M7 GX Quick Start Guide
17
Raveon Technologies
2.
Connect a DC power source to the DC IN
connection on the front of the modem. Use the
supplied cable, or 18AWG wire, and connect the
RED wire to +, and the black wire to
– (ground).
The black wire and the case of the
M7
should be
connected to earth ground.
3.
Connect a good quality antenna, tuned to the
operating frequency, to the RF connector on the
front of the modem. Use a good antenna, and
place is at as high-above obstructions as possible.
4.
A separation distance of at least 20 centimeters
must be maintained between the transmitter's
radiating structures and the body of the user or
nearby persons.
5.
Connect a GPS antenna to the SMA connector of
the
M7 GX
. Although a passive antenna may work
if the cable length is very short, it is recommended
that an amplified antenna be used, rated for 3.3V
operation.
6.
Connect the computer, terminal, controller, or other
hardware device that will be using the
M7
modem
to its DB-9 serial I/O connector using a shielded
cable. Secure it to the M7 with the two mounting
screws on the sides of the DB-9 connector.
7.
If the antenna is mounted out doors, us a lighting
arrestor in-line with the antenna, and properly
ground the antenna and the
M7
chassis to an earth
ground.
8.
Connect Digital Inputs. The stock
M7 GX
has up to
3 digital inputs, using the input pins of the RS-232
serial port. An open circuit or ground is a 0, and if
they are connected to a positive voltage greater
than 3V, they are a digital 1.
RS-232 Pin
Function
4 - DTR
Input 0
7 - RTS
Input 1
3 - TXD
Input 2
5 - Ground
GND
