22
Uni-3 Technical Manual
2.4
Electric Signals
2.4.1
Main Board
No.
Signal Name
Direction
Opposite Side
1
TX+
<-->
LAN
2
TX-
<-->
3
RX+
<-->
4
Not Connected
5
Not Connected
6
RX-
<-->
7
Not Connected
8
Not Connected
Table 2-5. XJ1
No.
Signal Name
Direction
Opposite Side
1
Unused
Cash Drawer
2
DC+24V for drawer
-
3
GND for drawer
-
4
Unused
Table 2-6. XJ2
No.
Signal Name
Direction
Opposite Side
1
DC+5V
-
Wireless LAN
2
GND
-
Table 2-7. XJ5
No.
Signal Name
Direction
Opposite Side
1
GND
-
XJ7: Customer side
display (L2)
XJ8: Operator side
display (L2)
2
DC+5V
-
3
RESET#
-->
4-6
E1, E2, E3
-->
7
R/W
-->
8
A0
-->
9-16
LCD data signal
D0-D7
-->
17
LED ANODE (Y/G)
-
18, 20
Not connected
19
LED CATHODE (Y/G)
-
Table 2-8. XJ7,8
No.
Signal Name
Direction
Opposite Side
1
DC+24V
-
Back light register (L2)
2
DC+24V for LCD (L2)
-
Table 2-9. XJ9
No.
Signal Name
Direction
Opposite Side
1
DC+24V main power
supply
-
Switching power
supply
2
GND
-
Table 2-10. XJ10
No.
Signal Name
Direction
Opposite Side
1
DC+5V
-
Thermal head
2
GND
-
3, 4, 6,
10, 27
Thermal head
control signal
-->
5, 7-9, 28
Not connected
11, 12
Thermistor input
signal
<--
13-19
GND
-
20-26
DC+24V for
thermal head
-
Table 2-11. XJ11
No.
Signal Name
Direction
Opposite Side
1
1A
-->
Stepping motor
for label feeding
2
1B
-->
3
2A
-->
4
2B
-->
Table 2-12. XJ12
No.
Signal Name
Direction
Opposite Side
1
DC+3.3V
-
Label sensor
2
VCC for LED
-->
3
GND
-
4
Sensor in
<--
5
Not connected
Table 2-13. XJ16
No.
Signal Name
Direction
Opposite Side
1
DC+5V for peel sensor
-
Peel sensor
2
GND
-
3
DC+3.3V
-
4
Sensor in
<--
Table 2-14. XJ17
No.
Signal Name
Direction
Opposite Side
1-8
Key scanning
KS0-KS7
-->
Tactile keyboard
PS-068 (B/P/EV)
PS-037
9-23
Key data
KD0-KD14
<--
24-26
Not connected
Table 2-15. XJ18
