDN PRI trunks with 48 channels of voice processing or two E-1 ISDN PRI trunks with 60 channels of voice processing
  • Supports CSP: a flexible speech processing technology, coupled with efficient drivers, off-loads critical real-time signal processing in speech-enabled applications to onboard DSPs. Reduces system latency, increases recognition accuracy, and improves overall system response time for high-density speech solutions.
  • High channel-per-slot density: two T-1 ISDN PRI trunks with 48 channels of voice processing or two E-1 ISDN PRI trunks with 60 channels of voice processing
  • Supports CSP: a flexible speech processing technology, coupled with efficient drivers, off-loads critical real-time signal processing in speech-enabled applications to onboard DSPs. Reduces system latency, increases recognition accuracy, and improves overall system response time for high-density speech solutions.
  • Supports DSP-based onboard fax and host-based speech recognition to maximize the number of boards in the system
  • Supports G.726 bit exact and GSM coders, letting developers implement unified messaging applications that meet VPIM standards
  • Offered in industry-standard 32-bit PCI form factor with universal connector
  • Silence-compressed recording eliminates silence and preserves hard disk space
  • H.100 connector lets developers take advantage of the industry-standard CT Bus and increases the board's capacity to interoperate with other CT Bus compatible boards
  • SpringWare downloadable signal and call processing firmware provides easy feature enhancement and field-proven performance based on over four million installed ports
  • PerfectDigit DTMF (touchtone) provides reliable detection during voice playback - lets callers "type-ahead" through menus
  • Support under GlobalCall software lets the same application work on multiple signaling systems worldwide (e.g., ISDN, T-1 robbed-bit, R2/MF, pulsed, MF Socotel)
  • Intel® Dialogic® CT Media™ server software support facilitates multi-application development
  • Supports the BoardWatch tool, the SNMP-compatible software for remote CT board management
  • Enables system integrators and developers to lower costs by incorporating more ports per chassis, using less expensive desktop-style machines, and easing configuration/installation effort
  • SDKs for Windows NT*, Windows* 2000, and Linux* yield faster time to market

Applications

  • Voice-enabled e-Commerce or voice portal solutionså
  • Unified messaging
  • Follow-me/one-number service
  • Voice messaging
  • Speech-enabled interactive media response system
  • Web-enabled call center or contact center

The Intel® Dialogic® brand D/480JCT-2T1 and D/600JCT-2E1 boards are the next generation of SpringWare-based DualSpan products. They are ideal for developers seeking to provide cost-effective, highly scalable, high-density communications applications requiring multimedia resources such as voice, software-based speech recognition, fax, and digital network interface in a single personal computer (PC) slot. These boards offer a rich set of advanced features and support digital signal processing (DSP) technology and industry-standard PCI bus and CT Bus technologies.

Support for the innovative continuous speech processing (CSP) technology enables seamless integration of software-based speech recognition software from leading speech technology vendors. Onboard DSP-based fax and support for software-based speech recognition lets developers maximize the number of boards in the system for multimedia communications applications such as Web-enabled call centers, voice portals, unified messaging, or speech-enabled interactive voice response (IVR). The option to use new voice coders such as GSM and G.726 (the de facto standards when complying with Voice Profile for Internet Messaging [VPIM] standards) provides the capability to build unified messaging solutions while working with existing legacy messaging systems. In addition, support under GlobalCall and CT Media™ software facilitates global deployment and adds the flexibility to scale systems to meet the growing needs of your business.

Configurations

Use DualSpan-JCT boards to develop sophisticated, multimedia communications systems incorporating capabilities such as voice processing, facsimile, text-to-speech (TTS), and automatic speech recognition (ASR). These boards share a common hardware and software architecture with other Dialogic SCbus and CT Bus boards for maximum flexibility and scalability. You can add features and grow the system while protecting your investment in hardware and application code. Applications can be ported easily to lower or higher density platforms, with only minimum modifications.

DualSpan-JCT boards install in any PCI-based PC or server (PCI bus or mixed PCI/ISA bus) and compatible computers (Intel386™, Intel486™, or Pentium® processors or Sun UltraSPARC*). Each board occupies a single expansion slot and up to 10 boards can be configured in a system. The number of boards and channels supported varies depending on the application, the operating system, the amount of disk I/O required, the number of CT Bus loads per board, and the host computer's CPU(s) and power supply.

