Simple tester determines if there is damaging voltage on RJ-11 and RJ-45 lines. Tests 1-, 2-, 3- and 4-line jacks. 4 Tri-color LEDS indicate Current, Polarity and Ringing/ACV. If any LED lights in USOC or 568A/B switch positions, voltage is present.

MFR PART #  9615
PART #  796218
Minimum 1 Each
Call for Availability


The Triplett Line-Bug 4 is a simple tester to determine if there is damaging telephone line current on RJ-11 and RJ-45 lines. Some LAN lines have telephone current on previously unused pairs. Pre-testing LAN lines with the Line-Bug 4 before testing wit h a LAN Tester may prevent damage to it. Checks RJ45 connections wired for 568A/B or USOC pinouts. Tests 1-, 2-, 3- and 4-line jacks. 4 Tri-color LEDS indicate Current, Polarity and Ringing/AC Volts. Self powered by line voltage. If any LED lights in U SOC or 568A/B switch positions, voltage is present. 1 year warranty.


  • Protect your expensive LAN tester - checks LAN Lines (RJ-45) wired to 568 A/B and USOC standards for damaging telephone line current^^Has both RJ-11 and RJ-45 style plugs for testing 1-, 2-, 3-, and 4-line jacks^^4 Tri-color LEDS indicate Current, Pola rity and Ringing/AC Volts^^1 year warranty


UNSPSC Code 41113700

Spec Sheet

Spec Sheet

Data Sheets


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