AMERITRON RCS-10 Інструкція з експлуатації - Сторінка 9

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Ameritron RCS-10

Instruction Manual

Wire gauge is not important, as long as the total resistance of the control wire used is less

than 20 ohms. This means very long small-gauge wires will normally work fine. Normal

telephone-type #24 wires will work at distances well over 500 feet. The largest concern

related to wire selection is mechanical life rather than electrical characteristics.

If you use another brand of control head, ports A, B and C are encoded with BCD 1,2,

and 4 respectively. Antenna 1 is BCD zero, while antenna 8 is BCD 7. The switch

requires 12 volts DC of either positive or negative polarity.

Indoor Control Unit

The indoor unit can be located at any convenient location, as long as it is not exposed to

moisture. It should be grounded to the station ground, and preferably powered from a

separate wall adaptor. Current draw is approximately 300mA maximum, but we

recommend a 500mA power supply for headroom.

This unit is polarity sensitive. It requires the following power connection:

The sleeve is negative, and can be grounded or floated at the power supply. The center

pin is positive, and MUST be ground isolated. The supply must be capable of supplying

300mA continuous at 12-15 volts dc, when using the standard RCS-10 outdoor relay box.

To ensure the supply meets these requirements, we recommend using 500mA or larger

power adaptors ("wall-warts"). This unit will accept voltages of 25 volts if you want to

use it with other relay systems.

The rear-panel connections (figure 2) are labeled A through C for BCD control outputs

used with the RCS-10 remote relay box, and 1 through 8 for one-of-eight inputs or

outputs (such as used with RCS-8 and other switching systems). Maximum current

capability is one ampere.