Jenn-Air 1892, 1300 Software Version Information AT, ATI9CRLF, Command Mode Guard Time AT S154

4.7Software Version Information (AT I9)

This command tells the modem to output information about the software version.

Example:	ATI9=1<CR><LF>	return software version
or	ATI9<CR><LF>
Return:	‘an ASCII string detailing the ID and versions of the
	internal processors’ <CR><LF>

An example of the return data is as follows:

Files:

Main micro:"QL3z10", Ver.:1.01.05, Date:31/10/2001

Slave micro:"Slave",Ver.:0.00.02, Date:12/11/20001

Flash Programmer:"karfl3", Ver.:1.00.03, Date:24/10/2001

Hermes®, © 2001, Wood & Douglas Ltd.

4.8Command Mode Guard Time (AT S154)

To enable the transmission of the command sequence within a packet of data, a guard time is placed around the command sequence. If the gap between the characters in the command mode string is less than this guard time, then the data string is assumed to be part of the data. This includes the gap between the last received data byte and the first “+”. The command is:

	AT S154=nnn<CR><LF>
Where	nnn =0 to 255 ms
Default:	10
Read:	AT S154?<CR><LF> read the setting
Read Return:	nnn<CR><LF>
Example:	AT S154=10<CR><LF> set 10 msec time delay

4.9Centre Radio Frequency (AT S155)

The channel change system for the Hermes is based around a centre frequency. The Hermes is programmed with a factory set centre frequency that is the centre of the RF switching band. The channel change is carried out by programming a channel step size (typically 12.5kHz) and setting 00-99 above or 00-99 channels below the centre frequency. The centre frequency can be changed and stored in EEPROM for moving the programmed channels. A temporary change can also be made by storing a new centre frequency in RAM. This is not restored if power is lost to the unit.

Hermes Operator Note Page 15 of 32