CPU Module I/O connections - Type 4Figure 3-11:
A. Frequency/Digital Output 2
B. Frequency/Digital Output 3
C. Frequency/Digital Output 4
D. Frequency/Digital Output 5
E. Analog Input - Temperature and pressure connections
Optional input and output modules
These modules are plugged into the second or third slot (retrofit) on the electronics head.
These module options consist of an RS-232, RS-485 serial port modules or Expansion I/O
Module.
These modules allow expanding I/O capabilities of the meter to include extra serial ports.
There are three options currently available. Serial RS-232 without handshaking, serial
RS-485 Half-duplex, or RS-232/RS/485, with 3 port Ethernet Switches. For the standard
Electrical installation
64 Gas Ultrasonic Flow Meter
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