Adaptec 1420SA Manual De Usuario
Appendix E: HostRAID Controller LED and I2C Connector Reference
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90
J2—I2C Connector
J3—Aggregate LED Header
J4—Activity LED Connector
Adaptec 1420SA Activity LED and I2C Connector Specification
J2—LED Connector
Note:
Board circuitry supports common anode backplane implementations.
Pin Number
Signal
Description
1
TWSISDA
I2C Data
2
GND
Ground
3
TWSISCK
I2C Clock
Pin Number
Signal
Description
1
LED_SUM
Aggregate Cathode
2
+3.3V
Aggregate Anode
Pin Number
Signal
Description
22-55-2081
1
ACT_LED3-
PORT 3 Cathode
2
2
+3.3V
PORT 3 Anode
1
3
ACT_LED2-
PORT 2 Cathode
4
4
+3.3V
PORT 2 Anode
3
5
ACT_LED1-
PORT 1 Cathode
6
6
+3.3V
PORT 1 Anode
5
7
ACT_LED0-
PORT 0 Cathode
8
8
+3.3V
PORT 0 Anode
7
2170200EU-R
AAR-1420SA/EFIGS RoHS KIT
2170200JA-R
AAR-1420SA/JA RoHS KIT
2170200-R
AAR-1420SA RoHS KIT
2170500-R
AAR-1420SA RoHS Single
Pin Number
Signal
Description
1
LED OUT0-
PORT 0 Cathode
2
LED OUT 1-
PORT 1 Cathode
3
LED OUT 2-
PORT 2 Cathode
4
LED OUT 3-
PORT 3 Cathode