6
•
Install a surge protector 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.
NOTE:
For how to install a lightning protector and surge protector, see "
Connecting the AC power supply to
a power strip with lightning protection
" and "
Installing a surge protector (optional)
."
Space
For easy installation and maintenance, follow these space requirements:
•
Reserve a minimum of 1 m (3.28 ft) of clearance between the rack and walls or other devices.
•
For heat dissipation, make sure the headroom in the equipment room is not less than 3 m (9.84
ft).
•
Make sure the rack has enough space to accommodate the router. See
for rack
requirements. For more information about chassis dimensions, see "
."
Table 7 Router dimensions and rack requirements
Model
Chassis dimensions
Rack requirements
SR6604 AC
SR6604 DC
•
Height
—220 mm (8.66 in)/5 RU
•
Width
—436 mm (17.17 in)
•
Depth
—576 mm (22.68 in)
{
480 mm (18.90 in) for the chassis
{
95 mm (3.74 in) for the cable
management brackets at the chassis
front
{
11 mm (0.43 in) for the grounding screw
at the chassis rear
•
A minimum of 0.8 m (2.62 ft) in
depth (recommended)
•
A minimum of 95 mm (3.74 in)
between the front rack posts and
the front door
•
A minimum of 481 mm (18.94 in)
between the front rack posts and
the rear door
SR6608 AC
SR6608 DC
•
Height
—308 mm (12.13 in)/7 RU
•
Width
—436 mm (17.17 in)
•
Depth
—576 mm (22.68 in)
{
480 mm (18.90 in) for the chassis
{
95 mm (3.74 in) for the cable
management brackets at the chassis
front
{
11 mm (0.43 in) for the grounding screw
at the chassis rear
•
A minimum of 0.8 m (2.62 ft) in
depth (recommended)
•
A minimum of 95 mm (3.74 in)
between the front rack posts and the
front door
•
A minimum of 481 mm (18.94 in)
between the front rack posts and the
rear door
SR6608-DS
•
Height
—308 mm (12.13 in)/7 RU
•
Width
—436 mm (17.17 in)
•
Depth
—576 mm (22.68 in)
{
480 mm (18.90 in) for the chassis
{
95 mm (3.74 in) for the cable
management brackets at the chassis
front
{
11 mm (0.43 in) for the grounding screw
at the chassis rear
•
A minimum of 0.8 m (2.62 ft) in depth
(recommended)
•
A minimum of 95 mm (3.74 in)
between the front rack posts and the
front door
•
A minimum of 481 mm (18.94 in)
between the front rack posts and the
rear door
NOTE:
The signal cables and power cords are routed through the front of the chassis. If you use power
cords that has a conductor cross-section area of a minimum of 16 sq mm (0.02 sq in), leave more
space between the front rack posts and the front door as appropriate.