4
RS232 interface
To control annunciation send three-byte control packet to the reader. Packets
should be transmitted with 2 400 bits per second, 8 bit data, no parity, 1 stop bit.
Packet format:
Bit
7
6
5
4
3
2
1
0
byte 0
0
1
0
0
1
0
0
1
byte 1
-
-
red
blinks
-
red
steady
-
-
-
byte 2
green
steady
-
green
blinks
-
-
buzzer
pulsatory
-
buzzer
uninterruptedly
1
– corresponds to LED or buzzer switching on. LED blinking and buzzer pulsatory
control bits have the highest priority.
Annunciation does not change until next control packet is received.
Reader transmits data as follows:
byte #
0
1…10
11
12
Card read
23h
data
C sum
0D h
PIN entered
21h
data
C sum
0D h
data:
Bit
7
6
5
4
3
2
1
0
Destination
0
0
1
1
X
X
X
X
Checksum: exclusive OR of low nibbles of bytes from 1 to 10, high nibble of
always must be 3h.
Example
:
Card code 7E000460AA will be sent as:
23h, 37h, 3Eh, 30h, 30h, 30h, 34h, 36h, 30h, 3Ah, 3Ah, 3Bh, 0Dh.
Limited Warranty
Integrated Technical Vision Ltd warrants that for a period of 24months from the
date of purchase, the product shall be free of defect in materials and workmanship
under normal use and that in fulfillment of any breach of such warranty, Integrated
Technical Vision Ltd. shall, at its option, repair or replace the defective equipment
upon return of the equipment to its repair depot. This warranty applies only to
defects in parts and workmanship and not damages incurred in shipping or
handing, or damages due to causes beyond the control of Integrated Technical
Vision Ltd such as lightning, excessive voltage, mechanical shock, water damage,
or damage arising out of abuse, alteration or improper application of the
equipment.
The foregoing warranty shall apply only to the original buyer, and is and shall be
lieu of any and all other warranties, whether expressed or implied and of all other
obligations or liabilities on the part of Integrated Technical Vision Ltd. This
warranty contains the entire warranty. Integrated Technical Vision Ltd neither
assumes, nor authorizes any other person purporting to act on its behalf to modify
or to change this warranty, nor to assume for it any warranty or liability concerning
this product.
In no event shall Integrated Technical Vision Ltd be liable for any direct, indirect or
consequential damages. Loss of anticipated profits, loss of time or any other
losses incurred by the buyer in connection with the purchase, installation or
operation or failure of this product.
