Features: Complete DS1/ISDN-PRI transceiverfunctionality Line interface can handle both long- andshort-haul trunks 32-bit or 128-bit jitter attenuator Generates DSX-1 and CSU line build outs Frames to D4, ESF, and SLC-96R formats Dual onboard two-frame elastic store slipbuffers that connect to ba...
DS2151: Features: Complete DS1/ISDN-PRI transceiverfunctionality Line interface can handle both long- andshort-haul trunks 32-bit or 128-bit jitter attenuator Generates DSX-1 and CSU line build outs Frames...
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The DS2151Q T1 Single-Chip Transceiver (SCT) contains all of the necessary functions for connectionto T1 lines whether they be DS-1 long haul or DSX-1 short haul. The clock recovery circuitryautomatically adjusts to T1 lines from 0 feet to over 6000 feet in length. The device can generate bothDSX-1 line build outs as well as CSU build outs of -7.5 dB, -15 dB, and -22.5 dB.
The DS2151Q onboard jitterattenuator (selectable to either 32 bits or 128 bits) can be placed in either the transmit or receive datapaths. The framer locates the frame and multiframe boundaries and monitors the data stream for alarms.It is also used for extracting and inserting Robbed-Bit signaling data and FDL data. The device DS2151Q contains a set of 64 8-bit internal registers which the user can access to control the operation of the unit. Quickaccess via the parallel control port allows a single micro to handle many T1 lines. The device fully meetsall of the latest T1 specifications including ANSI T1.403-199X, AT&T TR 62411 (12-90), and ITUG.703, G.704, G.706, G.823, and I.431.