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DS26522
Dual T1/E1/J1 Transceiver
Dual Transceiver Saves Board Space and Power
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The DS26522 transceiver is a two-channel framer and line interface unit (LIU) combination for T1, E1, and J1 applications. Each channel is independently configurable, supporting both long-haul and short-haul lines.
Key Features
- Complete T1, E1, or J1 Long-Haul/Short-Haul Transceiver (LIU plus Framer)
- Internal Software-Selectable Transmit- and Receive-Side Termination for 100Ω T1 Twisted Pair, 110Ω J1 Twisted Pair, 120Ω E1 Twisted Pair, and 75Ω E1 Coaxial Applications
- Crystal-Less Jitter Attenuator can be Selected for Transmit or Receive Path; Jitter Attenuator Meets ETS CTR 12/13, ITU-T G.736, G.742, G.823, and AT&T Pub 62411
- External Master Clock can be Multiple of 2.048MHz or 1.544MHz for T1/J1 or E1 Operation; This Clock is Internally Adapted for T1 or E1 Usage in the Host Mode
- Receive-Signal Level Indication from -2.5dB to -36dB in T1 Mode and -2.5dB to -44dB in E1 Mode in Approximate 2.5dB Increments
- Transmit Open- and Short-Circuit Detection
- LIU LOS in Accordance with G.775, ETS 300 233, and T1.231
- Transmit Synchronizer
- Flexible Signaling Extraction and Insertion Using Either the System Interface or Microprocessor Port
- Alarm Detection and Insertion
- T1 Framing Formats of D4, SLC-96, and ESF
- J1 Support
- E1 G.704 and CRC-4 Multiframe
- Controlled by 8-Bit Parallel Port Interface or Serial Peripheral Interface (SPI)
Applications/Uses
- Channel Banks
- Channel Service Units (CSUs)
- Data Service Units (DSUs)
- Muxes
- Routers
- Switches
- T1/E1 Test Equipment
Technical Docs
| Data Sheet | Dual T1/E1/J1 Transceiver | Nov 12, 2009 | |
| App Note | How to Transmit/Receive SSMs in the DS26521 and DS2155 | ||
| App Note | Handling Performance Report Messages in the DS2155 | ||
| App Note | How to Use the Bit-Error-Rate Tester (BERT) on the DS2652x STCs | ||
| App Note | DS26522 JTAG Scan Chain Mapping | ||
| App Note | Tech Brief 7: DS2152 and DS2154 8MHz System Clock Operation | ||
| App Note | T1/E1 and T3/E3 Transformer Selection Guide | ||
| App Note | Interfacing to the Fractional T1 and E1 | ||
| App Note | Legacy T1/E1 8MHz Backplane Operation |
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 | SIMULATION MODELS DS26522 BSDL Model | Download |
| SIMULATION MODELS DS26522 IBIS Model | Download |
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
Parameters
Key Features
- Complete T1, E1, or J1 Long-Haul/Short-Haul Transceiver (LIU plus Framer)
- Internal Software-Selectable Transmit- and Receive-Side Termination for 100Ω T1 Twisted Pair, 110Ω J1 Twisted Pair, 120Ω E1 Twisted Pair, and 75Ω E1 Coaxial Applications
- Crystal-Less Jitter Attenuator can be Selected for Transmit or Receive Path; Jitter Attenuator Meets ETS CTR 12/13, ITU-T G.736, G.742, G.823, and AT&T Pub 62411
- External Master Clock can be Multiple of 2.048MHz or 1.544MHz for T1/J1 or E1 Operation; This Clock is Internally Adapted for T1 or E1 Usage in the Host Mode
- Receive-Signal Level Indication from -2.5dB to -36dB in T1 Mode and -2.5dB to -44dB in E1 Mode in Approximate 2.5dB Increments
- Transmit Open- and Short-Circuit Detection
- LIU LOS in Accordance with G.775, ETS 300 233, and T1.231
- Transmit Synchronizer
- Flexible Signaling Extraction and Insertion Using Either the System Interface or Microprocessor Port
- Alarm Detection and Insertion
- T1 Framing Formats of D4, SLC-96, and ESF
- J1 Support
- E1 G.704 and CRC-4 Multiframe
- Controlled by 8-Bit Parallel Port Interface or Serial Peripheral Interface (SPI)
Applications/Uses
- Channel Banks
- Channel Service Units (CSUs)
- Data Service Units (DSUs)
- Muxes
- Routers
- Switches
- T1/E1 Test Equipment
Description
The DS26522 transceiver is a two-channel framer and line interface unit (LIU) combination for T1, E1, and J1 applications. Each channel is independently configurable, supporting both long-haul and short-haul lines.
Technical Docs
| Data Sheet | Dual T1/E1/J1 Transceiver | Nov 12, 2009 | |
| App Note | How to Transmit/Receive SSMs in the DS26521 and DS2155 | ||
| App Note | Handling Performance Report Messages in the DS2155 | ||
| App Note | How to Use the Bit-Error-Rate Tester (BERT) on the DS2652x STCs | ||
| App Note | DS26522 JTAG Scan Chain Mapping | ||
| App Note | Tech Brief 7: DS2152 and DS2154 8MHz System Clock Operation | ||
| App Note | T1/E1 and T3/E3 Transformer Selection Guide | ||
| App Note | Interfacing to the Fractional T1 and E1 | ||
| App Note | Legacy T1/E1 8MHz Backplane Operation |
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
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