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DS2152L датащи(PDF) 5 Page - Dallas Semiconductor |
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DS2152L датащи(HTML) 5 Page - Dallas Semiconductor |
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5 / 94 page ![]() DS2152 5 of 93 TTIP and TRING pins via a coupling transformer. The line driver can handle both long (CSU) and short haul (DSX-1) lines. Reader’s Note This data sheet assumes a particular nomenclature of the T1 operating environment. In each 125 us frame, there are 24 8-bit channels plus a framing bit. It is assumed that the framing bit is sent first followed by channel 1. Each channel is made up of 8 bits which are numbered 1 to 8. Bit number 1 is the MSB and is transmitted first. Bit number 8 is the LSB and is transmitted last. Throughout this data sheet, the following abbreviations will be used: D4 Superframe (12 frames per multiframe) Multiframe Structure SLC-96 Subscriber Loop Carrier - 96 Channels (SLC-96 is an AT&T registered trademark) ESF Extended Superframe (24 frames per multiframe) Multiframe Structure B8ZS Bipolar with 8 0 Subsitution CRC Cyclical Redundancy Check Ft Terminal Framing Pattern in D4 Fs Signaling Framing Pattern in D4 FPS Framing Pattern in ESF MF Multiframe BOC Bit Oriented Code HDLC High Level Data Link Control FDL Facility Data Link |
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