In a drop-and-insert configuration, use DualSpan-JCT boards and a DTI board connected via the CT Bus/SCbus to pass T-1 or E-1 time slots through to each other. This configuration joins two separate T-1 or E-1 lines, or it can be placed in-line between a T-1 or E-1 line and a switch (a PBX, for example). Calls on individual channels can either terminate at a call processing resource on a DualSpan-JCT series board, or "flow through" transparently to the DTI board.

Terminate Configuration

In a drop-and-insert configuration, use Dual Span-JCT boards and an additional network interface board connected via the CT Bus/SCbus to pass T-1 or E-1 time slots through to each other. This configuration joins two separate T-1 or E-1 lines, or it can be placed in-line between a T-1 or E-1 line and a switch (a PBX, for example). Calls on individual channels can either terminate at a call processing resource on a Dual Span-JCT series board, or "flow through" transparently to the network interface board.

Drop-and-Insert Configuration

ISDN-PRI Support

The Dialogic ISDN Primary Rate Interface (PRI) firmware is a standard feature of the DualSpan-JCT Series. The Dialogic PRI firmware is approved for use with many popular protocols in major market segments, based on both T-1 (1.544 Mb/s) and E-1 (2.048 Mb/s) physical interfaces.

Features and benefits of ISDN PRI include:

  • ISDN PRI connectivity to computer telephony (CT) systems
  • Dialed Number Identification Service (DNIS) lets the application route incoming calls by automatically identifying the number the caller dialed
  • Automatic Number Identification (ANI) lets the application identify the calling party
  • ANI-on-Demand feature saves money by selectively requesting ANI information only when needed
  • ISDN offers inherent benefits to call center applications with its fast call setup and fast retrieval of DNIS and ANI information on inbound calls
  • Call-By-Call Service Selection lets an application select the most efficient bearer channel service on a call-by-call basis
  • Subaddressing allows direct connection to individual extensions or devices sharing the same phone number, or as a proprietary messaging mechanism
  • Powerful and universal software interface simplifies access for developers who are unfamiliar with ISDN, yet enables sophisticated control of features
  • Multinational approvals with many popular protocols
  • User-to-User Information lets an application send proprietary messages to remote systems during call establishment
  • Facility, Notify, and optional Information Elements (IEs) let applications work with network-specific supplementary services
  • Layer 2 access empowers developers to build customized Layer 3 protocol
  • Ability to dynamically set protocol timers through host application programming interfaces (APIs)
  • Programmable Startup Cause Value presentation to the network lets the user reject an incoming call with a preassigned cause value if the host has not yet done a waitcall on that channel
  • Maskable Layer 2 Control lets the application toggle between bringing Layer 2 up and down as desired
  • Support for SERVICE, SERVICE_ACK, and STATUS ENQUIRY messages

Software Support

DualSpan-JCT boards are supported by the System Software and Software Development Kits (SDKs) for Windows NT*, Windows* 2000, and Linux*. These packages contain a set of tools for developing sophisticated, multimedia communications applications.

DualSpan-JCT boards can use GlobalCall software, a call control interface that simplifies the development and use of compelled R2 and other special signaling protocols. In addition, DualSpan-JCT boards support CT Media server software which facilitates multi-application development. These boards also support the BoardWatch tool, the SNMP-compatible software for remote CT board management. BoardWatch software simplifies the management of CT devices and lowers the total cost of operation. Centralized management capabilities provide a single point of configuration and inventory for all network devices. Fault management for high availability systems includes diagnostics, detection, and recovery capabilities.

Functional Descriptions

D/480JCT-2T1

The D/480JCT-2T1 board connects directly to a channel service unit (CSU), digital service unit (DSU), or to other network terminating equipment. The CSU chosen must support the D4 or ESF (within ISDN) superframe format. Most functions traditionally performed by a DSU (such as unipolar to bipolar format conversion, framing, etc.) are performed by the D/480JCT-2T1 board. (The only exception is the ability to interpret certain bipolar violation patterns such as loopback start and stop commands from the T-1 network.)

