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Installation
4-113510-A2-GN32-50 January 1998
Local Area Data Set
(LADS) Operation
You can connect 3500 Series DSUs to a 4-wire,
non-loaded metallic circuit that functions as a
point-to-point LADS. Factors that affect this type of
installation are the data rate, the distance between LADS
facilities, and the wire gauge. Table 4-2 summarizes the
typical interrelationship of these factors.
Hardware Strapping
Both Model 3510 and 3511 DSUs can be configured
for installation at the local or remote end of a network by
setting onboard straps. The straps also allow you to
configure either type of DSU (Model 3510 or 3511) as a
LADS for connection to 4-wire metallic circuits.
Table 4-2
3500 Series DSU LADS Connection
Data Rate
Wire Gauge (AWG)
Data Rate
19 22 24 26
2.4 20.0 mi
(32.2 km)
16.6 mi
(26.7 km)
12.7 mi
(20.5 km)
9.4 mi
(15.1 km)
4.8 19.4 mi
(31.2 km)
12.7 mi
(20.5 km)
9.6 mi
(15.4 km)
7.1 mi
(11.5 km)
9.6 15.2 mi
(24.5 km)
9.7 mi
(15.6 km)
7.3 mi
(11.7 km)
5.6 mi
(9.0 km)
19.2 11.8 mi
(19.0 km)
7.5 mi
(12.1 km)
5.7 mi
(9.2 km)
4.2 mi
(6.8 km)
38.4 11.2 mi
(18.0 km)
6.5 mi
(10.5 km)
4.6 mi
(7.4 km)
3.2 mi
(5.1 km)
56 9.2 mi
(14.8 km)
5.4 mi
(8.7 km)
3.8 mi
(6.2 km)
2.8 mi
(4.5 km)
64 9.2 mi
(14.8 km)
5.4 mi
(8.7 km)
3.8 mi
(6.2 km)
2.8 mi
(4.5 km)