Essex Electronics K1 Series Installation Instructions Manual page 22

You should hear 3 rapid audible beeps and see both LED's extin-
guish. At this point the Keypad will appear dead and not accept any
entries.
Examples:
3 1 0 (Sets 1200 baud, odd pariety and normal mode)
7 0 2 (Sets 19200 baud, no pariety and buffered mode)
This procedure may be repeated to change the Baud Rate and Par-
ity option. You must enter all three digits even if you wish to change
only one setting. Factory default is 9600 baud, no parity, normal.
Disconnect power to the RED wire and disconnect the PINK wire
from the BLACK wire.
NORMAL mode outputs the following codes:
0 - 0x30
1 - 0x31
2 - 0x32
3 - 0x33
4 - 0x34
5 - 0x35
ALTCHAR mode outputs the following codes:
0 - 0x30
1 - 0x31
2 - 0x32
3 - 0x33
4 - 0x34
5 - 0x35
Note: All serial output formats use a single start and stop bit.
18 Essex Electronics, Inc. | 805.684.7601 | 800.KEY-LESS | fax 805.684.0232 | keyless.com
6 - 0x36
7 - 0x37
8 - 0x38
9 - 0x39
* - 0x2A
# - 0x23
6 - 0x36
7 - 0x37
8 - 0x38
9 - 0x39
* - 0x1B
# - 0x0D