ST230F Telephone line tester

ST230F Portable Lineman set Telephone line tester(butt sets)

Brief Introduction

ST230F Telephone Line Tester is one portable and intelligent line fault tester, which adopts advanced technologies such as intelligent CPU, IC & surface mounted technology (SMT) technology. It integrates various kinds of functions such as telephone, line performance test and safety test to be the one.

Main functions and key features

Telephone line fault checking

Monitor, ISDN/ADSL identification

Hand free function(two speak ways, loudspeaker)

Calling number displaying

One Key override lockout function Data lockout override function

Tone/pulse transfer function

High DC voltage indication 

High AC voltage alarm

Low voltage self-checking, automatic power off and energy-save design

Memory key(10 groups of 18 digits)

Telephone functions(Dialing, Receiving, Redial)

Caller telephone number display

Telephone number storage and dial function

Mute function

Tester test (AC V & DC V test, Insulation test, Open line test, Earth insulation)

Call user & talk

Check wire pairs

Technical Specifications