DEC 600 Installation And Service Manual page 30

If the DECNIS 600 support brackets do not fit your rack, you can use brackets
or shelving supplied with your rack. However, make sure that:
• The rack brackets or shelves do not extend underneath the DECNIS 600
unit and block the vents on the bottom of the unit:
2–6 Installing the DEC Network Integration Server 600
LKG–5640–91I