PCI Photon 8 Port RS232 Index
Chapter 4 Page 43
9 PIN D CONNECTOR
25 PIN D CONNECTOR
9 Pin D Serial Port To A Modem.
If you are connecting a MODEM to a 9 pin D Serial Port
then you will NOT need a cross over cable and a straight through
cable connected as the 9 to 25 pin adapter given in Figure 4-5.
9 Pin D Serial Port Loop Back Connector.
A loop back connector can be used to echo RS232 data
transmitted by a serial port back into its own RS232 receiver. In
this way, the function of the serial port can be tested.
For an AT style Serial Port use the a female 9 way connector
wired as in Figure 4-4.
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