RC4500 Antenna Controller Chapter 3 Mechanical & Electrical Installation
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3.1.2.1 Power Entry
J11 is an IEC-C14 male power socket on the back panel for supplying AC power to the RC4500.
The RC4500 is shipped from the factory with a line cord with an IEC-C13 plug. The RC4500 can accept
85 to 265 VAC at 50/60 Hz.
The fuse holder is designed to accommodate 5mm X 20mm fuses such as Littelfuse # 215005.HXP or
Bussmann # BK/S505-5-R. One of the two fuses in the fuse holder is a spare. The fuse rating is 250V,
5A time delay/slow blow.
3.1.2.2 Resolver Inputs
NOTE: SHIELDED CABLE IS REQUIRED FOR THE RESOLVER CONNECTIONS. THE
SHIELD MUST BE CONNECTED TO THE RC4500 CHASSIS GROUND AT THE CONTROLLER
AND MUST NOT BE CONNECTED AT THE ANTENNA.
Three shielded twisted-pairs for each resolver are required to minimize noise pickup and cross-coupling,
which can result in antenna positioning errors. A cable such as Belden 8777 (RCI p/n CBL-3X2_22STP1)
is recommended. Most resolvers have flying lead connections. Wire-to-wire interconnects can be
accomplished with solder and heat shrink tubing or a waterproof crimp connector such as 3M™
Scotchlok™ UY2 (RCI p/n CN-JIZR-2).
J3, J4 and J5 are identical connectors for Azimuth, Elevation and Polarization respectively. These
connectors are 9 pin D-subminiature female receptacles. The duplicated pinout of these connectors allow
for easy testing of the position sensing circuitry by swapping connectors. The individual pin definitions are
as follows:
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