JETI model Max BEC 2D, Manual, Page: 1 / 12

1. Introduction
The Max BEC 2D is a linear voltage regulator, to provide power for the receiver and servos used
in your models. For increased safety and reliability of this device, a magnetic switch is used to
switch the unit on and off. The Max BEC 2D is fully compatible with the Jeti Duplex System and
can also be operated using the Jeti Box terminal.
To provide power to the BEC, a 2-cell LiPo/LiIon battery can be used or a 5 to 6-cell NiMh/NiCd
battery pack. The voltage regulator supplies a constant voltage to your receiver and servos,
providing smooth servo motion regardless of the discharge state of batteries. For maximum
reliability, two battery packs can be used to provide power and the BEC features two LED's,
indicating the connection state of the the connected packs.
The MAXBEC2D can be monitored and configured via the Jeti Box, either by direct connection, or
wirelessly using the Jeti Duplex system. This allows the input voltage, temperature and output
voltage to be monitored but also, the output voltage can be configured and alarms can be set for
input voltage and temperature as required.
The system uses the 2.4GHz band to communicate, which allows not only data transmission, but
also the receiving of data back from the system. During operation, telemetry data allows the
condition of the system and any measured values to be displayed on the Jeti Box. Switching the
BEC on and off is performed via the special magnetic switch and key, which simply needs to
make contact with the face-plate in the correct orientation for a short period of time to switch the
unit on or off.
2. Description
2.1 MAXBEC2D
The supply batteries are connected to the MAXBEC2D via the two pairs of 1.5mm2 wires. These
wires do not have a plug fitted.
The stabilised ouput power is delivered via one pair of 1.5mm2 wires with an MPX type plug
already fitted for your convenience. The output voltage may be adjusted by using the jumper next
to the output wires. For programming and monitoring the unit can be connected either to the data
socket of your Duplex receiver, or directly to your Jeti Box. Connecting the MAXBEC2D to your
Jeti Box does not require that a separate power-supply is connected to the Jeti Box, if the BEC is
switched-on.