Maintenance and Specifications
Specifications
8
8-9
Length Test
Table 8-4 shows the specifications for the length test.
Table 8-4. Length Test Specifications
Twisted Pair cable Coax
Range 0 to 328 ft (100m) 0 to 328 ft (100m)
Resolution 1 ft or 0.1m 1 ft or 0.1m
Accuracy ± (1 ft (.3m) + 2% of reading) ± (1 ft (.3m) + 2% of reading)
Range 328 to 2500 ft (762m) 328 to 4000 ft (1219m)
Resolution 1 ft or 0.1m 1 ft or 0.1m
Accuracy ± (1 ft (.3m) + 4% of reading) ± (1 ft (.3m) + 4% of reading)
Note
Specifications are relative to calibrated value using a representative
reference cable. Variations occur because of variations in the cable
manufacturing process.
Propagation Delay Test
Table 8-5 shows the specifications for the propagation delay test.
Table 8-5. Propagation Delay Test Specifications
Twisted Pair cable Coax
Range 0 to 500 ns 0 to 500 ns
Resolution 1 ns 1 ns
Accuracy ±(2 ns + 2% of reading) ±(2 ns + 2% of reading)
Range 500 to 3800 ns 500 to 6000 ns
Resolution 1 ns 1 ns
Accuracy ±(2 ns + 4% of reading) ±(2 ns + 4% of reading)
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