HP MSR4000 Router Series Installation Guide

5
• Install a special lightning arrester at the input end of outdoor signal lines (for example, E1/T1 line)
to which interface modules of the router are connected to enhance the lightning protection
capability.
Rack-mounting
Before mounting the router in a rack, adhere to the following requirements:
• The rack is equipped with a good ventilation system.
• The rack is sturdy enough to support the router and its accessories.
• For heat dissipation and device maintenance, make sure the front and rear of the rack are at least
0.8 m (2.62 ft) away from walls or other devices, and the headroom in the equipment room is no
less than 3 m (9.84 ft).
Installation accessories
Pre-installation checklist
Table 5 Pre-installation checklist
Item Re
q
uirements Result
Installation site Ventilation
• There is a minimum clearance of 10 cm (3.94 in)
around the inlet and outlet vents for heat
dissipation of the router chassis.
• A good ventilation system is available at the
installation site.