This is the cable configuration to connect an Apple III Universal Parallel
Interface card to a C.Itoh 8510A printer.
Universal Parallel Interface C.Itoh 8510A
Pin Function Pin Function
1 Shield Ground 17 Chassis Ground
2 Acknowledge 10 Acknowledge
3 Not used - Not connected
4 Not used - Not connected
5 Not used - Not connected
6 Printer in check 32 Fault
7 Not used - Not connected
8 Strobe out 1 Strobe in
9 Printer empty 12 Printer empty
10 Data bit 0 (LSB) 2 Data bit 0
11 Data bit 1 3 Data bit 1
12 Data bit 2 4 Data bit 2
13 Data bit 3 5 Data bit 3
14 Data bit 4 6 Data bit 4
15 Data bit 5 7 Data bit 5
16 Data bit 6 8 Data bit 6
17 Data bit 7 (MSB) 9 Data bit 7
18 Printer on-line 18 Select
19 Printer Power-on 19 +5 volt
20 Signal Ground 16 0 volt
Apple III Universal Parallel Printer driver configuration block:
ERRMASK: E8
ERRSTAT: C8
AUTOLF: 40
CTRLWRD: 00
TIMEOUT: 0A
C.Itoh 8510A Switch selection:
Switch one: Switch two:
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
0 1 0 0 0 1 1 1 0 0 0 0 0 0 1 0