Configure serial interfaces
Digi TransPort User Guide
267
Configure serial interfaces
Digi routers support a variety of serial interfaces, either inbuilt or as optional add-on modules.
Each asynchronous serial (ASY) port may be configured to operate at different speed, data format
etc. These parameters may be changed using the web interface or from the command line using
AT commands and S registers.
The
Configuration > Network > Interfaces > Serial
menu item opens out when clicked, to show
the list of supported serial interfaces.
Note
On models fitted with W-WAN modules, one of the interfaces (and its associated web
page) will be dedicated to the W-WAN module. The title will reflect this. Similarly, on
models fitted with an analogue MODEM, one of the interfaces will be entitled PSTN port.
This section describes the basic configuration of a serial port.
Enable this serial interface
When disabled, this is the only item that appears in the section. Enabling this setting displays
additional configuration parameters.
Description
A description for the interface. For example, if the serial interface is connected to a card
payment device, the description could read
Till 1
or similar appropriate text.
Baud Rate
The required baud rate for the associated serial port.
Data Bits / Parity
The required data format for the interface. 8 data bits, no parity is a very common
configuration.
Note
When the serial port is not in 8-bit parity mode (such as it is in either 8-bit no parity, or 7-
bit with parity), the router will continually check for parity when receiving AT commands
and adjust and match accordingly.
