HPE OfficeConnect 1420 Series User Manual

2
•
The accessories shipped with the switch, including but not limited to power cords, are
intended only for the switch. Please do not use them for other products.
Examining the installation site
The switches must be used indoors. You can mount your switch in a rack, on a horizontal surface,
on a wall, or under a table. Make sure the following requirements are met:
•
A minimum of 5 cm (1.97 in) of clearance is reserved at the air inlet and outlet vents for
ventilation.
•
The rack has a good ventilation system and the air inlet and outlet vents are not blocked
when the switch is mounted under a table or on a horizontal surface.
•
The rack, table, or horizontal surface is sturdy enough to support the switch and its
accessories.
•
The rack is reliably grounded.
To ensure correct operation and long service life of your switch, install it in an environment that meets
the requirements described in the following subsections.
Temperature/humidity
Maintain temperature and humidity in the equipment room as described in "Environmental
specifications."
•
Lasting high relative humidity can cause poor insulation, electricity leakage, mechanical
property change of materials, and metal corrosion.
•
Lasting low relative humidity can cause washer contraction and ESD and cause problems
including loose mounting screws and circuit failure.
•
High temperature can accelerate the aging of insulation materials and significantly lower the
reliability and lifespan of the switch.
Cleanliness
Dust buildup on the chassis might result in electrostatic adsorption, which causes poor contact of
metal components and contact points, especially when indoor relative humidity is low. In the worst
case, electrostatic adsorption can cause communication failure.
Table 2 Dust concentration limit in the equipment room
Substance
Concentration limit (particles/m³)
Dust ≤ 3 x 10
4
(no visible dust on the tabletop over three days)
NOTE:
Dust diameter ≥ 5 μm
The equipment room must also meet strict limits on salts, acids, and sulfides to eliminate corrosion
and premature aging of components, as shown in Table 3.
Table 3 Harmful gas limits in the equipment room
Gas
Maximum concentration (mg/m
3
)
SO
2
0.2
H
2
S 0.006
NH
3
0.05

HPE OfficeConnect 1420 Series Specifications

General

Model	HPE OfficeConnect 1420 Series
Layer	Layer 2
Operating Temperature	0°C to 40°C (32°F to 104°F)
Input Voltage	100-240 VAC
Management	Unmanaged
Power over Ethernet	No
Dimensions	Varies by model
Weight	Varies by model
Type	Switch
Ports	8, 16, 24
Port Type	Gigabit Ethernet
Form Factor	Desktop or Rackmount
Power Supply	External power adapter
Throughput	Up to 35.7 Mpps
Operating Relative Humidity	15% to 90% non-condensing
Power Consumption	Varies by model
Jumbo Frames	9216 bytes
MAC Address Table Size	8K entries