6
Pin Outs
DTE Device: DCE Device:
The fastest way to determine whether a device is a DTE or a DCE device is to
check the voltage level on pin 2 of the DB-9 when the COM port is active. If the
voltage is –12 V to –3 V, then the device is likely a DCE. You can further con-
firm that conclusion by checking the voltage on pin 3. On a DCE device, the
level should be at ground.
The opposite is true of a DTE device. The voltage of pin 2 should be ground
and the voltage of pin 3 should be in the –12 V to –3 V range.
PIN
Direction
Signal
PIN Direction Signal
1 Input DCD 1 Output DCD
2 Input RX 2 Output TX
3 Output TX 3 Input RX
4 Output DTR 4 Input DTR
5 -- GND 5 -- GND
6 Input DSR 6 Output DSR
7 Output RTS 7 Input RTS
8 Input CTS 8 Output CTS
9 Input RI 9 Output RI
3
application is a DTE or DCE device. The Wavespeed/S device must be set to
the opposite device type of the device to which it will be attached. One of the
Wavespeed/S devices must be a DTE device and the other must be a DCE de-
vice. You may need to use a NULL modem adaptor on one of the devices.
12. For each port setting, select the desired value.
13. When all settings are specified, select the Set Port Configuration
button to send the settings to the local device.
14. After viewing the confirmation message, select the Next button.
Configure Remote Device Port Settings
In most cases, the port settings, such as baud rate, data bits, et cetera, are the
same as those set in the local device configuration. Therefore, the Configura-
tion Wizard initializes the settings to those values.
15. For each category, select the desired value.
16. When all selections are specified, select the Set Port Configuration
button to send the settings to the remote device.
17. After viewing the confirmation message, select the Next button.
18. While in the Save Configuration Settings, select the Save button to
store the settings. Until reconfigured, the devices use the settings that
you selected.
19. Place both Wavespeed/S units in the “On” mode, by sliding the three
position switch back to the left (toward the power connector).
SPP Server Configuration
1. Power the units and connect one of them to a serial port on your com-
puter.
2. Place both units in configuration mode by sliding the status switch to
the right (away from the power connector).
3. Launch the WvsdpCfg.exe configuration utility.
4. In the first screen, select SPP Server in the Device Function box.
Select COM Port
5. Specify the COM port to which the local Wavespeed/S device is at-
tached. The COM port can be selected in one of two ways.
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