Guardian telecom inc. MTF-30n telephone, Weatherproof sets with locking encloser - $750 - (Derby Line, VT)

MFT- 30N Guardian telecom inc. Weatherproof sets with locking encloserTelephone Panel Insert with Volume Control and Curly Handset CordReplaces inserts in Northern Telecom Weatherproof telephone sets with locking enclosuresNotched edgeMetal keypad for extended lifeCurly handset cordMagnetic reed hook switch to reduce parts subject to wearEncapsulated circuitry impervious to water and dustSimple field installationWaterproof connections & stainless steel fittings for longer lifeEngineering Specifications Electrical Performance AUDIBLE FREQUENCY RANGE 300 – 3400 HZ DIALING METHOD DTMF OR 40/60 PULSE AT 10 PPS TRANSMIT OBJECTIVE LOUDNESS RATING (TOLR) -38 + /- 3 dB RECEIVER VOLUME ADJUSTMENT 13.5 dB IN 2.7 dB STEPS, 3 STEPS UP AND 2 STEPS DOWN RECEIVE OBJECTIVE LOUDNESS RATING (ROLR) -AT NOMINAL VOLUME LEVEL 50.0 +/- 3 dB -AT MAXIMUM VOLUME LEVEL 42.0 +/- 3 dB -AT MINIMUM VOLUME LEVEL 55.5 +/- 3 dB SIDE TONE OBJECTIVE RATING (SOLR) -AT NOMINAL VOLUME LEVEL 11 +/- 4 dB -AT MAXIMUM VOLUME LEVEL 7 +/- 4 dB -AT MINIMUM VOLUME LEVEL 14 +/- 4 dB RINGER OUTPUT 65 dB MAX. FCC RINGER EQUIVALENCE (REN) 0.8 B SET IMPEDANCE 600 OHMS NOMINAL MAXIMUM LOOP 15,000 FEET (4,500M) OF 22 AWG COPPER Electrical Requirements RINGER SENSITIVITY 40 – 100 V, 16 – 25 HZ LINE VOLTAGE 24 – 56 VDC LOOP CURRENT 20 – 120 mA CONNECTION METHOD SURGE ARRESTOR OR SPLICE MICROPHONE NOISE REDUCING ELECTRET Environmental TEMPERATURE -40° TO +50° C (-40° TO +122° F)HUMIDITY 0 – 95% RH NON CONDENSING Mechanical FACEPLATE STEEL, ZINC DICHROMATE PLATED AND POWDER COATED NET WEIGHT 4 LBS./1.8 KG HANDSET CORD ALCRYN COLD TEMPERATURE HANDSET MATERIAL HIGH IMPACT ABS HARDWARE MATERIAL STAINLESS STEEL

Posted in Derby Line, VT, Business for Sale
From ebay.com - 1 month ago