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Save money on dedicated lines for emergency phones.

Price: $108.05

Sold As is with no warranty.

Product Features

  • Great for emergency phones linked to a security desk.
  • Details

  • Is placed between both telecommunication devices. The device that goes "off hook" first receives two seconds of precise dial tone. The second device then begins ringing until answered.
  • Also suitable for prison use. Prisoners can converse with visitors phone-to-phone without the need for a dedicated phone line. Plus, visitors remain safe.
  • Provides CPC breaks after hangup on either device.
  • Tech Specs

    CPC Break Time 2 seconds or 150 msec (selectable)
    Dial Tone Level -20 dBm with 600-ohm load
    Loop Length (Maximum) 2.6 mi. (4.1 km) over 24 AWG twisted pair
    Operating Environment Temperature: 32 to 90° F (0 to 32° C);
    Humidity: 5 to 95% noncondensing
    Ringer Output (Maximum) 2.0 REN load
    Speed (Maximum) 28.8 kbps
    Talk Battery 32 VDC
    Connectors (2) RJ-11
    Power 120 VAC, 60 Hz, external
    Size 1.4"H x 2.8"W x 4.8"D (3.6 x 7.1 x 12.2 cm)
    Weight 1.6 lb. (0.7 kg)
    Warranty 90 days

    NOTE: Technical specification weight is the unit weight. It is not the packaged shipping weight. For shipping weight, please contact Black Box customer service at 877-877-2269.


    Double Diamond Warranty Sold As is with no warranty. Diamond

    Double Diamond™ Warranty (Standard)

    Take the risk out of equipment purchases with the Double Diamond™ Warranty from Black Box Network Services.

    The Double Diamond Warranty is our warranty that protects your Black Box® brand products* from accidental damage, including drops, water, and power surges.

    During the warranty period, Black Box Network Services will repair or replace your damaged equipment within one week of receipt at NO CHARGE!*

    Plus, get an Extended Double Diamond Warranty.

    You can also extend your warranty or protect a previously purchased Black Box® brand product** for an additional year—for only 10% of the purchase price! Or, extend your coverage for a full three years for only 20% of the purchase price!

    Ordering an extended warranty is easy: When viewing a product in your shopping cart, just select the one or three years of additional coverage in the dropdown menu under “Warranty Options.” For details, contact Customer Service at 724-746-5500.

    * Warranty subject to certain exclusions and limitations ** Certain products may not be eligible.

    What’s more, we also have a 45-day return policy. Simply call Customer Service for a Return Authorization (RA) number, return your product in new condition and in the original package, and receive a full refund.