The board processes the digital on-hook/off-hook signaling information and digital voice signals from the telephone network. Digital T-1 signals enter the board via a T1XC line interface (see block diagram). The line interface contains a software-switchable clock that can be set to any of the following settings:

  • Loop (clocking is slaved to the external network)
  • Independent (clocking is derived from an onboard oscillator)
  • Expansion (clocking is slaved to another bus clock master board)

The incoming T-1 bit stream is applied to a CT612 chip, which acts as a traffic coordinator for each channel and as an interface to the CT Bus. This serial bit stream contains the digitized voice data and the signaling information for the incoming call.

Each of four CT612 functional modules on the D/480JCT-2T1 board transmits several lower speed data streams over a single high-speed channel. The bus configuration is set when the firmware is downloaded at system initialization. These chips incorporate matrix switching capabilities. Under control of an onboard control processor, a CT612 functional module can connect a call being processed or an available external resource to any of the CT Bus time slots. This lets the application route calls to any added resources such as fax, TTS, or ASR.

A DSP resource receives digital voice data via a CT612 module. The DSP processes the data based on SpringWare firmware loaded in its high-speed RAM. Each DSP performs the following signal analysis and operations on this incoming data:

  • applies automatic gain control (AGC) to compensate for variations in the level of the incoming audio signal
  • applies an Adaptive Differential Pulse Code Modulation (ADPCM), Pulse Code Modulation (PCM), GSM, or G.726 algorithm to compress the digitized voice and save disk storage space
  • detects the presence of tones - DTMF, MF, or an application-defined, single- or dual-frequency tone
  • detects silence to determine whether the line is quiet and the caller is not responding

For outbound data, the DSP performs the following operations:

  • expands stored, compressed audio data for playback
  • adjusts the volume and rate of speed of playback upon application or user request
  • generates tones — DTMF, R2MF, or any application-defined, general-purpose tone

The dual processor combination associated with each line interface also performs the following outbound dialing and call progress monitoring functions:

  • transmits an off-hook signal to the telephone network
  • dials out (makes an outbound call)
  • monitors and reports call progress results: line busy or congested; operator intercept; ring, no answer; or if the call is answered, whether answered by a person, an answering machine, a facsimile machine, or a modem

The board's line interface extracts or inserts telephony signaling information, which is processed by an onboard control processor. The DSPs only process the digitized voice data.

When recording speech, the DSP can use digitizing rates from 13 to 64 Kb/s as selected by the application for the best speech quality and most efficient storage. The digitizing rate is selected on a channel-by-channel basis and can be changed each time a record or play function is initiated. The DSP-processed speech is transmitted by the control processor to the host PC for disk storage. When replaying a stored file, the processor retrieves the voice information from the host PC and passes it to the DSP, which converts the file into digitized voice. The DSP uses the CT Bus circuitry to send the digitized voice responses to the caller via the E1XC line interface.

For CT Bus/SCbus configurations, the internal local buses operate at 2.048 Mb/s. An HDLC formats ISDN data. The HDLC receives ISDN signaling data from the E1XC interface and the CT612 ASIC and makes it available to the control processor. It also formats and sends outbound signaling data from the control processor to the network interface through the CT612 ASIC and E1XC transceiver chip.

The onboard control processor(s) controls all operations of the board via local buses and interprets and executes commands from the host PC. These processors

  • handle real-time events
  • manage data flow to the host PC to provide faster system response time
  • reduce PC host processing demands
  • process DTMF and telephony signaling before passing them to the application
  • free the DSPs to perform signal processing

Communications between a processor and the host PC is via the shared RAM, which acts as an input/output buffer, increasing the efficiency of disk file transfers. This RAM interfaces to the host PC via the PCI bus. All operations are interrupt-driven to meet the demands of real-time systems. When the system is initialized, SpringWare firmware is downloaded from the host PC to the onboard code/data RAM and DSP RAM to control all board operations. This firmware gives the board all of its intelligence and enables easy feature enhancement and upgrades.

The Traffic Controller ASIC is the Intel486 processor interface that handles all peripheral devices (CT612, HDLC, DSPs, E1XC) and host PC functions (Board Locator Technology, programmable interrrupts, and shared RAM). The Board Locator Technology circuit inside the Traffic Controller ASIC operates in conjunction with a rotary switch, eliminating the need to set confusing jumpers or DIP switches.

