Product Details
*The JTAG function on the DS21455/DS21458 is a single controller for all four transceivers, unlike the DS21Q55, which has a JTAG controller-per-transceiver architecture.
Key Features
- Complete T1 (DS1)/ISDN-PRI/J1 Transceiver Functionality
- Complete E1 (CEPT) PCM-30/ISDN-PRI Transceiver Functionality
- Short- and Long-Haul Line Interface for Clock/Data Recovery and Waveshaping
- CMI Coder/Decoder
- Crystal-Less Jitter Attenuator
- Fully Independent Transmit and Receive Functionality
- Dual HDLC Controllers
- On-Chip Programmable BERT Generator and Detector
- Internal Software-Selectable Receive- and Transmit-Side Termination Resistors for 75Ω/100Ω/120Ω T1 and E1 Interfaces
- Dual Two-Frame Elastic-Store Slip Buffers that can Connect to Asynchronous Backplanes Up to 16.384MHz
- 16.384MHz, 8.192MHz, 4.096MHz, or 2.048MHz Clock Output Synthesized to Recovered Network Clock
- Programmable Output Clocks for Fractional T1, E1, H0, and H12 Applications
- Interleaving PCM Bus Operation
- 8-Bit Parallel Control Port, Multiplexed or Nonmultiplexed, Intel or Motorola
- IEEE 1149.1 JTAG-Boundary Scan
- 3.3V Supply with 5V Tolerant Inputs and Outputs
- DS21455 Directly Replaces DS21Q55
- Signaling System 7 (SS7) Support
- RAI-CI, AIS-CI Support
Applications/Uses
- Channel Banks
- Channel Service Units (CSUs)
- Data Service Units (DSUs)
- Muxes
- Routers
- Switches
- T1/E1 Test Equipment
Technical Docs
Data Sheet | Quad T1/E1/J1 Transceivers | May 16, 2007 | |
App Note | DS2155 and DS26521 Software Comparison | ||
App Note | DS21458 Quad and DS26528 Octal Transceiver Software Comparison | ||
App Note | JJ-20.11-Compatible Interface for the DS2155 and DS21455 SCTs | ||
App Note | T1/E1 Loopback Operation for Maxim T1/E1/J1 Transceivers | ||
App Note | Elastic Store Operation | ||
App Note | DS2155 and DS26401 Software Comparison | ||
App Note | DS2155 Monitor Mode Design | ||
App Note | DS31256 and T1/E1 Interface | ||
App Note | T1/E1 and T3/E3 Transformer Selection Guide | ||
App Note | T1/E1 Network Interface Design | ||
App Note | Interfacing to the Fractional T1 and E1 |
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Support & Training
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Parameters
Key Features
- Complete T1 (DS1)/ISDN-PRI/J1 Transceiver Functionality
- Complete E1 (CEPT) PCM-30/ISDN-PRI Transceiver Functionality
- Short- and Long-Haul Line Interface for Clock/Data Recovery and Waveshaping
- CMI Coder/Decoder
- Crystal-Less Jitter Attenuator
- Fully Independent Transmit and Receive Functionality
- Dual HDLC Controllers
- On-Chip Programmable BERT Generator and Detector
- Internal Software-Selectable Receive- and Transmit-Side Termination Resistors for 75Ω/100Ω/120Ω T1 and E1 Interfaces
- Dual Two-Frame Elastic-Store Slip Buffers that can Connect to Asynchronous Backplanes Up to 16.384MHz
- 16.384MHz, 8.192MHz, 4.096MHz, or 2.048MHz Clock Output Synthesized to Recovered Network Clock
- Programmable Output Clocks for Fractional T1, E1, H0, and H12 Applications
- Interleaving PCM Bus Operation
- 8-Bit Parallel Control Port, Multiplexed or Nonmultiplexed, Intel or Motorola
- IEEE 1149.1 JTAG-Boundary Scan
- 3.3V Supply with 5V Tolerant Inputs and Outputs
- DS21455 Directly Replaces DS21Q55
- Signaling System 7 (SS7) Support
- RAI-CI, AIS-CI Support
Applications/Uses
- Channel Banks
- Channel Service Units (CSUs)
- Data Service Units (DSUs)
- Muxes
- Routers
- Switches
- T1/E1 Test Equipment
Description
*The JTAG function on the DS21455/DS21458 is a single controller for all four transceivers, unlike the DS21Q55, which has a JTAG controller-per-transceiver architecture.
Technical Docs
Data Sheet | Quad T1/E1/J1 Transceivers | May 16, 2007 | |
App Note | DS2155 and DS26521 Software Comparison | ||
App Note | DS21458 Quad and DS26528 Octal Transceiver Software Comparison | ||
App Note | JJ-20.11-Compatible Interface for the DS2155 and DS21455 SCTs | ||
App Note | T1/E1 Loopback Operation for Maxim T1/E1/J1 Transceivers | ||
App Note | Elastic Store Operation | ||
App Note | DS2155 and DS26401 Software Comparison | ||
App Note | DS2155 Monitor Mode Design | ||
App Note | DS31256 and T1/E1 Interface | ||
App Note | T1/E1 and T3/E3 Transformer Selection Guide | ||
App Note | T1/E1 Network Interface Design | ||
App Note | Interfacing to the Fractional T1 and E1 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal