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Appendix E: HostRAID Controller LED and I2C Connector Reference ● 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
2LED OUT 1-PORT 1 Cathode
3LED OUT 2-PORT 2 Cathode
4LED OUT 3-PORT 3 Cathode