D/600JCT-2E1

The D/600JCT-2E1 board processes the digital on-hook/off-hook signaling information and digital voice signals from the telephone network. Digital E-1 signals enter the board via an E1XC line interface (see block diagram). The line interface supports CRC4 error detection (Cyclic Redundancy Check) and contains a software-switchable clock that can be set to any of the following settings:

  • Loop (clocking is slaved to the external network)
  • Independent (clocking is derived from an onboard oscillator)
  • Expansion (clocking is slaved to another bus clock master board)

Each of four CT612 functional modules on the D/600JCT-2E1 board transmits several lower speed data streams over a single high-speed channel. The bus configuration is set when the firmware is downloaded at system initialization. These chips incorporate matrix switching capabilities. Under control of an onboard control processor, a CT612 functional module can connect a call being processed or an available external resource to any of the CT Bus/SCbus time slots. This lets the application route calls to any added resources such as fax, TTS, or ASR.

A DSP resource receives digital voice data via a CT612 module. The DSP processes the data based on SpringWare firmware loaded in its high-speed RAM. Each DSP performs the following signal analysis and operations on this incoming data:

  • applies AGC to compensate for variations in the level of the incoming audio signal
  • applies an ADPCM, PCM, GSM, or G.726 algorithm to compress the digitized voice and save disk storage space
  • detects the presence of tones — DTMF, R2MF, or an application-defined, single- or dual-frequency tone
  • detects silence to determine whether the line is quiet and the caller is not responding

For outbound data, the DSP performs the following operations:

  • expands stored, compressed audio data for playback
  • adjusts the volume and rate of speed of playback upon application or user request
  • generates tones — DTMF, R2MF, or any application-defined, general-purpose tone

The dual processor combination associated with each line interface also performs the following outbound dialing and call progress monitoring functions:

  • transmits an off-hook signal to the telephone network
  • dials out (makes an outbound call)
  • monitors and reports call progress results: line busy or congested; operator intercept; ring, no answer; or if the call is answered, whether answered by a person, an answering machine, a facsimile machine, or a modem

The board's line interface extracts or inserts telephony signaling information, which is processed by an onboard control processor. The DSPs only process the digitized voice data.

When recording speech, the DSP can use digitizing rates from 13 to 64 Kb/s as selected by the application for the best speech quality and most efficient storage. The digitizing rate is selected on a channel-by-channel basis and can be changed each time a record or play function is initiated. The DSP-processed speech is transmitted by the control processor to the host PC for disk storage. When replaying a stored file, the processor retrieves the voice information from the host PC and passes it to the DSP, which converts the file into digitized voice. The DSP uses the CT Bus circuitry to send the digitized voice responses to the caller via the E1XC line interface.

For CT Bus/SCbus configurations, the internal local buses operate at 2.048 Mb/s. An HDLC formats ISDN data. The HDLC receives ISDN signaling data from the E1XC interface and the CT612 ASIC and makes it available to the control processor. It also formats and sends outbound signaling data from the control processor to the network interface through the CT612 ASIC and E1XC transceiver chip.

The onboard control processor(s) controls all operations of the board via local buses and interprets and executes commands from the host PC. These processors

  • Handle real-time events
  • Manage data flow to the host PC to provide faster system response time
  • Reduce PC host processing demands
  • Process DTMF and telephony signaling before passing them to the application
  • Free the DSPs to perform signal processing

Communications between a processor and the host PC is via the shared RAM, which acts as an input/output buffer, increasing the efficiency of disk file transfers. This RAM interfaces to the host PC via the PCI bus. All operations are interrupt-driven to meet the demands of real-time systems. When the system is initialized, SpringWare firmware is downloaded from the host PC to the onboard code/data RAM and DSP RAM to control all board operations. This firmware gives the board all of its intelligence and enables easy feature enhancement and upgrades.

The Traffic Controller ASIC is the Intel486 processor interface that handles all peripheral devices (CT612, HDLC, DSPs, E1XC) and host PC functions (Board Locator Technology, programmable interrrupts, and shared RAM). The Board Locator Technology circuit inside the Traffic Controller ASIC operates in conjunction with a rotary switch, eliminating the need to set confusing jumpers or DIP switches.

