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10 28
ACK
Printer
→
Host
11 29
BUSY
Printer
→
Host
12 30 PE
Printer
→
Host
13 —
SELECT
Printer
→
Host
14 —
AUTO
FEED
Printer
←
Host
15 — NC
NC
16 —
SIGNAL
GND
Printer
↔
Host
17 —
CHASSIS
GND
Printer
↔
Host
18 —
+5V
Printer
→
Host
31 —
PRIME
Printer
←
Host
32 —
ERROR
Printer
→
Host
33 —
SIGNAL
GND
Printer
↔
Host
34 — NC
Printer
→
Host
35
—
PULLED UP 5V
Printer
→
Host
36 —
SELECTIN
Printer
←
Host
7.2.2 USB Interface
USB 2.0 Full-Speed
The following table provides the standardized contact terminating assignments by number and electrical
value for Series “A” and Series “B” connectors.
Contact Number
Signal Name
Colour
1 VBUS
Red
2 D- White
3 D+
Green
4 GND Black
7.2.3 Ethernet Interface
10/100Base-T Ethernet interface, it can connect to 10/100M Ethernet.
Figure7-3 USB-B Type connector
Figure 7-4 Ethernet Interface
2 1
3 4