DS26524

www.DataSheet4U.com DS26524 Quad T1/E1/J1 Transceiver www.maxim-ic.com GENERAL DESCRIPTION The DS26524 is a single-chip 4-port 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. FEATURES Four Complete T1, E1, or J1 Long-Haul/ShortHaul Transceivers (LIU plus Framer) Independent T1, E1, or J1 Selections for Each Transceiver 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 APPLICATIONS Routers Channel Service Units (CSUs) Data Service Units (DSUs) Muxes Switches Channel Banks T1/E1 Test Equipment TYPICAL OPERATING CIRCUIT DS26524 T1/E1/J1 NETWORK T1/J1/E1 Transceiver x4 BACKPLANE Transmit Synchronizer Flexible Signaling Extraction and Insertion Using Either the System Interface or Microprocess...