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Hawk 2 (Wide bus) Family Install Guide, Rev. C
[4] The drive time-shares the ID and LED/SSP functions of
J6 and J1-auxiliary. That is, a cable may be attached to
one of these headers to pick up the synchronized
spindle reference signal (SSP) and three signals that
light external LED indicators. If lines for external ID
selection are not also included in the cable, jumper
plugs must be used on the header not having a cable
connected in order to establish drive ID. The drive reads
the ID from J6 and J1-auxiliary for 250 ms after power-
on or drive reset, and then uses these headers for the
LED and SSP functions the remainder of the time. Host
system documentation should describe the application
of the three LED indicators if it connects a cable to use
this option.
[5] Hawk 2 family model ST12400W and ST11900W only.
[6] Applies to Hawk 2 family ST12400 and ST11900 W and
WD models only.
[7] Applies to Hawk 2 family ST12400WC and ST11900WC
models only.
29
J2
Jumper.
Position Jumper Function Description
RES
Off/On Reserved. Default is no jumper installed.
DS ME
Off Off Spindle starts immediately after power up - De-
fault setting.