from the desk of
GARY MILLER
April 28, 2008
File# 080428
Declaimer:
The views and opinions expressed in this article are solely those of the author and do not necessarily
reflect those of Mercury Instruments or any of its other employees.
Page 6
MI Application Notes & Tips
MI Wireless Connection Drawings
Issue:
# 10
Wiring Diagram for MI Wireless w/ 120 Vac w/o Chargeable Battery
1
2
3
4
5
6
7
8
1
3
4
5
6
7
8
2
AirLink
Modem
MMX or ERX Main Board
Pressure
Expansion
Board
TB2
TB1
Modem Power Control Bd
12v to 6v Reg Bd
+6v (2)
+6v (1)
COM
DC Input
Solar Panel +
Solar Panel -
Txd
Rxd
Com
Series Battery
DC Input +
DC Input -
DC Input -
DC Input +
Series Battery
Com
Rxd
Txd
GND
Control
Modem Pwr
DC Input +
+6v (2)
+6v (1)
COM
DC
Input
GLM
04/24/08
Terminal
Block
120 Vac
to
14.5
Vdc
Power
Supply
120 Volt AC
Input
Solar Panel +
Solar Panel -
Gnd
+
-
Gnd
+
-
Internal
or
External
RS-232
Serial Port
w/ Shorting
Plug