Proskit MT-8006B 数据潜水员电话对接套装电缆测试仪

Loop limit: 2KΩ 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 Difference: 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
Weight    : 208g typical

Manual MT-8006B