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24 pin DZM 12 DREH connector layout
24 pin DZM 12 DREH connector
Pin Name
1 System Ground
2 Luminance (TTL)
3 IEEE-SRQ
4 IEEE-EOI
5 Diagnostic Sense
6 Cass.1 Read
7 Cass.2 Read
8 Diag Tape Wrt.
9 Vertical Sync (TTL)
10 Horizontal Sync (TTL)
11 GND
12 GND
A GND
B CA1
C PB0
D PB1
E PB2
F PB3
H PB4
J PB5
K PB6
L PB7
M PA2 (CB2)
N GND

Signal level of 2, 9 and 10 is TTL (like MGA/CGA Video in IBM PC).


 

According to 1 reports in our database (0 positive and 0 negative) the Commodore PET Parallel User port pinout may be incorrect.

Is this pinout
Source(s) of this and additional information: Commodore PET FAQ
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