H3C Technologies H3C MSR 20-1X - Manual (Page 27)

20
Figure 15 Wall-mounting
170 mm
Step4 Align the installation holes at the bottom of the router with two screws and hang the router on the screws.
CAUTION:
When mounting the router, keep the network interface facing downwards and the two sides with
ventilation holes vertical to the ground.
Installing Generic Modules
For the procedure for installing generic modules, including various smart interface cards (SICs), refer to
MSR Series Routers Interface Module Manual.
Connecting the PGND Cable
WARNING!
Correctly connecting the protection grounding (PGND) cable is crucial to the lightning protection and
electromagnetic susceptibility (EMS) of your router. You must correctly connect the PGND cable when
installing or using the router.
The power input end of the router is equipped with a noise filter. The neutral ground of the power input
end is directly connected to the chassis and called PGND (also known as chassis ground). The PGND
must be well grounded so that induced current and leakage current can be safely led to the ground and
the EMS of the router can be reduced. The PGND cable can also protect the router against high lightning
voltage resulting from external network lines such as E1/T1 line or ISDN/PSTN line.
The protection grounding terminal marked with a grounding label is located on the rear panel of the
chassis, as shown in the following figure: