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All Product List |
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Dual Channel DS1 Framer
DS1FR (GC7902)
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The DS1FR provides the features of automatically sophisticated super-framer (SF) and extended super-frame (ESF) framing synchronization, a gapped clock system interface option, and MVIP mode system interface. SF mimic susceptibility, SF loop-up/down detection are also addressed in this part. The DS1FR supports 100-pin LQFP package. |
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| 1. |
Framing Formats
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Complied with ANSI T1.403.CORE -1998 |
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Unframed, transparent framing mode |
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DS1 extended superframe (ESF) |
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DS1 superframe (SF): D4 |
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| 2. |
Line Codes
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Alternate Mark Inversion (AMI) |
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Binary Eight Zero Code Suppression (B8ZS) |
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Zero Code Suppression (ZCS) |
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Non-Return Zero (NRZ) option |
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Full-duplex HDLC controller with dual 64-byte FIFO |
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| 3. |
System Bus Interface
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Bus Clock Rate
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1.544 Mbit/s Transmission |
| b. |
2.048 Mbit/s MVIP |
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Bus Formats
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AT&T 1.544 Mbit/s PCM Connection Highway Interface |
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Multi-Vendor Integration Protocol |
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| 4. |
2 Frame transmit and receive slip buffers |
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Bit-oriented code insertion/detection |
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4/16 state signaling |
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SONET/SDH Add/Drop multiplexers |
| 2. |
DS1 multiplexers |
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DS1 and fractional DS1 CSUs |
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Inverse Multiplexers for ATM products |
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LAN routers with integrated DS1 interfaces |
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DS1 Internet access equipment |
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Multichannel DS1 test equipment, repeaters and switches |
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