ADTRAN HDSL HTU-C/DDM+ manual

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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of ADTRAN HDSL HTU-C/DDM+ alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of ADTRAN HDSL HTU-C/DDM+, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the ADTRAN service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of ADTRAN HDSL HTU-C/DDM+.

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Table of contents for the manual

  • Page 1

    HTU-C / DDM JOB A ID 61246003L2-22B 0003 HTU-C / DDM+ CLEI: T1L3B5BA_ _ HTU-CM 1246003L2 R S 2 3 2 ST A TUS ST A TUS LEDs ST A TUS ● RED Alarm on any HTU-C loops, HRE loops, DSX or DS1 interface ✷ FLASHING Signal Quality of 0 or N o Sync on at least one loop ● YELLO W Loopbacks active ✷ FLASHING In-band loopbacks armed ● GREEN Functioning[...]

  • Page 2

    INDICA TIONS AND PROBABLE CAUSES F ront Panel or Circuit P arameters Indicate Abnormal Operation Connect a terminal emulator via the RS-232 (DB-9) craft interface on faceplate. The terminal must be VT100 or compatible and set for 1.2 to 19.2 kbps, 8 data bits, no parity , 1 stop bit. T ap the space bar to establish communication with the unit. Sele[...]