microHAM ARXC.REL Quick Start Manual page 5

Communication line has to be twisted pair, we recommend to use readily available CAT5 or
CAT6 cable. In case of longer connection (hundreds of meters), terminate both ends of
communication line by 150 ohm resistor connected between ZA and ZB poles. Use unused
wires in parallel for each power pole connection to minimize power drop, especially if you use
power leads also for powering other device like preamplifier, antenna switch or similar device.
For proper ARXC module functionality voltage at its power terminal should be at least 7V.
Maximal consumption (including powered device) is 500mA limited internally by ARCO. It is
ample power for ARXC devices alone, but if provided power reserve is not enough for powering
controlled devices, use D-SENSOR output only for ARXC modules and power controlled
devices using separate power supply.
ARXC MODULE
ZA
ZB
+12V
GND
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D-SENSOR PORT NAME
ZA
ZB
+12 V OUT
GND
ARCO connection to single ARXC.REL
PIN NUMBER
2
1
10
9
For controlling external devices, ARXC.REL
provides one SPDT contact per relay,
allowing to connect and implement any kind
of switching requirement. Contacts are
located at a pluggable terminal for simpler
assembly. Each energized relay is indicated
by LED indicator and each relay can be
manually energized by related pushbutton to
help in-field troubleshooting.
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