Table of Contents
Advertisement
Printer Port Connector
This 25-pin connector provides parallel printer data and control signals to and from the SBC board.
COM 2 Port Connector
This 10-pin connector transfers serial data to and from the COM 2 port.
PinSignal
1
2
3
4
5
6
7
8
9
10
Hard Disk Connector
This connector supplies hard disk drive signals which interface with the software I/O drivers to provide the read/write
functions.
46
15
Ground
16
Motor Enable 2 33
17
Ground
2
1
Figure A-5. Printer Port Connector
Pin
Description
1
-Strobe
2
+Data Bit 0
3
+Data Bit 1
4
+Data Bit 2
5
+Data Bit 3
6
+Data Bit 4
7
+Data Bit 5
8
+Data Bit 6
9
+Data Bit 7
2
1
Figure A-6. COM 2 Port Connector
Name (Direction)
Carrier Detect (Input)
Data Set Ready (Input)
Receive Data (Input)
Request To Send (Output)
Transmit Data (Output)
Clear To Send (Input)
Data Terminal Ready (Output)
Ring Indicator
Signal Ground
Unused
32
Select Head
Ground
34
/DCHNG
26
25
Pin
Description
10
-Acknowledge
11
+Busy
12
+Paper End
13
+Select
14
-Auto Feed
15
-Error
16
-Initialize Printer
17
-Select Input
18-25 Ground
10
9
MA6
Advertisement
Table of Contents
