Fluke TS 100 PRO User Manual page 26

TS100 PRO Cable Fault Finder
Users Guide
Operating 9,843 ft max (3,000 m max)
Altitude
Weight 1 lb (454 grams)
Dimensions 7.4 in x 2.7 in x 1.4 in (18.8 cm x 6.9 cm x 3.6 cm)
Safety Meets 300 V CAT none, Pollution Degree 2
EMC Meets IEC 61326-1: Portable. Meets FCC CFR Title 47, Part 15, Subpart B
Patents 6160405, 6285195, 6323654, and 6509740.
On certain types of cables with bridge taps, TS100 PRO reports bridge tap location and bridge tap length correctly,
but reports cable length as -
determine length due to impacts of the tap on the TDR signal, such as excessive loss.
To detect bridge taps on 24 wire gauge cabling, bridge tap length must be at least 10% of distance to bridge tap.
For example, if distance to bridge tap is 3,000 feet, then the minimum bridge tap must be at least 300 feet to be
detected. Design is optimized for 24 wire gauge cabling. On larger wire gauges such as 19 awg, performance will
increase and TS100 PRO will be able to find shorter-length bridge taps. On smaller wire gauges such as 26 awg,
performance will decrease and bridge tap length should be greater than 10% of distance to bridge tap to be
detected. Bridge tap detection may also vary based all specific cable characteristics.
When testing into a DSLAM or certain CPE (Customer Premise Equipment), the TS100 PRO may add 1,000 feet -
3,000 feet to the actual cable length. To maximize accuracy, it is recommended the user disconnect CPE prior to
testing.
When testing at a crossbox or terminal and using crossbox test leads with a heavy gauge, TS100 PRO may identify
the end of the heavy gauge as a BT due to the significant cable gauge change – for example, a BT at 7 feet (or 2
meters). To skip this event, turn on the BT Filter Test Mode by pressing the DOWN arrow button twice and the unit
will display the end of cable.
When testing cables in the field, remember that what the TS100 PRO reports as a bridge tap may be another
event with a similar reflectance pattern. If you are unsure, check these types of events against cable plans or
visually inspect the cable.
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User Application Notes:
(cable too long). In certain circumstances, TS100 PRO may not always be able to
Err