Bit Word Keypad Reader; Bit Word Specifications - Essex Electronics K1 Series Installation Instructions Manual

8 Bit Word Keypad Reader

8 Bit Word Specifications


DATA 1 and DATA 0 signals are open collector outputs with 2.2K
pull-ups to the internal +5V. The data is sent at 1 msec per bit with
a pulse duration of 50 usec. An annunciator beeps with each key
press. An output is generated with each key press which can be
used to drive a CCTV or Security Light. Located through the BLUE
wire (see Connector Wiring), this is an open collector output capable
of sinking 1/4 A with a 30 second on time.
Each key press generates an 8-Bit sequence in the following output
format:
KEY OUTPUT
0
11110000
1 11100001
2 11010010
3
11000011
4
10110100
5
10100101
Essex Electronics, Inc. | 805.684.7601 | 800.KEY-LESS | fax 805.684.0232 | keyless.com
KEY OUTPUT
6
10010110
7 10000111
8 01111000
9
01101001
*
01011010
#
01001011
11