Doc. No. 06EN003291 Rev. A
2 - 9
Model ST98 Flow Meter
CHAPTER 2 - INSTALLATION
FLUID COMPONENTS, INTL
Serial Communication (Hyper Terminal Hook-Up)
The RJ-12 (P1) connector on the customer connection board provides RS-232 communication with the user. An
FC88 Communicator can be plugged in for periodical re-configuration and/or diagnostics, or personal computer
can be plugged in instead of the FC88 Communicator. See Figure 2-4 for the location of P1. This connection is a
RJ-12 communication (phone) jack. Figure 2-7 represents the connection between the serial port and the host
device.
Figure 2-7. Wiring Diagram, DB-9 and DB25 PC Connectors
FCI recommends using the ST98 PC Interface Kit P/N: 014108-01 to connect the flow transmitter to a personal
computer. The Kit includes operation instructions and an adaptor for the RJ-12 to serial connection. Connect one
end of the interface kit to the RJ-12 port and the other end to a DB pin connector. Plug the connector into the
COM1 or COM2 port in the back of the computer terminal.
See instructions on how to use the serial communications in the next chapter.
6
5
4
3
2
1
AF Series Serial Port
RJ-11 Phone Jack
6
5
4
3
2
1
RJ-11 Pin
Description
DCD
DTR
TXD
RXD
GND
IBM PC
DB-9 Connector
Data Carrier Detect
Data Termial Ready
Transmit Data
Receive Data
Ground
+5V
NC
DTR
TXD
RXD
GND
6
5
4
3
2
1
RJ-11 Pin
Description
DCD
DTR
TXD
RXD
GND
IBM PC
DB-25 Connector
Data Carrier Detect
Data Termial Ready
Transmit Data
Receive Data
Ground
+5V
NC
DTR
TXD
RXD
GND
8
20
2
3
7
1
4
3
2
5
C00251-2
ST98 SERIAL PORT
RJ-12 PHONE JACK
RJ-12 PIN
RJ-12 PIN
