Black Box Multi Quick Check RJ-11 Manual page 7

The Multi Quick Check tester verifies the continuity of
unshielded twisted pair (UTP) cabling following EIA-
568 wiring standards (1,2; 3,6; 4,5; 7,8). It can check
one, two, or three pairs of cabling as long as the same
pairs are used (for example, Ethernet 10BASE-T, Token
Ring, TP-PMD). See Figures 1 through 7 for modular
jack pin and pair assignments. The tester will detect
crossed pairs, open pairs, and shorted pairs.
The tester will NOT properly identify near-end crosstalk
(NEXT) or full split pairs.
To keep your tester working properly for years to come,
please keep this information in mind during use.
1. The tester is intended for testing passive cabling only.
Connecting this tester to lines where voltage is present may
damage the unit.
2. We recommend using short patch cords or socket savers
during testing, since this will limit the wear on the tester's
connectors.
Introduction
NOTE
CAUTION
INTRODUCTION
5