User's Manual

4 – 3 General Operation
Switch on the main power switch of the equipment (e.g. Crane) 1.
2.
3.
4.
5.
6.
Install AA-size Alkaline batteries
Insert magnetic key or rotary key and switch to ON position.
Follow the power on procedure to energize the main relay inside receiver.
Operate normally according to the function settings have been done.
After operation, please proceed as following: (1) Press EMS pushbutton
/mushroom, (2) rotate key counter-clock-wise to the “OFF” position (3) remove
key and keep it in a safe place, (4) Switch off the main power switch of the
equipment (e.g. Crane)
4 – 4 Special Functions Operation
4-4-1 Swapping COM & MAIN wires
According to the standard wiring diagram, all relays including the Main relay will
be turned off when the EMS is pressed. However, when a pushbutton is
programmed as a TOGGLE or an ON/OFF function with bypass EMS control, it
won’t work correctly with the standard wire setting diagram. In order to program a
pushbutton as TOGGLE or ON/OFF with bypass EMS control, the MAIN wire and
COM wire must be swapped.
4-4-2 Changing the frequency
It is very simple to change the frequency of the new F21 crystal series. The systems
frequency can be changed simply by replacing the correspondent crystal frequency
in both the TX and RX.
Instructions:
(1). Pry up the crystal unit with a flat screwdriver
(2). Remove the crystal unit from the system.
(3). Use a needle nose pliers to straighten both pins of the new crystal unit.
(4). Insert the new crystal unit vertically into the PC board.
(5). Press the new crystal down into the socket.
4-4-3 Independent COM Line:
The new F21 crystal series provides the option of independent (separated) COM
lines.
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