Xylem iRIS 150 GPRS DATALOGGERS - Manual (Page 15)

9 – IRIS 150 V1.11 User Guide
iQuest (NZ) Ltd - PO Box 15169, Hamilton, New Zealand Tel: +64 7 857-0810 Fax: +64 7 857-0811 Email: [email protected] 9
5 Configuration
The iRIS configuration is initially achieved through the connection of a terminal to the RS232 serial port.
Upon detection of a terminal connection via the DSR signal, the iRIS will output to the terminal screen a
welcome message followed by the main menu. The following sections describe how to set up a terminal
connection and the menu options available while connected.
This description assumes a computer running the Microsoft® Windows® operating system is being used and
all examples relate to the standard Windows® terminal emulator application, HyperTerminal™. The iQuest
support programs iLink and iTerm also include an integral terminal emulator that also enables the
configuration to be viewed and altered.
5.1 Terminal Connection
The iRIS RS232 port is a DTE (Data Terminal Equipment) configured port and is identical in pin-out and
signal allocation to that of an IBM compatible PC’s RS232 port. Therefore the cable required is the same as
that for computer-to-computer communication.
To access the iRIS configuration terminal session, connect a full null-modem cable (as shown below)
between a communication port (e.g. COM1) on your computer and the RS232 port of the iRIS. The null
modem cable configuration has the three main signal pairs crossed over. These pairs are TXD/RXD,
RTS/CTS and DTR/DSR.
Computer iRIS
DB9F DB9F
1 CD CD 1
2 RXD TXD 3
3 TXD RXD 2
4 DTR DSR 6
5 SG SG 5
6 DSR DTR 4
7 RTS CTS 8
8 CTS RTS 7
9 RI RI 9
Figure 4 - RS232 Cable Pin Designations