Multitech MultiConnect BT MTS2BTA Quick Start Manual page 7

Optional – Directions for Direct DC Power
Connection for Use with the MTS2BTA
•
Connect a fused DC power
cable into the power
connector on the
MultiModem.
•
Then attach the two wires
at the other end of the
fused cable to a DC
fuse/terminal block on a
vehicle in which you are
mounting the MultiModem.
Connect the red wire to the
"+" positive and the black
wire to the "–" negative. Be
sure the GND connection is
correct.
Note: For automotive
application: according to the
type of application, you can
use permanent "+" or key-
switched "+". Connect the
power supply to its source (for
example, in a mobile situation,
to the vehicle's DC
fuse/terminal block).
Warning: Over-voltage
protection is provided on the
device. To ensure complete
protection, you may want to
add additional filtering to the
DC input.
Serial-to-Bluetooth Adapter
7