VAR4 – Installation Guide
Issue: 02 complete, approved
Page 7 of 20
Recommended Installation Procedure
!
!
Please read and observe the instructions and guidelines in Section “5 Safety and Precautions” (page 17)
prior to installation. Failure to follow these instructions and guidelines may cause personal injury and/or
damage to the equipment.
1.
Fit the VAR4 into a 19-inch standard equipment rack on supporting rails, and secure the unit in
position using the fixing screws and washers provided; see Figure 1.
!
!
Ensure that there is at least 1U of ventilated space between the unit and any source of heat (e.g.
Amplifier Mainframes).
Figure 1
Installing the VAR4 into the rack
1U
1U
1U
VENTILATION PANEL
VENTILATION PANEL
VAR4
SUPPORTING RAILS MUST BE USED.
ENSURE 1U VENTILATION
PANELS ARE FITTED ABOVE
AND BELOW THE EQUIPMENT.
DO NOT OBSTRUCT
VENTILATION HOLES.
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!
!
!
GENERIC 19-INCH 1U FORMAT
M6 POZIDRIV SCREW
M6 PLAIN WASHER
M6 CAGE NUT
2.
Set the rear-panel EARTH LIFT switch to the ‘grounded’ position (
, ON); see Figure 2.
!
!
Only set the EARTH LIFT switch to the ‘ungrounded’ position (
, OFF) if a +ve ground battery
supply is used.
Figure 2
Setting the Earth Lift switch
EARTH LIFT SWITCH: ON
(RIGHT-HAND SIDE POSITION)
