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5.0 UPC Types
5.13 Serial Interface
5.13.1
Baud Rate :
Parameter # 0x9C
Baud rate is the number of bits of data transmitted per second. The scan-
ner’s baud rate setting should match the data rate setting of the host
device. If not, data may not reach the host device or may reach it in
distorted form.
Baud Rate 300
(0x01)
Baud Rate 600
(0x02)
Baud Rate 1200
(0x03)
*Baud Rate 9600
(0x06)
Baud Rate 2400
(0x04)
Baud Rate 19,200
(0x07)
Baud Rate 4800
(0x05)
Baud Rate 38,400
(0x08)
5.13.2
Parity :
Parameter # 0x9E
A parity check bit is the most significant bit of each ASCII coded charac-
ter. Select the parity type according to host device requirements.
If you select
ODD
parity, the parity bit has a value 0 or 1, based on data,
to ensure than an odd number of 1 bits is contained in the coded char-
acter.
Odd
(0x00)
Even
(0x01)
Mark
(0x02)
Space
(0x03)
*None
(0x04)
If you select
EVEN
parity, the parity bit has a value 0 or 1, based on
data, to ensure than an even number of 1 bits is contained in the coded
character.
Select
MARK
parity and the parity bit is always 1.
Select
SPACE
parity and the parity bit is always 0.
If no parity is required, select
NONE
.
5.13.3
Software Handshaking :
Parameter # 0x9F
This parameter offers control of the data transmission process in addi-
tion to that offered by hardware handshaking. Hardware handshaking
is always enabled and cannot be disabled by the user.
Disable ACK/NAK Handshaking
When this option is selected, the decoder will neither generate nor ex-
pect ACK/NAK handshaking packets.
Disable ACK/NAK
(0x00)