C8200-C8201 Multi-Service Line Qualifier System (MSLQ)
Qualifies distribution cable pairs prior to the installation of xDSL services.
Ordering: 800-462-5532

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  • Common / Differential modes for pair identification
  • User-set timeout value
  • Field replacable batteries

  • Hardware » Central Office » C8200-C8201 Multi-Service Line Qualifier System (MSLQ)

    Two-part system designed to qualify distribution cable pairs prior to the installation of xDSL services.

    The two units, comprised of the Field Unit and the Central Office Unit, are controlled by low-current microprocessors and powered by disposable alkaline penlight cells.

    Field Unit:
    Contains a precision tone generator under the control of an internal microprocessor and is further controlledby the Central Office Unit when connected to a pair to be qualified.

    Central Office Unit:
    Contains an 8-bit microprocessor wiht a clock speed of4.9 MHz, EEPROM memory devices, filtering and measuring circuits to determine the insertion loss of any distribution pair. It is equipped with an internal modem.

    Technical Specifications

    C.O. Unit: 3 lb. 12 oz.
    Field Unit: 1 lb. 13 oz.


    0°F to +122°F


    C.O. Unit: 7.5" x 4.2" x 1.75"
    Field Unit: 7.2" x 3.75" x 1.1"

    * Specifications are subject to change without notice.

    Ordering Information
    Part Number


    CMC 8200MSLQ Central Office Unit
    CMC 8201MSLQ Field Unit
    CMC 8211RJ-11 - RJ-11 (cord from MSLQ C.O. Unit to RJ-11 jack in pouch)
    CMC 7941F2-Conductor Flat Cable (Cord to connect to POTS line for updating software)
    CMC 82133-Pair Test Cord Set
    To order the C8200-C8201 Multi-Service Line Qualifier System (MSLQ) and its accessories, contact the CMC Customer Service group by telephone at 800-462-5532.

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    CMC Communications Manufacturing Company
    2234 Colby Avenue, Los Angeles, California 90064
    530 Gordon Baker Rd., Willowdale, Ontario M2H 3B4 CANADA

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