User manual

RS232C Interface Page 7
Columbia Weather Systems, Inc.
Figure 4: Sample Switch Settings
S1
Set S1 positions 1 through 6 according to the information obtained for your equipment. Set S1
positions 7 and 7 according to the frequency with which you want the Capricorn II to sent data to
your equipment. You can use the space below to record your switch positions.
S1 1 2 3 4 5 6 7 8
___ ___ ___ ___ ___ ___ ___ ___
Setting Switch 2
Determine whether the Capricorn II RS232C Interface will appear as a DTE (Data Terminal
Equipment) or DCE (Data Communications Equipment) when connected.
Typically, if you connect the weather station to the RS232 port of a computer which is
configured as a DTE, the Interface is set up as a DCE. If you connect the weather station to a
DCE, such as a printer or modem, you must set up the RS232 Interface as a DTE.
Use the following examples to set these switches. If you need to know the actual signal to pin
connections, please refer to Section 4: Technical Information.
Use the following settings if the Capricorn II RS232C Interface is a DTE and connected to a
modem, printer, or other peripheral device (see Figure 5):
S2 1 2 3 4 5 6 7 8 RTS JUMPER
OFF ON ON OFF ON OFF OFF ON REMOVED
Figure 5: Switch 2 Setting Capricorn Interface as a DTE
S2
Use the following setting if the Capricorn II RS232C Interface is a DCE and connected to a DTE
configured port on a computer (see Figure 6): You can use the space below to record your
switch positions.
S2 1 2 3 4 5 6 7 8 RTS JUMPER
OFF OFF ON OFF OFF ON ON OFF REMOVED