T3 测试仪 TLA300

详情描述：

产品名称：T3  测试仪 TLA300
型号：  TLA300 
品牌：Innovation

描述：The Tel Scope TLA300 is the first true 21st century telecommunication 
line analyzer, a true field instrument that 
规格：Product ：
8.25x2.5x2.0 without belt clip and cord  

Product Weight：
1lbs. 2oz.

Interface：
Attached cord  

Languages：
English,  and French

Ringer Equivalence： 
In BELL mode: 0.0 (no ringer load)

Pulse Dialing：
Pulse rate: 10 pps ? 10%;
Make/break ratio: 60% to 40% ?2%; USA
Interdigit interval: 820 ms;
Resistance during break: 120K Ohm minimum