7. Connection Diagram
Oki Data CONFIDENTIAL
44983601TH Rev.1
7-3 /
• USB1 Connector Pin Allocation
(Connection to USB I/F)
Pin No. I/O
Signal
Function
1
I
vbus
Power
2
I/O
D-
Serial Data
3
I/O
D+
Serial Data
4
C
GND
Logic Ground
• LAN Connector Pin Allocation
(Connection to LAN I/F)
Pin No. I/O
Signal
Function
1
O
TXD+
Transmission
2
O
TXD-
Transmission signal -
3
I
TXCT
Transmission midpoint
4
-
NC
Not used
5
-
NC
Not used
6
I
RXCT
Reception midpoint
7
I
RXD+
Reception
8
I
RXD-
Reception signal -
9
I
LLED_A
LED supply voltage
10
I
LLED_K
LED ON signal
11
I
RLED_K
LED ON signal
12
I
RLED_A
LED supply voltage
• CENT Connector Pin Allocation
(Connection to the Centronics I/F)
Pin No. I/O
Signal
Function
1
19
1
I
STB-N
Strobe
2
20
2
C
DATA0-P
Data bit 0
3
21
3
C
DATA1-P
Data bit 1
4
22
4
C
DATA2-P
Data bit 2
5
23
5
C
DATA3-P
Data bit 3
6
24
6
C
DATA4-P
Data bit 4
7
25
7
C
DATA5-P
Data bit 5
8
26
8
C
DATA6-P
Data bit 6
9
27
9
C
DATA7-P
Data bit 7
10
28
10
O
ACK-N
Acknowledge
11
29
11
O
BUSY-P
Busy
12
30
12
O
PE-P
Paper End
13
31
13
O
SEL-P
Select
14
32
14
I
AUTOFEED-N Auto Feed
15
33
15
-
NC
Not connected
16
34
16
C
SG
Logic Ground
17
35
17
C
FG
Chassis Ground
18
36
18
O
HILEVEL
High Level
19
C
SG
Logic Ground
20
C
SG
Logic Ground
21
C
SG
Logic Ground
22
C
SG
Logic Ground
23
C
SG
Logic Ground
24
C
SG
Logic Ground
25
C
SG
Logic Ground
26
C
SG
Logic Ground
27
C
SG
Logic Ground
28
C
SG
Logic Ground
29
C
SG
Logic Ground
30
C
SG
Logic Ground
31
I
IPRIM-N
I Prime
32
O
FAULT-N
Fault
33
C
SG
Logic Ground
34
NC
Not connected
35
O
HILEVEL
High level
36
I
SELIN-N
Select-IN