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15
Specification
ELECTRICAL
Loop limit
2 KΩ maximum at 48 Vdc
(nominal 20 mA minimum loop current)
DC resistance
Talk Mode 300Ω typical
Monitor impedance >39kΩ nominal at 1 KHz
Rotary dial output
Pulsing rate 10pps+0.8pps
Percent break 60/40%±2%
Inter digit interval 1000 ms typical
Leakage during Break >130 KΩ
DTMF output
Tone frequency error ±1.5% maximum
Tone level -8±2dBm combined (typical)
High versus low tone
4 dB maximum
Memory dialing
Memory capacity 12 memories
Digit capacity 16 digits per memory
PBX pause duration 1~3.6 seconds
Power source 4pcs 1.5V AAA batteries (not included)
PHYSICAL（Hook included）
Measurement 218.5 ×69.5 × 49mm (8.6” × 2.7” × 1.9”)
Weight 208g typical
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