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LT 1804 Product Reference Guide: Programming the LT 1804
Scan and Store affects Code 39 decodes only. If you select scan and store, it is
recommended that you configure the scanner to decode Code 39 symbology
only.
Baud Rate
Baud rate is the number of bits of data transmitted per second. The unit'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.
Parity
A parity check bit is the most significant bit of each ASCII coded character. If
you select ODD parity, the parity bit will have a value 0 or 1, based on data, to
ensure that an odd number of 1 bits are contained in the coded character.
If you select EVEN parity, the parity bit will have a value, 0 or 1, to ensure that
an even number of 1 bits are contained in the coded character. Select MARK
parity and the parity bit will always be 1. Select SPACE parity and the parity
bit will always be 0. Select the parity type according to host device
requirements.
Hardware Handshaking
Hardware handshaking allows you to check the readiness of the receiving
device before data is transmitted. If the receiving device is periodically
occupied with other tasks, hardware handshaking is needed to prevent loss of
transmitted data.
Select whether the scan data is to be transmitted as soon as it is available or
whether transmission follows the RTS/CTS procedure. See
Communication
Protocols on page 4-21
for more details.
Software Handshaking
This parameter offers control of the data transmission process in addition to, or
instead of, that offered by hardware handshaking. These options may be
combined, for example ACK/NAK with ENQ.
1. No Software Handshaking
4-8
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