Compuprint 9058 Programmer Manual - Manual (Page 141)

The Serial Interface
A78408098-003 C.12
The Serial Interface
This printer provides the RS-232/C and RS-422/A serial interfaces.
The interface mode is selected via menu.
• Transmission Type
Data is sent and received in start/stop (asynchronous)
transmission.
• Character Format
Each character is transmitted in the following format:
1 START BIT + 8 DATA BITS + 1 PARITY BIT + 1 STOP BIT
The least significant bit of the data bits is sent first after the start
bit. The number of data bits is selected via menu. The parity bit,
when present, follows the data bits. The start bit is a logical "0"
and the stop bit is a logical "1". The start and stop bits are used as
character framing bits.
•
Printer Connector
Male DB25 or equivalent connector.
•
Drive Capability
max. 50 feet (15 m) for all supported data rates. The RS-422/A
interface is effective up to 1200 m.