User's Manual

2.4 GHz Communications Option Board
Installation Guide
Elster Integrated Solutions, LLC 12/3/2008
208 South Rogers Lane
Raleigh, NC 27610
[phone]
Fax [phone] of 8
4.2. HOST CONNECTOR
Host Connector pins
1,2 Unregulated 18VDC Power Source.
4 Enables the 3.3V regulator. Will power down Board fully.
5 Control to indicate that another device wishes to transmit.
Will cause the device to immediately cease all transmission.
Used for co-located transmitter applications.
6 Host can signal an upcoming loss of power to provide time for
storage of critical data.
7
Places the board into a low power mode, so the host can have
access to full power from its power supply.
9 Processor digital data communications.(TX)
9
Processor digital data communications.( TBL Write)
10 Processor digital data communications.(RX)
3,11,12,13,14 NC
15,16 GND