Operations Manual

Revision: "1" RTU5 Operations Manual
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RTU5 to Antenna Cabling Procedures
The recommended antenna is a Cellwave PD-200; all information presented in this document assumes that this
is the antenna being used, check with the manufacturer for cable and connector information on any other
antenna. For RF cables, we recommend 50 ohm low density foam dielectric coaxial cables such as the
HELIAX LDF series from Andrew Corp. or equivalent from Eupen or RFS Cellwave.
The primary concern surrounding the selection of interconnection cable used between the RTU5 and the
Antenna is the distance the antenna is located from the RTU5.
If the antenna is located within 100ft from the RTU5, the connection procedure shown in illustration “A” is
recommended.
Use a ½ inch cable (HELIAX LDF4 – 50A) with a Male “N” connector (HELIAX L4PNM) on the RTU5 end and
a PL 259 connector on the antenna end.
If the antenna is located between 100ft and 500ft from the RTU5, the connection procedure shown in
illustration “B” is recommended.
o Use a ⅞ inch cable (HELIAX LDF5 – 50A), with a Female “N” connector (HELIAX L5NF) on both
ends, as the main run from the RTU5 to the Antenna.
o Because cable larger than ½ inch is very hard to bend into a tight radius an interconnecting ½ inch
cable is used on both ends of the main run.
 On the RTU5 end a ½ inch cable between 3ft and 6ft long (HELIAX FSJ4 – 50B) with Male “N”
connectors (HELIAX F4PNM-C) on each end is required to connect the RTU5 to the ⅞ inch
cable of the main run.
 On the Antenna end a ½ inch cable (HELIAX FSJ4 – 50B) about 18 inches long with a Male “N”
connector (HELIAX F4PNM-C) to attach to the main run cable and a PL 259 connector to attach
to the antenna. (Where required this cable is supplied with the Cellwave PD-200 antenna.)
If the antenna is located greater than 500ft from the RTU5, the connection procedure shown in illustration
“C” is recommended.
o Use a 1¼ inch cable (HELIAX LDF6 – 50), with a Female “N” connector (HELIAX L6PNF) on both
ends, as the main run from the RTU5 to the Antenna.
o Because cable larger than ½ inch is very hard to bend into a tight radius an interconnecting ½ inch
cable is used on both ends of the main run.
 On the RTU5 end a ½ inch cable (HELIAX FSJ4 – 50B) between 3ft and 6ft long with Male “N”
connectors (HELIAX F4PNM-C) on each end is required to connect the RTU5 to the 1¼ inch
cable of the main run.
 On the Antenna end a ½ inch cable (HELIAX FSJ4 – 50B) about 18 inches long with a Male “N”
connector (HELIAX F4PNM-C) to attach to the main run cable and a PL 259 connector to attach
to the antenna. (Where required this cable is supplied with the Cellwave PD-200 antenna.)
Figure 3 RTU5 to Antenna Cable Options
Up to 100 ft
From 100 ft to 500 ft
Over 500 ft
A
B
C
3ft to 6 ft
3ft to 6 ft
18 inch
18 inch
N Male
N MaleN Male N Female N Female
PL 259 Male
PL 259 Male
PL 259 Male
A
N
T
E
N
N
A
M
B
S
½ inch cable
7
/
8
inch cable
1¼ inch cable