Specifications
T4G Technical Reference
TRENTON Technology Inc.
1-16
C
ONNECTORS
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NOTE: Pin 1 on the connectors is indicated by the square pad on the PCB.
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P3
-
Floppy Drive Connector
34 pin dual row header, Amp #103308-7
Pin
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
Signal
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Pin
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
Signal
N-RPM
NC
D-Rate0
P-Index
N-Motoron 1
N-Drive Sel2
N-Drive Sel1
N-Motoron 2
N-Dir
N-Stop Step
N-Write Data
N-Write Gate
P-Track 0
P-Write Protect
N-Read Data
N-Side Select
Disk Chng
P4A -
Keyboard Header
5 pin single row header, Amp #640456-5
Pin
1
2
3
4
5
Signal
Kbd Clock
Kbd Data
Key
Kbd Gnd
Kbd Power (+5V fused) with self-resetting fuse
P5
-
Speaker Port Connector
4 pin single row header, Amp #640456-4
Pin
1
2
3
4
Signal
Speaker Data
Key
Gnd
+5V
