Gasboy CFN Series Diagnostic Manual User Manual
Page 408
CFN Islander
13-40
12/26/02
Connectors
P1 – CPU Interface
Pinout
Pin
Function
Voltage
1
DC ground
DC gorund
2
D0 – Data 0
+5 VDC - On
3
DC ground
DC ground
4
D1 – Data 1
+5 VDC - On
5
DC ground
DC ground
6
D2 – Data 2
+5 VDC - On
7
N/C
N/C
8
D3 – Data 3
+5 VDC - On
9
N/C
N/C
10
D4 – Data 4
+5 VDC - On
11
N/C
N/C
12
D5 – Data 5
+5 VDC - On
13
N/C
N/C
14
D6 – Data 6
+5 VDC - On
15
N/C
N/C
16
D7 – Data 7
+5 VDC - On
17
N/C
N/C
18
A0 – Address 0
+5 VDC - On
19
N/C
N/C
20
N/C
N/C
21
DC ground
DC ground
22
A1 – Address 1
+5 VDC - On
23
N/C
N/C
24
RD – Read data
0 VDC - On
25
N/C
N/C
26
WD – Write data
0 VDC - On
P2 – DC Power Input
Pinout
Pin
Function
Voltage
1
+5 VDC
+5 VDC
2
DC ground
DC ground
P3 & P4 – Key Receptacle Interface
Pinout
Pin
Function
Voltage
1
N/C
N/C
2
+5 VDC
+5 VDC
3
DC ground
DC ground
4
N/C
N/C
5
Chip select
+5 VDC – Key on
6
Data in (to key)
+5 VDC - On
7
SK (clock)
+5 VDC - On
8
Data out (from key)
+5 VDC - On
9
N/C
N/C
10
Key in
0 VDC – key in receptacle