Technical specification
Operating temperature | 32°F — 122°F |
| 0°C — 50°C |
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Power adapter input | AC120V 60Hz |
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Power adapter output | DC12V 500mA |
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Backup battery | Alkaline 9V, size 1604A |
(purchased separately) |
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Headset jack | 2.5mm, 32 - 150ohm |
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Wiring limitation | No more than 600 feet |
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REN | 0.3B |
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System signal carrier | 1.7 MHz |
frequency |
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|
80
