2-11
Installing the Switch
Installation Procedure
Wall or Under-TableMounting 
You can mount the HP 1820 24- and 48-port switches on a wall with either the 
front or rear panel facing up. 
WARNING For safe operation, please read the “Installation Precautions” on 
page 2-4 before mounting the switch.
Wall mount the switch with the network ports facing up or down.
Caution The switch should be mounted only to a wall or wood surface that is at least 
1/2-inch (12.7 mm) plywood or its equivalent. 
To mount the HP 1820 24- and 48-port switches, follow these steps:
1. Use a #1 Phillips (cross-head) screwdriver and attach the mounting 
brackets to the switch with the included 8-mm M4 screws.
2. Attach the switch to the wall or wood surface with two 5/8-inch number 
12 wood screws (not included).
To mount the HP 1820 8-port switches, follow these steps:
1. In the required location, mark the position for the mounting screws. The 
hole-to-hole distance is 3.54 inch (90 mm).
2. Use a #1 Phillips (cross-head) screwdriver and two of the included 20-mm 
M4 tap screws. Set the screw heads approximately 2 mm away from the 
mounting surface to allow the switch to slide onto the screws.