Lenovo PC 300GL Technical Information Manual 6272, 6282 - Page 49

Serial Port Connectors, Parallel Port Connector

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Appendix A. Connector Pin Assignments Serial Port Connectors 1 5 6 9 Figure 41. Serial Port Connectors Pin Assignments Pin Signal I/O Pin 1 Data carrier detect I 2 3 Transmit data# O 4 5 Ground NA 6 7 Request to send O 8 9 Ring indicator I Signal I/O Receive data# I Data terminal read O Data set ready I Clear to send I Parallel Port Connector 13 1 25 14 Figure 42. Parallel Port Connector Pin Assignments Pin Signal I/O Pin 1 STROBE# I/O 2 3 Data bit 1 I/O 4 5 Data bit 3 I/O 6 7 Data bit 5 I/O 8 9 Data bit 7 I/O 10 11 BUSY I 12 13 SLCT I 14 15 ERROR# I 16 17 SLCT IN# O 18 19 Ground NA 20 21 Ground NA 22 23 Ground NA 24 25 Ground NA Signal I/O Data bit 0 I/O Data bit 2 I/O Data bit 4 I/O Data bit 6 I/O ACK# I PE I AUTO FD XT# O INIT# O Ground NA Ground NA Ground NA Ground NA Appendix A. Connector Pin Assignments 37

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Appendix A.
Connector Pin Assignments
Serial Port Connectors
1
5
6
9
Parallel Port Connector
13
1
25
14
Figure 41. Serial Port Connectors Pin Assignments
Pin
Signal
I/O
Pin
Signal
I/O
1
Data carrier detect
I
2
Receive data#
I
3
Transmit data#
O
4
Data terminal read
O
5
Ground
NA
6
Data set ready
I
7
Request to send
O
8
Clear to send
I
9
Ring indicator
I
Figure 42. Parallel Port Connector Pin Assignments
Pin
Signal
I/O
Pin
Signal
I/O
1
STROBE#
I/O
2
Data bit 0
I/O
3
Data bit 1
I/O
4
Data bit 2
I/O
5
Data bit 3
I/O
6
Data bit 4
I/O
7
Data bit 5
I/O
8
Data bit 6
I/O
9
Data bit 7
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
37