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Prodelin 3.8 Meter Antenna (Model 1381)
Installation Kit
1 Introduction
This document describes an installation kit that is used in conjunction with the RC2K90INT-1 interface
box which allows an RC2000C AZ/EL antenna controller to control a Prodelin 3.8 meter antenna (Model
1381).
The following issues are addressed in this paper ...
•
The AC power requirements of the interface box.
•
Recommended types of cable which may be used to connect the RC2000C antenna controller to the
interface box.
•
A controller - interface box - antenna wiring diagram.
•
RC2000C software configuration parameters.
•
A conduit/wiring schedule.
•
A Bill of Materials.
2 AC Power
The interface box is housed in a NEMA 4 weatherproof enclosure. When used with a Prodelin 3.8 meter
antenna it is mounted on the antenna kingpost on the 'reflector' side of the kingpost. 120/240 Volt AC
power must be provided at the antenna pad. All ungrounded AC line supply conductors must be fused or
protected with circuit breakers, do not fuse neutral or grounded conductors. 15 or 20 amp circuit breakers
are sufficient. In addition, a 120/240 Volt AC emergency disconnect conforming to the NEC (National
Electric Code) and other applicable electrical codes must be provided at the antenna and be readily
accessible to personnel in the vicinity of the antenna.
The AC line input of the interface box will be prewired with 8 feet of 16/3 cable. The interface box has a
straight 1/2" conduit fitting appropriate for flexible steel reinforced liquid tight conduit. The user should
make provisions to accept this type of conduit on the electrical box which houses the emergency
disconnect. Alternatively, the user can replace the liquid tight conduit fitting with a different type of
conduit fitting. The interface box is punched with a 7/8" diameter hole for the liquid tight conduit fitting.
3 Antenna Controller to Interface Box Interconnect Cable
The user must supply the cable to connect the RC2000C to the interface box. On the interface box there is
a 1/2" straight liquid tight steel reinforced flexible conduit fitting reserved for mechanically connecting the
interconnect cable to the interface box. The conduit fitting has a 1/2" diameter opening which the
interconnect cable must pass through to enter the interface. Make sure that the interconnect cable(s)
selected will fit through the 1/2" diameter opening. Alternatively, the user can replace the liquid tight
conduit fitting with a different type of conduit fitting. The interface box is punched with a 7/8" diameter
hole for the liquid tight conduit fitting.
The cable must have 2 pairs of 20 AWG (or heavier) conductors to carry the motor control signals
(forward - stop - reverse). Shielded conductors are not necessary for these signals but if shielded
conductors are available the shield can be used. For shielded motor control conductors, follow the rules
Prodelin 3.8m Antenna Installation Kit
20
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