Technical Specifications**

D/480JCT-2T1

Number of ports 48
Max. boards/system 10. Number may be limited by application, system performance, and the number of CT Bus loads per board.
CT Bus loads per board Approximately 4
Max. CT Bus loads per system                                20 (See CT Bus specification for further details.)
Digital network interface Onboard DSX-1 interface
Resource sharing bus H.100 CT Bus
Control microprocessor Four Intel486™ GX @ 32.7 MHz, 0 wait state
Digital signal processors Six Motorola* DSP56303 @ 100 MHz, each with 256 K word private, 2 wait state SRAM
Host Interface
Bus compatibility PCI. Complies with PCISIG Bus Specification, Rev. 2.2.
Bus speed 33 MHz max.
Bus mode 32- to 16-bit conversion in target mode
Shared memory 4 x 64 KB page
I/O ports None
Support 3.3 V or 5 V signaling environment (universal connectivity)
Telephone Interface
Clock rate 1.544 Mb/s ±32 ppm
Level 3.0 V (nominal)
Pulse width 323.85 ns (nominal)
Line impedance 100 ohm ±10%
Other electrical characteristics Complies with AT&T* TR62411 and ANSI T1.403-1989
Framing SF (D3/D4), ESF for ISDN
Line coding AMI, AMI with B7 stuffing, B8ZS
Clock and data recovery Complies with AT&T TR62411 and Bellcore* TA-TSY-000170
Jitter tolerance Complies with AT&T TR62411 and ANSI T1.403-1989
Connectors RJ-48C
Telephony bus connector H.100-style 68-pin fine pitch card edge connector
Loopback Supports switch-selectable local analog loopback and software selectable local digital loopback
Power Requirements
+5 VDC 3.36 A typical; 4.03 A max.
+12 VDC 7.3 mA typical; 8.0 mA max.
-12 VDC Not required
Operating temperature 0°C to +50°C
Storage temperature -20°C to +70°C
Humidity 8% to 80% noncondensing
Form factor PCI long card, 12.3 in. long (without edge retainer) or 13.3 in. long (with edge retainer), 0.79 in. wide (total envelope), 3.87 in. high (excluding edge connector)
Safety and EMI Certifications
United States FCC part 68 ID#: EBZUSA-20078-XD-N
  UL: 1950 (E96804)
Canada IC: 885 5959 A
  UL: CSA 950 (E96804)
Estimated MTBF 162,000 hours per Bellcore Method I
Warranty Three years standard

D/600JCT-2E1

Number of ports 60
Max. boards/system 10. Number may be limited by application, system performance, and the number of CT Bus loads per board.
CT Bus loads per board Approximately 4
Max. CT Bus loads per system                                20 (See CT Bus specification for further details.)
Digital network interface Onboard E-1 interface
Resource sharing bus H.100 CT Bus
Control microprocessor Four Intel486 GX @ 32.7 MHz, 0 wait state
Digital signal processors Six Motorola DSP56303 @ 100 MHz, each with 256 K word private, 2 wait state SRAM
Host Interface
Bus compatibility PCI. Complies with PCISIG Bus Specification, Rev. 2.2.
Bus speed 33 MHz max.
Bus mode 32- to 16-bit conversion in target mode
Shared memory 4 x 64 KB page
I/O ports None
Support 3.3 V or 5 V signaling environment (universal connectivity)
Telephone Interface
Network clock rate 2.048 Mb/s ±50 ppm
Internal clock rate 2.048 Mb/s ±32 ppm
Level 2.37 V (nominal) for 75 Ohm or 3.0 V (nominal) for 120 Ohm lines
Pulse width 244 ns (nominal)
Line impedance 75 Ohm, unbalanced
120 Ohm, balanced
Other electrical characteristics Complies with CCITT Rec. G.703
Framing CCITT G.704-1988 with CRC4
Line coding HDB3
Clock and data recovery Complies with CCITT Rec. G.823-1988
Jitter tolerance Complies with CCITT Rec. G.823, G.737, G.739, G.742-1988
Connectors BNC for 75 Ohm
RJ-48C for 120 Ohm lines
Telephony bus connector H.100-style 68-pin fine pitch card edge connector
Loopback Supports switch-selectable local analog loopback and software selectable local digital loopback
Power Requirements
+5 VDC 3.7 A typical; 4.3 A max.
+12 VDC 7.4 mA typical; 8.8 mA max.
-12 VDC Not required
Operating temperature 0°C to +50°C
Storage temperature -20°C to +70°C
Humidity 8% to 80% noncondensing
Form factor PCI long card, 12.3 in. long (without edge retainer) or 13.3 in. long (with edge retainer), 0.79 in. wide (total envelope), 3.87 in. high (excluding edge connector)
Safety and EMI Certifications
United States FCC part 68 ID#: EBZUSA-20078-XD-N
  UL: 1950 (E96804)
Canada IC: 885 5959 A
  UL: CSA 950 (E96804)
Estimated MTBF 150,000 hours per Bellcore Method I
Warranty Three years standard

