User`s guide

12 • ACLD-9182A
Where
Vin : Input voltage
IF: Input current
Pw : Power rating
Ri : Current Limit resistor
For example:
If the input voltage is 40V, then the maximum input current is within
20mA, using the above formula :
Ri = 40 (V) / 20 (mA) = 2 K Ω
Pw = 40 (V) X 20 (mA) = 0.8 W
You should choose a 2K Ω resistor and the power rating of this resistor
should be 1 Watt.
2.4 Connector Pin Assignments
The relationship between connector CN1's pins (below), terminal blocks
(TB1 & TB2), LED's, and their related jumpers are shown in the following
table :
CN1 PIN
NO.
D/I
Channel
TB1 & TB2
LABEL
LED
NO.
RELATED
JUMPER
1 DI 0 TB1 0+,0- 0 JA0, JB0
2 DI 1 TB1 1+,1- 1 JA1, JB1
3 DI 2 TB1 2+,2- 2 JA2, JB2
4 DI 3 TB1 3+,3- 3 JA3, JB3
5 DI 4 TB1 4+,4- 4 JA4, JB4
6 DI 5 TB1 5+,5- 5 JA5, JB5
7 DI 6 TB1 6+,6- 6 JA6, JB6
8 DI 7 TB1 7+,7- 7 JA7, JB7
9 DI 8 TB2 8+,8- 8 JA8, JB8
10 DI 9 TB2 9+,9- 9 JA9, JB9
11 DI 10 TB2 10+,10- 10 JA10, JB10
12 DI 11 TB2 11+,11- 11 JA11, JB11
13 DI 12 TB2 12+,12- 12 JA12, JB12
14 DI 13 TB2 13+,13- 13 JA13, JB13
15 DI 14 TB2 14+,14- 14 JA14, JB14
16 DI 15 TB2 15+,15- 15 JA15, JB15
17 GND
18 GND
19 +5V
** 20 +12V