Chassis
The router chassis is a rigid sheet metal structure that houses all the other router hardware components (see Figure 1 and Figure 2). The chassis is 19 in. (48 cm) wide and 23.5 in. (60 cm) deep. The chassis height of 35 in. (89 cm) enables stacked installation of two M40 routers in a single floor-to-ceiling rack. The two front- or center-mounting ears (one on each side) enable installation into either a front-mount or a center-mount rack. For more information, see Rack Requirements.
The chassis includes two electrostatic discharge (ESD) points (banana plug receptacles), one front and one rear, as shown in Figure 1 and Figure 2.
Before removing or installing components of a functioning router, attach an ESD strap to one of the ESD points and place the other end of the strap around your bare wrist. Failure to use an ESD strap could result in damage to the router.
The router must be connected to earth ground during normal operation.
For further safety information, see Regulatory Compliance and Safety Information.
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