Ramsey Electronics URC1 Owner's Manual page 24

Where 2 is the command code, 1 is the device code, and 192 is the value.
To vary the resistance down:
Press and hold the last asterisk to keep decreasing the resistance. The
resistance stops decreasing at a value of zero (near zero ohms).
The URC1 replies with a short then long tone when at zero to indicate "A" for
acknowledge.
To vary the resistance up:
Press and hold the pound sign to keep increasing the resistance. The
resistance stops at a value of 255 (10K ohms). The URC1 replies with a short
then long tone at a value of 255 to indicate "A" for acknowledge.
Note that there are only four pot controls (0-3) possible, though only two
provided on this kit, so any value over 3 will cause an error and the command
will be aborted. Also any value over 255 in the pot value code will do the
same.
To set a Timer:
*T{Timer #}tt[*][ss][*][mm][*][hh] tt[*][ss][*][mm][*][hh] or
*8{Timer #}tt[*][ss][*][mm][*][hh] tt[*][ss][*][mm][*][hh]
(.........Time off.......) (.........Time on.........)
tt indicates hundredths of a second, ss indicates seconds, mm indicates
minutes, and hh indicates hours. Where Timer # is 0-2; tt, ss, mm, and hh are
values from 00-99. Any value over these will cause an error and the command
will be aborted. Notice that pressing an asterisk at the end of tt, ss, or mm will
end the command for that part of the timing cycle. For example pressing:
will set timer 2 on for 10mS and off for 10mS. To set on and off for 1 hour
press:
Note there are no asterisks at the end of each time. This makes entering
easier since all of the times are entered anyhow. The only time you need to
press the ending asterisk is when you plan on not entering the hours.
After each time is set, the URC1 replies with a short then long tone to indicate
"A" for acknowledge. When you are done entering the URC1 replies with a
short then long tone to indicate "A" for acknowledge so that two "A"s are sent
upon completion. Try it out to see how it works
Some more examples:
To set timer2 on for 120mS and off for 12 hours, 35 minutes:
*C{Level #}* or *2{Level #}*
*C{Level #}# or *2{Level #}#
*8201*01*
*820000000100000001
*820000351212*
URC1 • 24