![background image](http://html.mh-extra.com/html/hand-held-products/2020/2020_user-manual_589664048.webp)
2 - 18
2020/4820/4820 i User’s Guide
RS-232 Receiver Time-Out
The unit stays awake to receive data until the RS-232 Receiver Time-Out
expires. A manual or serial trigger 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 come up. Change the RS-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
RS-232 Handshaking allows control of data transmission from the image
scanner using software commands from the host device. CTS/RTS operates in
mode 2. 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 image scanner. 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.
RS-232 Receiver Time-Out
RTS/CTS On
* XON/OFF Off
* RTS/CTS Off
XON/XOFF On
ACK/NAK On
* ACK/NAK Off
Summary of Contents for 2020
Page 1: ... User s Guide 2020 4820 4820 i 2D Cordless Imaging System ...
Page 7: ...Base Compliance Label locations Item Number Serial Number and Revision Information location ...
Page 8: ......
Page 20: ...xii ...
Page 56: ...2 26 2020 4820 4820 i User s Guide ...
Page 80: ...3 24 2020 4820 4820 i User s Guide ...
Page 112: ...5 8 2020 4820 4820 i User s Guide ...
Page 118: ...6 6 2020 4820 4820 i User s Guide ...
Page 170: ...7 52 2020 4820 4820 i User s Guide ...
Page 204: ...9 14 2020 4820 4820 i User s Guide Exit Selections Save OCR Template Discard OCR Template ...
Page 242: ...12 26 2020 4820 4820 i User s Guide ...
Page 252: ...13 10 2020 4820 4820 i User s Guide ...
Page 273: ......
Page 277: ...OCR Programming Chart a e d g c h t l Discard Save r ...