Allen-Bradley MediaChecker 1788-MCHKR Manual page 43

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Cable
DH+/RIO 1770-CD
DH+/RIO 9022
DH+/RIO 9463
1. For these cable types, the length to an open is displayed, but the "OPEN" error message is not displayed.
2. 0.5 m (1 ft) for cables <100 m long (328 ft); 1 m (5 ft) for cables >100 m long; 1 ft (0.5 m) for cables to 999 ft long (305 m); 10 ft (3 m)
for cables >999 ft long.
3. For the data pair only.
Test
Cable length
Distance to short
Distance to open
1
Split pairs
1. Testing for split pairs requires 2 or more pairs with similar capacitance. Split pair section of the cable must be at least 2 meters (6 ft)
long and greater than 10 % of the total cable length.
2. 0.5 m (1 ft) for cables <100 m long (328 ft); 1 m (5 ft) for cables >100 m long; 1 ft (0.5 m) for cables to 999 ft long (305 m); 10 ft (3 m) for
cables >999 ft long.
Table 20. DH+/RIO Cable Test Specifications
Range
Accuracy
1 m to 350 m
7 % + 2 m (6 ft)
(2 ft to 999 ft)
Table 21. Ethernet Cable Test Specifications
Range
1 m to 350 m (2 ft to 999 ft)
Cable Length
2
Resolution
See Note 2
Accuracy
7 % + 0.5 m (1 ft)
7 % + 3 m (7 % + 10 ft)
7 % + 3 m (7 % + 10 ft)
NA
Specifications
Distance to Short
3
Accuracy Resolution
7 % + 3 m
0.5 m (1 ft)
(7 % + 10 ft)
2
Resolution
0.5 m (1 ft)
NA
1788-UM002A-US-P – April 2000
43
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