Appendix A. Connector Pin Assignments
USB Connectors
4
3
2
1
Figure 10. USB Connector
The external interface for the USB ports consists of two, 4-pin connectors.
Parallel Port Connector
13
1
25
14
Figure 11. Parallel Port Connector
The external interface for the parallel port is a 25-pin, female, D-shell connector.
Table 44. Pin Assignments for the USB Connectors
Pin
Signal Name
I/O
1
VCC
NA
2
-Data
I/O
3
+Data
I/O
4
Ground
NA
Table 45. Pin Assignments for the Parallel Port Connector
Pin
Signal Name
I/O
Pin
Signal Name
I/O
1
STROBE#
I/O
2
D0
I/O
3
D1
I/O
4
D2
I/O
5
D3
I/O
6
D4
I/O
7
D5
I/O
8
D6
I/O
9
D7
I/O
10
ACK#
I
11
BUSY
I
12
PE
I
13
SLCT
I
14
AUTO FD XT#
O
15
ERROR#
I
16
INIT#
O
17
SLCT IN#
O
18
Ground
NA
19
Ground
NA
20
Ground
NA
21
Ground
NA
22
Ground
NA
23
Ground
NA
24
Ground
NA
25
Ground
NA
Appendix A. Connector Pin Assignments
49