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C2908M-B (4/05) 47
Configuration
Item
Default
Setting Description
Serial port function Terminal Select a controllable device from the pull-down menu: Terminal, Transparent, or Pelco Prot (protocol).
If the port must transmit data transparently, select Transparent. You can use Pelco Prot to send any kind
of control data for a Spectra, Esprit, Genex, or a Pelco matrix.
Baud rate 19200 Use the pull-down menu to select a transmission rate from 600 to 115200 baud. Refer to Appendix A for
settings.
Data bits 8 The number of data bits is set at 8 per character.
Stop bits 1 Use the pull-down menu to select the number of stop bits (1 or 2) per character. Refer to Appendix A for
settings.
Parity check None Use the pull-down menu to select the type of parity check (None, Even, or Odd). Refer to Appendix A for
settings.
Interface mode RS232 Use the pull-down menu to select the required protocol for the port (RS232 or RS422/485). Use RS-232 for
two-wire communication (TXD and RXD) and RS-422 for four wire communication (TX+, TX−, RX+, RX−).
(RS-485 is not normally used except in advanced applications.)
Half-duplex mode Off Typically, half-duplex mode is used for transmission schemes that use one medium to both transmit and
receive data. This RS-485 mode will keep the NET300 from transmitting and receiving data simultaneously.
Only one function at a time is allowed. The transmitter is turned off when the device at the other end of the
line will use the connection. (Refer to Table A.)
Buffered mode also transfers data input to the COM port.
Depending on the equipment used, the Serial Port Function field may have to be set to Transparent if
sending any control data.
Genex protocol ID N/A Enter the address of the Genex unit with which you want to communicate.
Spectra/Esprit
protocol ID
N/A Enter the address of the Spectra or Esprit unit with which you want to communicate. This must match the
P-protocol address of the Spectra or Esprit unit.