Connecting To Telephone Networks Wired In Star Topologies - Fluke MicroScanner 2 User Manual

2
MicroScanner Cable Verifier
Users Manual
Connecting to Telephone Networks Wired in
Star Topologies
Telephone cables wired in a star topology (Figure 16) are
connected together at a bridge tap at the distribution
center. The bridge tap connects each wire to all other wires
of the same number.
The tester detects bridge taps and measures the distance to
the bridge tap. To measure the length of each cable
connected to the bridge tap, connect the wiremap adapter
or remote ID locator to the bridge tap and the tester to the
wall outlet.
24
The tester cannot measure length past the bridge tap
because reflections from the bridge tap connections
interfere with measurements.
If you connect the tester to the bridge tap, the tester
measures the length only to the bridge tap, which is only
the patch cord length.

Do not use multiple far end adapters in star or
bus topologies. Doing so causes incorrect
wiremap results.
Caution