ZBA Inc.
16
RS-232 continued
RTS/CTS-
If the scanner wants to send the barcode data to host computer, it will issue the RTS signal first, wait for the CTS signal from the host computer, and then
perform the normal data communication. If there is no replied CTS signal from the host computer after the timeout (Response Delay) duration, the scanner halts
transmission until it detects another active CTS signal.
Xon/Xoff-
When the host computer is unable to accept data, it sends a Xoff code to inform the scanner to suspend data transmission, and Xon to continue.
ACK/NAK-
When the ACK/NAK protocol is used, the scanner waits for an ACK (acknowledge) or (not acknowledge) from the host computer after data transmission, and
will resend in response to a NAK.
Response Delay
The unit stays awake to receive data until the RS-232 Receiver Time-Out expires. A trigger command resets the time-out. When an RS-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
wake up. Change the RS-232 receiver time-out by scanning the bar code 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).
Handshaking
RTS/CTS On
XON/XOFF On
ACK/NAK On
Response Delay
*RTS/CTS Off
*XON/OFF Off
*ACK/NAK Off
Содержание ZB-3062
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