Function switch electrical, Description, Function switch versions – Z Microsystems ZX Station User Manual

Page 20: Locking the disk module and, Hard disk, Operation, Function switch electrical description, Locking the disk module and hard disk

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Document# 27-0007UM Issued 11/00 Rev. 1.0

20

Operation

FUNCTION SWITCH ELECTRICAL DESCRIPTION

The function switch has four positions:
• Two Read/Write (RW). The hard

disk can be fully accessed by the

host computer. There is no front

panel LED to indicate this position.

• Two Read-Only (RO). The orange

Read-Only LED will be lit.

NOTE: Refer to the TranzPak 6 User

Manual for details about

system operations.

NOTE: Some disk manufacturers

require that the power to the

disk be cycled after setting it

to a write-protect mode in

order to use the write-protect

feature. The only way to

determine if the disk requires

power-down to change to

Read-Only is to turn the

function switch to a RO

position, then try to write to

the disk.

FUNCTION SWITCH VERSIONS

The function switch has two modes:
• Handle locked
• Handle unlocked
The function switch also has two

versions:
• Knob
• Key lock
The switch functions identically in

both versions. The only difference is

that with the key lock version, a key is

required to be inserted into a lock in

order to change the position of the

switch.

LOCKING THE DISK MODULE AND HARD DISK

On the disk module front panel on

each side of the word SECURITY

there are small padlock icons.
The left icon indicates an unlocked-

handle mode when the function switch

is in one of its two left positions (either

RW or RO). The right icon indicates a

locked-handle mode when the

function switch is in one of its two right

positions (either RW or RO).

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