J17 I2C Connector

J17 is a 4-pin header. Table 9-9 displays the J17 pinout.

Ta b l e 9 - 9 . J 1 7 I 2 C C o n n e ct or P i n o u t

Pin Description

1Data

2GND

3Clock

4Power (fused)

Step 4—Set SCSI Termination

Each PERC 3/DC or PERC 3/DCL SCSI channel can be individually configured for termination enable mode by setting the J2 and J3 jumpers. You must terminate the SCSI bus properly. Set termination at both ends of the SCSI cable. The SCSI bus is an electrical transmission line and must be terminated properly to minimize reflections and losses. Termination should be set at each end of the SCSI bus, as shown in the figures.

Terminating Internal SCSI Disk Arrays

Set the termination so that SCSI termination and termination power are intact when any disk drive is removed from a SCSI channel, as shown in Figure 9-4.

PERC 3/DC or PERC 3/DCL Hardware Installation

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Dell 3 manual J17 I2C Connector, J17 is a 4-pin header. -9 displays the J17 pinout, 125