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Appendix 4.2 parallel interface
Parallel interface works under IEEE1284 compatible mode.
Caution:
In the process of data transmission, the host computer should not ignore the Busy signal; otherwise the
print data may be lost;
Parallel interface signal adopts TTL level. Ensure the rise and fall time of host computer is not longer than
0.5s when it is used.
Appendix 4.3 USB interface
USB interface meets USB1.1 protocol standard and is optional.
USB interface transmits signal and power via a four–wire cable, as shown in the following figure:
Wire D+ and D- in figure appendix 4.3.1 are used for signal transmission, and the VBUS is +5V.
Appendix 4.4 Ethernet interface
Ethernet interface meets the standard communication protocol of 10/100M BASE-T in IEEE802.3 and is
optional.
PIN
Signal name
P1
P2
P3
P4
Pin
Definition
Description
1
Input
/STROBE
2
Input
Data0
3
Input
Data1
4
Input
Data2
5
Input
Data3
6
Input
Data4
7
Input
Data5
8
Input
Data6
9
Input
Data7
10
Output
/ACK
11
Output
BUSY
12
Output
PError
Table appendix 4.2-1 parallel signal list
Figure appendix 4.3-1 USB cable
Signal direction
TX+
TX-
RX+
Reserve
Pin
Definition
13
Output
14
Input
15
Not defined
16
-
17
-
18
-
19 ~ 30
-
31
Input
32
Output
33
-
34 ~ 35
Not defined
36
Input
Output +
Output -
Input +
——
- 25 -
Z5
DT
Description
SELECT
/AutoFd
NC
Logic
Ground
Chassis Ground
Vcc
Signal Ground
/Init
/Fault
Ground
/NC
/SelectIn
Function
Difference data signal output+
Difference data signal output-
Difference data signal input+
——
User's Guide
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