990DSL
Users Guide
6-6
Table 6-2. TDR Auto-Test Setup Parameters
Parameter Setting (default in bold)
Pulse Width (Range) Auto, 20 ns (500 ft), 100 ns (2000 ft),
500 ns (4000 ft), 1000 ns (6000 ft), 2500 ns
(12,000 ft), 5000 ns (>12,000 ft)
Cable Gauge 19, 22, 24, 26, 28 AWG
Cable Type Jelly Filled, Air Core, Pulp, JKT, 5 Pr. Bur. Drop,
2 Pr. Bur. Drops, 1 Pr. Aer. Drop, 2 Pr. Universal,
Custom
VOP 0.589 (Range = 0.300 to 0.999)
Filter OFF, ON
Average OFF, ON
Fault Detect Sensitivity 95.0 (Range = 1.0 to 100.0 %)
Starting and Stopping a TDR Auto-Test
To run a TDR Auto-test, display the Main menu. Select TDR Auto-Test, then
press K.
The Auto-Test begins, running the following tests in the order listed:
• Voltage (DC & AC)
• Load Coils
• Opens
• Shorts & Grounds (if a resistive fault detected in the Opens test)
• TDR operation (using the selected Pulsewidth)
To stop the Auto-Test at any time, press K.
To Next Page
Loading...
