User`s manual

EC-520 User’s Manual
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5.2.3 USB Interface
1. The USB interface connector is USB-B type (as shown by figure 5-4):
2. The connecting figure of printer and computer with USB interface (as shown in figure 5-5).
USB Interface is 2.0 Full-Speed interface, and displayed as an USB port in the computer
finally. You can use the USB Interface to print by selecting corresponding USB port.
5.2.4 Serial Interface
(1) Serial interface is RS-232 type and the connector type is DB-25.
The DB-25 connector is shown as Figure 5-6.
(2) Connecting figure of printer and computer with serial interface
The figure is shown as follows:
Figure 5-7 connecting figure of printer and computer with serial interface
Host computer’s 9PIN connector
Print
e
r’
s
2
5
PIN
co
nn
ec
t
or
DTR
GND
TXD
RXD
DSR
DCD
CTS
GND
RXD
TXD
20
7
2
3
5
2
3
6
1
8
Figure 5-6 pin’s NO. of the serial interface connector
Figure 5-4 USB-B type connector
Figure 5-5 connecting figure of printer and computer with USB interface
Printer’s 26PIN connector
PDIUSBD12 chip USB-B connector