IBM C1B 1.12 Brick On Sled Carrier 128-pin HPC, C1C 1.12 3.5-inch Small FF 38-pin Unitized, C2B 2.25 Brick On Sled carrier 128-pin HPC, C4B 4.51 Brick On Sled carrier 128-pin HPC, C4C 4.51 3.5-inch Small FF 38-pin Unitized, SSA 5.5.4 - Write Protect (Option Port Pin 4), 5.5.5 - Ground long (Option Port Pin 5), 5.5.6 - Device Activity Pin/Indicator (Option Port Pin 6), 5.5.7 + 5V (Option Port Pin 7), 5.5.8 - Device Fault Pin/Indicator (Option Port Pin 8)

USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS

OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB -1.0" HIGH

The width, period, and tolerance of the negative active Sync pulse is manufacturer dependent, and thus syn-

chronization across different manufacturers or even different product lines of the same manufacturer isnot

guaranteed. The Sync pin usage is con trolled by mode pages within the mode select command.

This pin is not accessible on CxB model.

5.5.4 - Write Protect (Option Port Pin 4)

a low active input pin, that when active (pulled below 0.8 V), the drive will prohibit commands that alter the

customer data area portion of the the media from being performed. The state ofthis pin is monitored on a

per command basis. Refer to "Option pins" section of the Ultrastar XP (DFHC) SSA Models Interface

Specification for a detailed functional description of this pin.

This pin is not accessible on CxB models.

5.5.5 - Ground long (Option Port Pin 5)

The Ground longoutput pinon CxC and CxBmodels shall be capable of syncing 1.0 Amp of current. This

pin is longer than any others in the option block to allow for the ground to mate first o r last in a hot-plug or

hot-unplug situation.

5.5.6 - Device Activity Pin/Indicator (Option Port Pin 6)

A low active LE D output pin on CxC modelscan be used to drive a n external Light Emitting Diode. CxB

models have an integrated Green LED. Refer to the "Option Pins" section of the Ultrastar X P (DFHC)

SSA Models Interface Specification for a detailed functional description of this pin/LED.

CxC models provide up to 24 mA of TT L level LED sink current capability. Current limiting for the LED

is provided on the electronics card. The anode may be tied to t he +5 V power source (provided on the the

unitized connector). The LE D Cathode is then connected to the Device Activity pin to complete the circuit.

5.5.7 + 5V (Option Port Pin 7)

The +5Voutput pin on CxC and CxB modelsshall supply u p to 1.0 Amp of current limited +5 V (+/-

10%), as long aspower issupplied to t he device.

5.5.8 - Device Fault Pin/Indicator (Option Port Pin 8)

The Device Fault pin on CxC models can be used to drive an external Light Emitting Diode. CxB models

have an integrated Amber LED. Refer t o the "Option Pins" section of the Ultrastar XP (DFHC) SSA

Models Interface Specification for a detailed functional description of this pin/LED.

CxC models provide up to 24 mA of TT L level LED sink current capability. Current limiting for the LED

is provided on the electronics card. The anode may be tied to t he +5 V power source (provided on the the

unitized connector). The LE D Cathode is then connected to the Device Fault pin to complete the circuit.

Source filename=ELECTRIC IBM Corporation Page 67 of 87

IBM 5.5.4 - Write Protect (Option Port Pin 4), 5.5.5 - Ground long (Option Port Pin 5), 5.5.6 - Device Activity Pin/Indicator (Option Port Pin 6), 5.5.7 + 5V (Option Port Pin 7), 5.5.8 - Device Fault Pin/Indicator (Option Port Pin 8)