Technologies Ethernet Port Start-Up Guide

FieldServer FS-X25 Start-Up Guide Page 6 of 12
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3 CONNECTION TO THE DEVICE
3.1 Serial Connection
A DB-9 cable should be connected between the Serial port on the FS-X25 and the serial port of the target serial
device.
The Serial 1 port can be configured as either P1 (for RS-232 connection) or R1 (for RS-485 connection). Likewise
the Serial 2 port can be configured as P2 or R2. Note that if a P1 and a R1 connection is declared, the one declared
second will cause a configuration error on the error screen.
Figure 1: Serial Connection Ports
3.1.1 DB-9 Pinouts for RS-232 Connection
Used to connect to DTE type devices.
Typical null modem connection. (Used when
Hardware RTS→CTS flow control is required).
“3 wire” null modem connection (Used when Hardware
RTS→CTS flow control is not required).
The cable used (serial cross-over cable) is available at any electronics retailer/distributor.
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