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VSI-C2 Connector Pin Assignments

VSI-C2 Connector Pin Assignments

ALDL Connector
Pin Assignment
1
Secondary J1850 bus or UART pin L1
2 Diagnostic
Line
1
3 and 4 +12 VDC input
5
Diagnostic line 2
6 UART
pin
M
7
UART pin L2
8
Diagnostic line 0 (10K and 3.9K resistor capability)
9 No
Connection
10
Diagnostic line 3
11
UART pin E
12 No
Connection
13
12 V PWM Signal (Connected to Analog Input connector pin 12)
14
Primary J1850 bus
15
to 22 No Connection
23 Signal
Ground
24 Chassis
Ground
25
Diagnostic line 4

RS-232 Connector RS-232 Connector
Pin Assignment
1 No
Connection
2 RXD
3 TXD
4
DTR (low for normal operation, Pulsed high to reset VSI-C2)
5 Signal
Ground
6 DSR
7
RTS (high for normal operation, low to enable SXR transmitter)
8 CTS

9 No
Connection

A/D Input Connector A/D Input Connector
Pin Assignment
1
Analog Channel 1
2
Analog Channel 2
3
Analog Channel 3
4
Analog Channel 4
5
Analog Channel 5
6
Analog Channel 6
7
Analog Channel 7
8
Analog Channel 8
9 J1850
bus
10 UART
bus
11 No
Connection
12
Connected to pin 13 of the ALDL connector
13 and 14 Signal Ground
15
+12 VDC filtered output, 500 mA maximum supply



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