IP920 Operating Manual: Chapter 4 Configuration 29
Figure 13 Serial Port Configuration
4.5.1 Serial Port Settings
Port Status: serial port server can be enabled or disabled. The COM2 is
normally disabled and used for system console. When data communication
is desired on COM2, this setting should be set to “enabled”. Escape
sequence “+++” can be used to escape from data mode and to go back into
console mode. Please note, “+++” needs to be issued at the right baud rate
to make the port switch modes.
Channel Mode: determines what serial interface shall be used to connect to
external serial devices, RS232, RS422 (4-wire) or RS485 (2-wire). Only
COM1 can be configured to use different serial channel node. DB9 port will
be disabled when RS422 or RS485 mode is selected.
Baud Rate: baud rate used by the server to receive from or transmit to
serial port. Baud rate can be set from 300bps to 230,400 bps.
Data Format: defines serial port framing format, including data bits, parity,
and stop bits. For example, 8N1 means 8 data bits, No parity, and 1 stop bit.
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