User's Manual

Configuration
RFI-148 & RFI-900 High Output Power Paging Transmitters User Manual Page 19 of 134
Figure 7: RFI SNMP Proxy running on embedded hardware on remote sites
3.4 Terminal Menu Interface
The terminal menu provides access to all configuration parameters in the radio.
To access the terminal menu execute the AT? command at the Hayes AT command interface. See section 3.5
on page 19 for information on executing AT commands. The terminal menu will not be started if it is open on
another port, instead the BUSY response is returned.
The terminal menu is available over serial, UDP (ports 64250 and 64251) and TCP (ports 23 and 64250).
3.5 Hayes AT Command Interface
The paging transmitter supports Hayes ATtention commands. These are used to query and change device
configuration and probe performance parameters. AT commands are available via serial port, and via TCP
ports 23 and 64250 on the Ethernet interface.
The format for the query and configuration AT command is:
ATxxx<[I1, I2, … In]><=value><TERM>
Where:
 AT is the attention code. All AT commands must be prefixed with AT. This is case insensitive, so
At, aT, or at can also be used.
 xxx is the actual command. The list of valid AT commands is given in Appendix D on page 71.
 <[I1, I2, … In]> is an optional section that allows the specification of an index. Indexes are
used to access one of an array of similar items. For example, the paging transmitter has a list of
sensor values which can be accessed using the ATI90 indexer. The command ATI90[0] will read
the PA temperature, while the command ATI90[1] will read the driver temperature.
 <=value> is an optional section that is used to set the value of a configuration parameter. If this
section is omitted, then the value of the configuration parameter will be displayed.
 <TERM> is the terminator for the AT command. A terminator can consist of a carriage return (ASCII
value 13
Decimal
) or a carriage return followed by a line feed (ASCII value 10
Decimal
).