Western Digital WDE4360 Option Block Pin Assignments, OPTION/SIGNAL Pins Configuration Notes

WD Enterprise WDE2170/WDE4360 The Option Block

5.3.Option Block Pin Assignments

The option block is used to modify the drive characteristics. The table below shows the pin numbers that correspond to each option or signal, and provides instruction for enabling and disabling these features. Refer to the WD Enterprise Installation Guide (document number 4079-001046) for option definitions.

Table 5-1. Option Block Pin Assignments

OPTION/SIGNAL	PINS		CONFIGURATION NOTES
SCSI IDs	1	- 8	Set according to Table 5-2.
(KEY)/LED-	X - 10		X - no pin/10 - LED cathode connection
RESERVED	11	- 12	11 - Ground/12 - Reserved
OPT 1: DISABLE AUTO START	13	- 14	Install jumper to disable auto start.
OPT 2: AUTO START DELAY	15	- 16	Install jumper to enable auto start delay.
OPT 3: SCAM	17	- 18	Install jumper to enable SCAM.
OPT 4: DISABLE UNIT ATTENTION	19	- 20	Install jumper to disable unit attention.
OPT 5: DISABLE TARGET INITIATED	21	- 22	Install jumper to disable target initiated
SYNCHRONOUS/WIDE NEGOTIATION			synchronous/wide negotiation.
OPT 6: SCSI TERMINATION	23	- 24	Install jumper to enable SCSI termination.
TXD/RXD	25	- 26	Reserved
TPWR/+5V	27	- 28	Install jumper to enable TERMPWR on the
			SCSI bus.
LED+/+5V	29 - 30		29 - LED anode connection/30 - Reserved
+12R/+12R	31	- 32	Reserved
+12V/+12V	33	- 34	Reserved

Note: Pins 1,3,5,7,11,13,15,17,19,21, and 23 are ground.

4079-001045 Rev. B RELEASED 04-08-97 29