Tekram Technology DC-820B Board Layout and Jumper Setting, Scsi Device Activity LED Indicator JP1

EISA Fast SCSI Caching Adapter

Chapter 1

HARDWARE SETUP

Before plugging the DC-820B into your system, make sure all jumpers on the card are correctly set according to instructions outlined in section 1.1. Also take care that the SCSI ID number (0-6) of each SCSI device is set properly for the host adapter (ID 7) (if necessary, check the user manuals for the respective devices). Correct cable connections and termination are also nec- essary for the adapters to function flawlessly. Refer to the following section, Board Layout and Jumper Setting, for the exact location and setting of jumpers.

1.1 Board Layout and Jumper Setting

The following figure illustrates the jumper and connector locations for the DC-820B.

JP1		TO LED	TO SPKER			TO FLOPPY DISK DRIVE
	1		1	JP2	C N 3
					1		Floppy Enable
					1
								F D C

TO SCSI DISK DRIVE

C N 2

1

A c tive

Te rm in a to r

A c tive

Te rm in a to r

J P3

C PU

D C - 8 2 0 B

A SI C

D C - 8 2 0 B

FIRMWARE.1

FIRMWARE.2

BIO S

F a s t

SC SI - I I

C h i p

8 2 3 55

B M I C

C N 1

E x t e r n a l

S C S I

C o n n e c t o r

SCSI Device Activity LED Indicator (JP1)

JP1 is used to indicate the activity of SCSI devices controlled by the DC- 820B and should be connected to the cable leading to HDD LED on the front panel of your system case. This LED also flashes some diagnostics codes right after power-up. Refer to Appendix C for more details.

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