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Cisco 7200 Series Port Adapter Hardware Configuration Guidelines
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Chapter 1 Cisco 7200 Series Port Adapter Installation Requirements
Chassis Overview—Rear View
Note A blank port adapter is installed in port adapter slot 5 in Figure 1-1. To ensure adequate airflow across
the router’s internal components, ensure that each port adapter slot is filled with either a port adapter or
a blank port adapter.
The port adapters installed in Cisco 7200 series routers are of the same type as those installed in other
Cisco 7000 family routers. Cisco 7200 series routers support the online insertion and removal (OIR) of
installed port adapters.
Chassis Overview—Rear View
Figure 1-2 Cisco 7200 Series Router—Rear View
The rear of Cisco 7200 series routers provides access to a network processing engine (NPE) or network
services engine (NSE) and up to two 280W AC-input or DC-input power supplies (see Figure 1-2).
Most NPEs and the NSE have no external connectors or LEDs. There is a handle for removing and
installing the engines and two captive installation screws for securing them to the chassis.
The NPE-G1 and NPE-G2 have external connectors for Gigabit Ethernet interfaces, and a console port
and auxiliary port; the NPE-G2 also has a Fast Ethernet Management port. The NPE-G1 and NPE-G2
also have a cable-management bracket.
A fully configured Cisco 7200 series router operates with only one installed power supply; however, a
second, optional power supply of the same type provides hot-swappable, load-sharing, redundant power.
The power supply has the router’s main power switch and either an AC-input power receptacle, or three
hardwired DC-input power leads (depending on the type of installed power supply). Adjacent to the
power supply bays are two chassis grounding receptacles that provide a chassis ground connection for
ESD equipment or a two-hole grounding lug (see Figure 1-2).
1 Power supply filler plate 5 AC-input power supply
2 Chassis grounding receptacles 6 AC-input power receptacle
3 Network processing engine or network
services engine
7 Internal fans
4 Power switch
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