A.2 interface specifications – Compuprint 2056 User Manual
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User Manual 2056
MAN10xxx-01 52
A.2 Interface Specifications
Your printer can be equipped with a parallel interface, two USB interfaces, a serial
interface or an Ethernet interface. The printer switches automatically to the appropriate
interface when it receives data.
A.2.1 Parallel Interface
A.2.2 USB Interface
The following table provides the standardized contact terminating assignments by
number and color for Series “A” and Series “B” connectors of Full-speed USB 2.0.
A.2.3 Serial Interface
The characteristics of serial interface are as following:
Baudrate (bps): 1200 bps, 2400 bps, 4800 bps, 9600 bps, 19200 bps (selectable)
Word length:
7 or 8-bit (selectable)
Start bit:
1 bit
Parity bit:
Odd, even, or none (selectable)
Stop bit:
1 bit
Handshaking:
DTR protocol, X-ON/X-OFF protocol (selectable)
The parallel interface has the following characteristics:
Data format:
8-bit
Synchronization:
/STROBE pulse
Handshaking:
BUSY and /ACKNLG signals
Signal level:
TTL compatible
Contact Number
Signal Name
Color
1
VBUS
Red
2 D-
White
3 D+
Green
4 GND
Black
Figure A-1 Parallel interface connector pin
2 1
3 4
Figure A-2 USB-B type