AVALON RF, INC.
Page 7
OTX627 Series User’s Guide & Operating Manual
2.1 User Interface.
a) On/Off Switch.
The OTX series transmitters have a electronic on/off switch. The
switch must be held pressed for at least 3 sec to turn the unit on or
off. This shuts off power to the entire transmitter.
b) Power on LED.
This is a red led to indicate the unit is turned on.
c) Status LED
The status led is bi-color and indicates normal operation or
programming mode.
d) Hands Free Back Channel (optional).
This option allows the receiver operator to communicate with the
transmitter operator via a headset that includes an earpiece and a
microphone, when the transmitter is on air.
2.2 Setup.
The OTX series transmitters have the following setups:
a) RF Channel.
b) Output Power Level.
2.3 Electrical Interface.
The transmitter has the following interfaces:
2.3.1 Power Input
a)
The transmitter requires 9-20V dc. The power source can be
unregulated (like a battery) or a dc adaptor as long as the ripple
does not exceed 1Vp-p. When using a dc adaptor or powering
the unit from a vehicle battery, an external filter may be
necessary (depending on the situation) to provide reasonably
clean power to the transmitter.
