HandHeld Entertainment Document Reader 4800dr - Manual (Page 21)

4800dr Barcode Guide 2 - 5
RS-232 Word Length: Data Bits, Stop Bits, and Parity
Data Bits sets the word length at 8 bits of data per character. Stop Bits sets the stop bits at 1. Default = 1. Parity provides a
means of checking character bit patterns for validity. Default = None.
TTL-232 Receiver Time-Out
The unit stays awake to receive data until the TTL-232 Receiver Time-Out expires. A manual or serial trigger resets the time-
out. When a TTL-232 receiver is sleeping, a character may be sent to wake up the receiver and reset the time-out. A transaction
on the CTS line will also wake up the receiver. The receiver takes 300 milliseconds to completely come up. Change the TTL-
232 receiver time-out by scanning the barcode below, then scanning digits from the inside back cover of this manual, then
scanning Save. The range is 0 to 300 seconds. Default = 0 seconds (no time-out - always on).
RS-232 Handshaking
TTL-232 Handshaking allows control of data transmission from the Document Reader using software commands from the host
device. When this feature is turned Off, no data flow control is used. When Data Flow Control is turned On, the host device
suspends transmission by sending the XOFF character (DC3, hex 13) to the Document Reader. To resume transmission, the
host sends the XON character (DC1, hex 11). Data transmission continues where it left off when XOFF was sent. Default = RTS/
CTS, XON/XOFF and ACK/NAK Off.
* 8 Data, 1 Stop, Parity None
8 Data, 1 Stop, Parity Even
8 Data, 1 Stop, Parity Odd
TTL-232 Receiver Time-Out
RTS/CTS On
* XON/OFF Off
* RTS/CTS Off
XON/XOFF On
ACK/NAK On
* ACK/NAK Off