I need to emulate a Symbol PDT Gun communicating with an application over a serial line. I have monitored the communication between the devices and found the the device sends 0x"32", 0x"32", 0x"2d", 0x"ff", 0x"ff" before it receives a response from the application. When I send this character stream from a program on a different computer, I get no response. Any suggestions on what I may be missing? The normal device wiring configuration has CTS wired to RTS (pins 7 to 8) and DTR is grounded (pins 4 to 5).