SpringWare Technical Specifications**

Facsimile
Fax compatibility ITU-T G3 compliant (T.4, T.30) and ETSI NET/30 compliant
Data rate 14,400 b/s (v.17) send; 9600 b/s receive
Variable speed selection Automatic step-down to 12,000 b/s, 9600 b/s, 7200 b/s, 4800 b/s, and lower
Transmit data modes MH (Modified Huffman), MR (Modified Read)
Receive data modes MH, MR
File data formats TIFF/F (Tagged Image File Format) for transmit/receive MH and MR
ASCII-to-fax conversion Host-PC-based conversion
  Direct transmission of text files
  All Windows fonts supported
  Page headers generated automatically
Error correction Detection, reporting, and correction of faulty scan lines
Image widths 215 mm (8.5 in.), 255 mm (10.0 in.), and 303 mm (11.9 in.)
Image scaling Automatic horizontal and vertical scaling between page sizes
Polling modes Normal and turnaround
Image resolution Normal (203 pels/in. x 98 lines/in.)
  Fine (203 pels/in. x 196 lines/in.)
Fill minimization Automatic fill bit insertion and stripping
Audio Signal
Receive range (T-1) -40 to +2.5 dBm0 nominal, configurable by parameter
  (E-1) -43 to +2.5 dBm0 nominal, configurable by parameter
Automatic gain control Application can enable/disable. Above -18 dBm0 (T-1) or -21 dBm0 (E-1) results in full-scale recording, configurable by parameter.
Silence detection -38 dBm0 nominal, software adjustable
Transmit level
(weighted average)
(T-1) -9 dBm0 nominal, configurable by parameter
  (E-1) -12.5 dBm0 nominal, configurable by parameter
Transmit volume
control
40 dB adjustment range, with application-definable increments and legal limit cap
Frequency Response
24 Kb/s 300 Hz to 2600 Hz ±3 dB
32 Kb/s 300 Hz to 3400 Hz ±3 dB
48 Kb/s 300 Hz to 2600 Hz ±3 dB
64 Kb/s 300 Hz to 3400 Hz ±3 dB
Audio Digitizing
13 Kb/s GSM @ 8 kHz sampling
24 Kb/s OKI ADPCM @ 6 kHz sampling
32 Kb/s OKI ADPCM @ 8 kHz sampling
32 Kb/s G.726 @ 8 kHz sampling
48 Kb/s A-law PCM @ 6 kHz sampling
64 Kb/s A-law PCM @ 8 kHz sampling
48 Kb/s µ-law PCM @ 6 kHz sampling
64 Kb/s 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 and 32 Kb/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 CCITT Q.23
Dynamic range -36 dBm0 to -3 dBm0 (T-1) or -39 dBm0 to 0 dBm0 (E-1) 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 (T-1) Meets Bellcore LSSGR Sec 6 and EIA 464 requirements
  (E-1) Meets appropriate CCITT specifications
Noise tolerance Meets Bellcore LSSGR Sec 6 and EIA 464 requirements for Gaussian, impulse, and power line noise tolerance
Cut-through (T-1) Local echo cancellation permits 100% detection with a >4.5 dB return loss line.
  (E-1) Digital trunks use separate transmit and receive paths to network. Performance dependent on far-end handset’s match to local analog loop.
Talk off Detects less than 20 digits while monitoring Bellcore 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
Max. number of tones Application-dependent
Frequency range Programmable within 300 Hz to 3500 Hz
Max. 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 (T-1) Programmable, default set at -36 dBm0 to -0 dBm0 (single tone), -3 dBm0 (dual tone)
  (E-1) Programmable, default set at -39 dBm0 to +0 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 (T-1) -43 dBm0 to -3 dBm0 per tone nominal, programmable
  (E-1) -40 dBm0 to +0 dBm0 per tone nominal, programmable
MF Signaling (T-1) R1
