Cisco 1721 - Manual (Page 46)

Chapter 2 Installation
Optional Installation Steps
2-14
Cisco 1721 Router Hardware Installation Guide
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Step 2 Hang the router on the screws with either the left side or right side mounting
brackets so that
• The LEDs are visible to the user—Because the LEDs indicate the router
operating status, they need to be easily visible.
• The power supply does not hang from its cable—If the power supply is not
supported, it might disconnect from the cable that connects it to the router.
Caution If you install the screws in drywall, use hollow wall anchors (1/8 inch
by 5/16 inch) to secure the screws. If the screws are not properly anchored, the
strain of the cables connected to the router rear-panel connectors could pull the
router from the wall.
Stacking the Router
You can stack one Cisco 1721 router in a four-device stack, along with other Cisco
products designed to be stacked with the router. You can stack each device directly
on top of another device.
Note The Cisco 1721 router is not shipped with the stacking equipment described
in this section; however, the equipment is included with all other Cisco
products that are designed to be stacked.
Each Cisco product designed to be stacked with the router comes with a stacking
clip and a fastener for keeping the multiple devices together in a stack. Before you
stack the devices, assemble the clip and fastener as shown in
Figure 2-8 .