15
Specification
ELECTRICAL
Loop limit
2 K
Ω
maximum at 48 Vdc
(nominal 20 mA minimum loop current)
DC resistance
Talk Mode
300
Ω
typical
Monitor impedance
>39k
Ω
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 K
Ω
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