MF digits 0 to 9, KP, ST, ST1, ST2, ST3 per Bellcore LSSGR Sec 6, TR-NWT-000506 and CCITT Q.321
Transmit level Complies with Bellcore LSSGR Sec 6, TR-NWT-000506
Signaling mechanism Complies with Bellcore LSSGR Sec 6, TR-NWT-000506
Dynamic range for detection -25 dBm0 to -3 dBm0 per tone
Acceptable twist 6 dB
Acceptable freq. variation Less than ±1 Hz
MF Signaling (E-1) R2
MF digits All 15 forward and backward signal tones per CCITT Q.441
Transmit level -8 dBm0 per tone, nominal, per CCITT Q.454; programmable
Signaling mechanism Supports the R2 compelled signaling cycle and non-compelled pulse requirements per CCITT Q.457 and Q.442
Dynamic range for detection -35 dBm0 to -5 dBm0 per tone
Acceptable twist 6 dB
Acceptable freq. variation Less than ±1 Hz
Call Progress Analysis
Busy tone detection Default setting designed to detect 74 out of 76 unique busy/congestion tones used in 97 countries as specified by CCITT Rec. E., Suppl. #2. Default uses both frequency and cadence detection. Application can select frequency only for faster detection in specific environments.
Ring back detection Default setting designed to detect 83 out of 87 unique ring back tones used in 96 countries as specified by CCITT Rec. E., Suppl. #2. Uses both frequency and cadence detection.
Positive voice detection accuracy >99% based on tests on a database of real world calls in North America. Performance in other markets may vary.
Positive voice detection speed Detects voice in as little as 1/10th of a second
Positive answering machine detection accuracy 85% based on tests on a database of real world calls in North America. Performance in other markets may vary.
Fax/modem detection Preprogrammed
Intercept detection Detects entire sequence of the North American tri-tone. Other intercept tone sequences can be programmed.
Dial tone detection before dialing Application enable/disable; Supports up to three different user-definable dial tones; Programmable dial tone drop out debouncing
Tone Dialing
DTMF digits 0 to 9, *, #, A, B, C, D per Bellcore LSSGR Sec 6, TR-NWT-000506
Frequency variation Less than ±1 Hz
Rate 10 digits/s, configurable by parameter
Level -7.5 dBm0 per tone, nominal, configurable by parameter
Pulse Dialing
10 digits 0 to 9
Pulsing rate 10 pulses/s, nominal, configurable by parameter
Break ratio 60% nominal, configurable by parameter
Analog Display Services Interface (ADSI)
  FSK generation per Bellcore TR-NWT-000030.
  CAS tone generation and DTMF detection per Bellcore TR-NWT-001273.

**All specifications are subject to change without notice.
†Configurable to meet country-specific PTT requirements. Actual specification may vary from country to country for approved products.

Hardware System Requirements

D/480JCT-2T1 and D/600JCT-2E1

  • Intel386, Intel486, or Pentium microprocessor PCI bus or mixed PCI/ISA bus computer
  • Operating system hardware requirements vary according to the number of channels being used
  • System must comply with PCISIG Bus Specification Rev. 2.1 or later

Additional Components

D/480JCT-2T1 and D/600JCT-2E1

  • Multidrop CT Bus cables
  • CT Bus/SCbus adapter
  • SCbus terminator kits

*Other names and brands may be claimed as the property of others.
Intel, CT Media, Dialogic, Intel384, Intel486, and Pentium are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries.
Copyright © 2001, Intel Corporation.


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