LSI MegaRAID Express 500 - Manual (Page 68)

MegaRAID Express 500 Hardware Guide 54
Step 5 Set Jumpers, Continued
J1 Termination Enable J1 is a three-pin header that specifies hardware or software control of SCSI
termination.
Type of SCSI Termination J10 Setting
Software control of SCSI termination via drive detection. Short Pins 1-2
Permanently disable all onboard SCSI termination. Short Pins 2-3
Permanently enable all onboard SCSI termination. OPEN
J9 I2C Interface Connector J9 is a four-pin header that allows the i960JX core processor to serve as a
master and slave device that resided on the I2C bus when used with the I2C Bus Interface
Unit. Attach a four-wire cable from J9 to the I2C Bus Interface Unit.
Pin Description
1 SDA
2 GND
3 SCL
4 VCC
J5 Serial Port J5 is a 3-pin berg that attaches to a serial cable. The pinout is:
Pin Signal Description Pin Signal Description
1 RXD 2 TXD
3 GND
Cont’d