Dell 3 - Manual (Page 125)

PERC 3/DC or PERC 3/DCL Hardware Installation 123
J10 NVRAM Clear
J10 is a 2-pin connector used to clear the memory from the NVRAM, which
stores RAID configuration information. Table 9-4 displays the pinout for
J10.
J11 Serial Port
J11 is a 3-pin header that attaches to a serial cable. Table 9-5 and Figure 9-3
display the pinout.
F i g u r e 9 - 3 . J 1 1 S e r i a l P o r t P i n o u t
J13 Dirty Cache LED
J13 is a two-pin connector for an LED mounted on the computer enclosure.
The LED indicates when the data in the cache has yet to be written to the
storage devices. Table 9-6 displays the J13 pinout.
Ta b l e 9 - 4 . J 1 0 N V R A M C l e a r P i n o u t
Pin Description
1 Signal
2 GND
Ta b l e 9 - 5 . J 1 1 S e r i a l P o r t P i n o u t
Pin Description
1 Receive data
2 Transmit data
3 Ground
J11
3 Ground
2 Transmit Data
1 Receive Data