Xerox 4510 User Manual

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The RS-422A Serial Interface is hardware compatible with 
the EIA RS-422 standard which defines the interconnect of 
Data Terminal Equipment (DTE) and Data Communication 
Equipment (DCE). 
 
Data Rates
 
The user may select line speeds of 300, 600, 1200, 2400, 4800, 
9600, 19200 and 38400 baud. 
 
Default setting is for 9600 baud
 
.
 
Encoding
 
Asynchronous communication in the printers supports 7 or 
8-bit ASCII data. The string of data bits is encapsulated by 1 
Start bit, 1 or 2 Stop bits and may have an appended Parity 
bit. Parity (even, odd or none), the number of stop bits and 7 
or 8 bit data are selectable from the front panel UI. 
 
Default 
settings are for 8 bit data with 1 stop bit and parity none
 
.
 
Protocols
 
 XON/XOFF provides the software handshaking on the 
RS-422 interface. 
 
Robust XON/XOFF
 
 
 
is the default
 
.
 
Connections
 
The connector for the RS-422A interface is the 25 pin “D” 
Shell type. The use of short cables for interconnect is 
recommended. Cable length has been certified at 4 feet.
RS-422A Serial
Interface (CCITT
V.11 and X.27)
AUG-APPA  Page 12  Black,Cyan  Saturday, January 21, 1995 7:07 PM