Seagate ST15150N Product Manual - Page 59

See to set the SCSI ID on ST15150N/ND drives - jumper setting

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ST15150N/ND/W/WD/WC/DC Product Manual, Rev. D 49 ST15150N J01 option jumpers Block Pins Function J01 1& 2 Terminator enable. 3 & 4 Terminator power to the SCSI bus. 5 & 6 Terminator power from the SCSI bus. 3 & 4 and Terminator power to the SCSI bus and drive. 5 & 6 4 & 6 Terminator power from the drive. ST15150ND J01 option jumpers ST15150N/ND J4 option jumpers J01 1& 3 - Terminator power to the SCSI bus. Host adapter or other device on the SCSI bus provides terminator power to the external terminator (no jumper on any of the J01 pins). J4 1 & 2 Spindle sync cable connector. Pin 1 is the SSREF+ or reference index signal. Pin 2 is Gnd. 3 & 4 Reserved. Default is no jumper. 5 & 6 Remote LED connector. Pin 5 is cathode (neg). Pin 6 is anode (pos). Pin 6 is current limited through a 1K ohm, 1/10W resistor. 7 & 8 Write Protect option. Jumper installed write protects the entire disc drive. Default is no jumper. 9 & 10 Delay Motor Start option. Jumper installed waits for 10 seconds for each target ID number before starting the spindle motor automatically. Default is no jumper. 11 & 12 13 & 14 15 & 16 17 & 18* 19 & 20* 21 & 22* Example: If target ID is equal to three (3) 3 x 10 = 30 Target spindle motor starts in thirty (30) seconds. Enable Motor Start option. Jumper installed causes the target to wait for the Start Unit command from the SCSI host. No jumper installed causes the unit to look at the Delay Motor Start jumper. Default is no jumper. Parity Disable option. Jumper installed causes parity checking and error reporting to be disabled. Default is no jumper. Reserved. Default is no jumper. SCSI ID selector 0 SCSI ID selector 1 SCSI ID selector 2 * See Figure 20 to set the SCSI ID on ST15150N/ND drives

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ST15150N/ND/W/WD/WC/DC Product Manual, Rev. D
49
Block Pins
Function
ST15150N
J01
1
&
2
Terminator enable.
J01 option jumpers
3
&
4
Terminator power to the SCSI bus.
5
&
6
Terminator power from the SCSI bus.
3
&
4 and
Terminator power to the SCSI bus and drive.
5
&
6
4
&
6
Terminator power from the drive.
ST15150ND
J01
1
&
3
Terminator power to the SCSI bus.
J01 option jumpers
—
Host adapter or other device on the SCSI bus provides
terminator power to the external terminator (no jumper on
any of the J01 pins).
ST15150N/ND
J4
1
&
2
Spindle sync cable connector.
J4 option jumpers
Pin 1 is the SSREF
+
or reference index signal.
Pin 2 is Gnd.
3
&
4
Reserved. Default is no jumper.
5
&
6
Remote LED connector. Pin 5 is cathode (neg). Pin 6 is
anode (pos). Pin 6 is current limited through a 1K ohm,
1/10W resistor.
7
&
8
Write Protect option. Jumper installed write protects the
entire disc drive. Default is no jumper.
9 & 10
Delay Motor Start option. Jumper installed waits for 10
seconds for each target ID number before starting the
spindle motor automatically. Default is no jumper.
Example:
If target ID is equal to three (3)
3 x 10 = 30
Target spindle motor starts
in thirty (30) seconds.
11
&
12
Enable Motor Start option. Jumper installed causes the
target to wait for the Start Unit command from the SCSI
host. No jumper installed causes the unit to look at the
Delay Motor Start jumper. Default is no jumper.
13
&
14
Parity Disable option. Jumper installed causes parity
checking and error reporting to be disabled. Default is no
jumper.
15
&
16
Reserved. Default is no jumper.
17
&
18*
SCSI ID selector 0
19
&
20*
SCSI ID selector 1
21
&
22*
SCSI ID selector 2
* See Figure 20 to set the SCSI ID on ST15150N/ND drives