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The Intel Dialogic D/240JCT-T1 combined media 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/240JCT-T1 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.
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 the CT612 functional modules on the D/240JCT-T1 board transmits several lower speed data streams over a single high-speed channel.
32°F (0°C) to 122°F (50°C) Operating / -4°F (-20°C) to 158°F (70°C) Storage
Manufacturer Part Number
Manufacturer Website Address
Dialogic D/240JCT-T1 Combined Media Board
Data Transfer Rate
1.54 Mbps T1
Telephony bus connector H.100-style 68-pin fine pitch card edge connector Process DTMF and telephony signaling before passing them to the application PCI Complies with PCISIG Bus Specification, Rev. 2.2 Bus mode: 32- to 16-bit conversion in target mode CT Bus loads per board: 1.5 Maximum CT Bus loads per system: 20 Shared memory: 2 × 64 KB page 3.3 V or 5 V signaling environment (universal connectivity) MTBF: 150,000 hour(s) Supports G.726 bit exact and GSM coders Data rate (FAX): 14,400 b/s (v.17), send 9600 b/s receive Transmit data modes Modified Huffman (MH) Modified Read (MR) Receive data modes MH, MR Current: (2.0 A typical; 2.2 A maximum @ 5 VDC) and (6 mA typical; 6.6 mA maximum @12 VDC) Voice Communication Support Applications: Messaging and enhanced services Wireless and fixed-line short message service (SMS) Color ring back tone (CRBT) Contact center and e-Business PC-PBX Switching and call completion Prepaid/debit card Gateway switch
Linux Windows 2003 Windows XP Windows NT Windows 2000
Certifications & Standards
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 US:EBZUSA-20078-XD-N Safety and EMC: FCC Part 15 Class A UL 1950 File E96804
PCI Long Form Factor
3.3 V DC or 5 V DC
HDLC / SNMP
SNMP Software development kits (SDKs)
Robbed-bit (CAS) / ISDN PRI (Digital)
SF / ESF
2 x Intel 486 GX
AMI - / AMI - with B7 stuffing / B8ZS -
Digital Signal Processing
3 x Motorola DSP56303 100 MHz -
CT Bus - / H.100 -
Number of Boards Support
3 Year Limited
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