HP A5120 EI Series Installation Guide

7
Chassis
Front mounting brackets
Rear mounting brackets
A5120-24G-PoE+ EI (2 slots)
A5120-24G-PoE+ EI TAA (2 slots)
A5120-48G-PoE+ EI (2 slots)
A5120-48G-PoE+ EI TAA (2 slots)
One pair
One pair
Rack-mounting using only front mounting brackets
Use this installation method only for A5120-24G EI (2 slots), A5120-24G EI TAA (2 slots), A5120-48G EI
(2 slots), A5120-48G EI TAA (2 slots), A5120-24G EI, and A5120-48G EI switches.
To mount a switch in a 19-inch standard rack using only front mounting brackets (requires two people):
1. Wear an ESD-preventive wrist strap and make sure it makes good skin contact and is properly
grounded.
2. Check that the rack is properly grounded and can support the weight of the switch chassis and all
its accessories.
3. Unpack the front mounting brackets and the screws for attaching the brackets to the switch chassis.
4. Align the round holes in one bracket with the holes in the front mounting position of the switch
chassis, and use the screws to fasten the mounting brackets to the chassis, as shown in Figure 4.
Figure 4 Attach the front mounting brackets to the chassis
3
2
1
(1) Front panel of the switch
(2) Front mounting bracket
(3) Screw
5. Install cage nuts (user-supplied) in the mounting holes in the rack posts.
6. This step requires two people.
a. One person holds the switch chassis and aligns the oval holes in the brackets with the mounting
holes in the rack posts.
b. The other person fastens the mounting brackets to the rack with user-supplied M6 screws, as
shown in Figure 5.

HP A5120 EI Series Specifications

General

Uplink Ports	4 x SFP
Stacking	No
Management	CLI, Web, SNMP
Routing Protocols	RIP, OSPF
Power Supply	AC
MAC Address Table Size	16K
Dimensions	440 x 430 x 44 mm
Operating Temperature	0°C to 45°C
Operating Humidity	10% to 90% non-condensing
Model	HP A5120-24G EI Switch (JG234A)
VLANs	4094