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3-4

Cabling and Configuration

Setting Dual VEM Enable/Disable

This switch enables Dual VEM to be Enabled or Disabled for a shelf. In a single

shelf configuration the Dual VEM Enable/Disable switch must be set to Disabled.

In a dual shelf (daisy-chained) configuration the Dual VEM Enable/Disable

switch must be set to Enabled. The switch is located at the rear of the shelf (see

Figure 3-3). To set shelf to Enabled the switch should be set to “2”. To set the

shelf to Disabled the switch should be set to “0 or 1”.

Figure 3-3. Dual VEM Enable/Disable Switch Location

Mute

Temp

SCSI Out

SCSI In

LV D

PSU 2

PSU 1

Dual VEM Enable/Disable

VEM

Host

Shelf

2 0/1 12

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 50 51

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Adaptec RS Series Guide de l'utilisateur Page 28