Guardian Telecom Inc.
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| Installation and Operation | |
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| Model | |
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| Engineering Specifications | ||
| *ELECTRICAL PERFORMANCE |
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| AUDIBLE RANGE FREQUENCY RESPONSE | 300 – 3400 HZ |
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| DIALING METHOD | DTMF OR 33/66 PULSE AT 10 PPS |
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| SEND LOUDNESS RATING (SLR) dB | SHORT 8 dB +/- 4 dB |
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| RECEIVE LOUDNESS RATING (RLR) dB | SHORT |
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| SIDE TONE MASKING RATING (STMR) | >11 dB |
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| RINGER OUTPUT | 75 dB MAXIMUM |
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| RINGER EQUIVALENCE | 0.5 |
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| SET IMPEDANCE | 600 OHMS NOMINAL |
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| MAXIMUM LOOP | 15,000 FT (4,600 M) OF 22 AWG COPPER |
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| ELECTRICAL |
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| RINGER SENSITIVITY | 40 – 100 V, 16 – 25 HZ |
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| LINE VOLTAGE | 24 – 56 VDC |
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| LOOP CURRENT | 20 - 120 mA |
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| CONNECTION METHOD | SURGE ARRESTOR / TERMINAL BLOCK |
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| FUSE | ¼ AMP 250 VOLT 3AG FAST BLOW |
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| ENVIRONMENTAL |
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| WEATHERPROOF | ENCLOSURE NEMA 3R |
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| TEMPERATURE |
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| HUMIDITY | 0 TO 95% RH |
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| DUSTPROOF | FULLY GASKETED FACEPLATE & WEATHERPROOF KEYPAD |
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| CORROSION RESISTANT |
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| MECHANICAL |
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| HOOK SWITCH (CRADLE SWITCH) LIFE | >1 000 000 OPERATIONS |
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| BODY CONSTRUCTION | GE VALOX 357® ENGINEERING POLYMER |
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| DIMENSIONS | 12 X 9.6 X 3.9 INCHES (305 X 245 X 99 MM) |
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| NET WEIGHT | 6.5 LBS (2.95 KG) |
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| HANDSET MATERIAL | HIGH IMPACT ABS |
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| MICROPHONE | NOISE REDUCING ELECTRET |
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| OPTIONAL MICROPHONE | NOISE CANCELING DYNAMIC |
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| RECEIVER | HEARING AID COMPATIBLE (HAC) |
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| STANDARD MOUNTING | VERTICAL WALL |
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| WIRING ACCESS | 7/8” DIAM. OPENING FOR OWNER SUPPLIED FITTING |
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