
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
81