Function Switch Electrical Description

Operation

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.

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.

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

NOTE: Refer to the TranzPak 6 User Manual for details about system operations.

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).

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