Patton electronics ParaLink 1225 User Manual page 7

APPENDIX B
PATTON MODEL 1225 PARALLEL PIN CONFIGURATIONS
SOURCE TRANSMITTER / RECEIVER (DB-25)
Common Return / Ground -25
Common Return / Ground -24
Common Return / Ground -23
Common Return / Ground -22
Common Return / Ground -21
Common Return / Ground -20
Common Return / Ground -19
Common Return / Ground -18
Printer Error (Fault - Active LOW)
DIRECTION RECEIVER (CENTRONICS)
-36
-35
-34
-33
Printer Fault (Active Low) -32
-31
-30
-29
-28
-27
-26
-25
-24
-23
-22
-21
-20
-19
SOURCE
13- Select (Active HIGH) Printer
12- Paper End (Active HIGH) Printer
11- Busy (Active HIGH) Printer
10- Acknowledge (Active LOW) Printer
9- Data Bit 8 (MSB) Computer
8- Data Bit 7 Computer
7- Data Bit 6 Computer
6- Data Bit 5 Computer
5- Data Bit 4 Computer
4- Data Bit 3 Computer
3- Data Bit 2 Computer
2- Data Bit 1 (LSB) Computer
1- Data Strobe (Active LOW) Computer
DIRECTION
18- (+) 5 Volts Printer
17- Chassis Ground Common
16- Logic Ground Common
15-
14-
13- Select (Active HIGH) Printer
12- Paper End (Active HIGH) Printer
11- Busy (Active HIGH) Printer
10- Acknowledge (Active High) Printer
9- Data Bit 8 (MSB) Computer
8- Data Bit 7 Computer
7- Data Bit 6 Computer
6- Data Bit 5 Computer
5- Data Bit 4 Computer
4- Data Bit 3 Computer
3- Data Bit 2 Computer
2- Data Bit 1 (LSB) Computer
1- Data Strobe (Active LOW) Computer
11
APPENDIX C
PATTON MODEL 1225 BLOCK DIAGRAM
(Transmitter)
12