MISCELLANEOUS CONNECTORS, SWITCHES AND IC's
J, U, or S FUNCTION
J1 Display Interface Connector
J2 Solid State Relay Board Interface
J5 Expansion Interface Connector (Optional Cards)
J7 DC/DC Converter/Charger Card Connector
U19 RS485 IC Location
U6 EPROM, Program Memory Chip
U10 Static RAM Memory Chip (optional battery backup)
S1 Calibration Switch
U12, U20, U21 20ma Current Loop Interface Chips
Figure 6 Main Board Connections and Components
Section 12 Connections
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