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Key Features

  • For 2 to 12 Line LTC Filters
  • Signal, Sensor & Voice Communication
  • Data Communication
  • Control Line
  • Download PDF Datasheet
  • ETS-Lindgren's LTC series of telephone line data filters are ideal for applications including communication lines entering or leaving shielded rooms, computer rooms, communication terminal rooms, and Sensitive Compartmental Information Facilities (SCIF).

    LTC-X640 filters have multiple circuits to handle 2, 4, 6, 8, 10 or 12 wires, and are designed for stand-alone, individual mounting. These filters may be supplied with an optional threaded conduit pipe for penetration of a shielded enclosure.

    Specifications
    View the Telephone Line Data Filters technical specifications below

    Physical Specifications

    Model
    Number of Lines
    Width
    LTC-2640-C10K
    2
    7.62 cm (3.00 in)
    LTC-4640-C10K
    4
    5.24 cm (6.00 in)
    LTC-6640-C10K
    6
    30.48 cm (12.00 in)
    LTC-8640-C10K
    8
    30.48 cm (12.00 in)
    LTC-10640-C10K
    10
    45.72 cm (18.00 in)
    LTC-12640-C10K
    12
    45.72 cm (18.00 in)
    LTC-2640-D56K
    2
    7.62 cm (3.00 in)
    LTC-4640-D56K
    4
    5.24 cm (6.00 in)
    LTC-6640-D56K
    6
    30.48 cm (12.00 in)
    LTC-8640-D56K
    8
    30.48 cm (12.00 in)
    LTC-10640-D56K
    10
    45.72 cm (18.00 in)
    LTC-12640-D56K
    12
    45.72 cm (18.00 in)
    LTC-2640-E128K
    2
    .62 cm (3.00 in)
    LTC-4640-E128K
    4
    15.24 cm (6.00 in)
    LTC-6640-E128K
    6
    30.48 cm (12.00 in)
    LTC-8640-E128K
    8
    30.48 cm (12.00 in)
    LTC-10640-E128K
    10
    45.72 cm (18.00 in)
    LTC-12640-E128K
    12
    45.72 cm (18.00 in)
    PLEASE NOTE:  For Installation on shield, filters can be ordered with penetration kit. Add "/PEN" to model numbers.


    Electrical Specifications



    Model
    Passband Impedance
    Passband Loss
    Stopband Insertion Loss
    Maximum Current
    Maximum Voltage
    LTC-X640-C10K
    600 (L-L), 300 (L-G)
    0.5 dB Maximum; 0 to 40 kHz
    100 dB Minimum @ 330 KHz to 18 GHz
    0.5
    125
    LTC-X640-D56K
    600 (L-L), 300 (L-G)
    1.0 dB Maximum; 0 to 140 kHz
    100 dB Minimum @ 1 MHz to 18 GHz
    0.5
    125
    LTC-X640-E128K
    150 (L-L), 75 (L-G)
    1.0 dB Maximum; 0 to 300 kHz
    100 dB Minimum @ 1.5 MHz to 18 GHz
    0.5
    125
    PLEASE NOTE: For Installation on shield, filters can be ordered with penetration kit. Add "/PEN" to model numbers.


    Charts
    View the Telephone Line Data Filters charts below