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3.2
3.3 ENVIRONMENTAL LIMITS
OPERATING TEMPERATURE 32–104 °F/1–40 °C
STORAGE TEMPERATURE -13–158 °F/-10.5–70 °C
HUMIDITY 10%-90% NON-CONDENSING
3.4 CABLE REQUIREMENTS
EQUIPMENT CABLE AWG MAX FEET MAX METERS
DIGITAL KEYSETS 1 PR. TWISTED 24 1300 400
ADD-ON MODULES 1 PR. TWISTED 24 1300 400
SINGLE LINE STATION 1 PR. TWISTED 24 3000 1 KM
DOOR PHONE 2 PR. TWISTED 24 330* 100
*This is the maximum length of the cable between the door phone and the DPIM. The
DPIM can be installed up to 900 cable feet from the KSU.
3.5 SYSTEM TONES
TONE FREQUENCIES CADENCE
DIAL TONE 350 + 440 Hz CONTINUOUS
RING BACK TONE 440 + 480 Hz 1 sec on + 3 sec off
BUSY TONE 480 + 620 Hz 0.5 sec on + 0.5 sec off
DND/NO MORE CALLS 480 + 620 Hz 0.25 sec on + 0.25 sec off
ERROR TONE 480 + 620 Hz 0.25 sec of each tone
CONFIRMATION TONE 350 + 440 Hz Three bursts of tone
0.1 sec on + 0.1 sec off
TRANSFER/CONF 350 + 440 Hz 0.05 sec of tone 1/0.05 sec of tone 2
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