User's Manual

ARCXTEND USER MANUAL – R1.4, ISSUE 4
Copyright 2005 Arcwave, Inc. 16
QPSK (US)
16 QAM (US)
64 QAM (US)
3 miles
2 miles
1 mile
4.2 miles
3.1 miles
1.6 miles
7.0 sq-miles
3.1 sq-miles
0.8 sq-miles
Table 3-1: AX1255-SM-90 Strand Mounted Network Hub (18 ft off the ground)
Modulation Range Arc Area
Downstream Wireless Link
64 QAM (DS)
256 QAM (DS)
2 miles
1 mile
3.1 miles
1.6 miles
3.1 sq-miles
0.8 sq-miles
Upstream Wireless Link
QPSK (US)
16 QAM (US)
64 QAM (US)
6 miles
3 miles
2 miles
9.4 miles
4.7 miles
3.1 miles
28.0 sq-miles
7.0 sq-miles
3.1 sq-miles
Table 3-2: AX1255-SM-25 Strand Mounted Network Hub (18 ft off the ground)
Modulation Range Arc Area
Downstream Wireless Link
64 QAM (DS)
256 QAM (DS)
2 miles
0.5 miles
3.1 miles
0.8 miles
3.1 sq-miles
0.20 sq-miles
Upstream Wireless Link
QPSK (US)
16 QAM (US)
64 QAM (US)
6 miles
3 miles
2 mile
9.4 miles
4.7 miles
3.1 miles
28.0 sq-miles
7.0 sq-miles
3.1 sq-miles
Table 3-3: AX1255-VM-90 Vertical Mounted Network Hub (100 ft off the ground)
Equipment Location
A simple method for choosing the location of the Hub uses a map
1
of the area to be covered. Draw
two circles taking the customer site(s) to be covered as its center and the maximum range of each
Hub type as the circle’s radius. Try first to find locations on your plant that fall within the range of the
AX1255-SM-90 and the AX1255-SM-25 and then the AX1255-VM-90.
The AX1255-SM-90 provides maximum coverage area at the expense of limited range, whereas the
AX1255-SM-25 provides maximum range at the expense of limited coverage area. The AX1255-
1
A network map with street and building information is ideal for this activity.