ZyXEL Communications XGS2220 Series, Руководство пользователя

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Chapter 1 Getting to Know Your Switch
XGS2220 Series User’s Guide
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The last four 10G ports can also be used for stacking. Use the four 10G fiber ports. When working in
stacking mode, the Switch can operate together with other Switches of the same model and firmware
version and allows you to remotely manage them from one switch using one single IP address.
This section shows a few examples of using the Switch in various network environments.
1.1.1 Multi-Gigabit
A 10 Gigabit port supports speeds of 10G if the connected device supports 10G and a Cat 6a (up to 100
m) or Cat 6 cable (up to 50 m) is used. The speed drops to 1G if these criteria are not met; it drops to
100M if a Cat 5 cable is used (up to 100 m).
If a network device such as a 5G network card, gaming computer, server, Network Attached Storage
(NAS) or Access Point (AP) only supports 2.5 Gigabit or 5 Gigabit connectivity, then the maximum speed
potential of these devices is never reached.
In addition, at the time of writing, most existing cabling is Cat 5e or Cat 6, further limiting maximum
speed or distance potential.
Multi-Gigabit (IEEE 802.3bz) solves these problems by additionally supporting 2.5 Gigabit and 5 Gigabit
Ethernet connections over Cat 5e and higher Ethernet cables. Multi-Gigabit ports are also backward
compatible with 100 Mbps and 1 Gigabit ports.
10/100/1000 Mbps
PoE Ports No 24 No No 48 48
100/1000 Mbps SFP
Interface No No 24 No No No
1/10 Gbps SFP+
Interface 4 4 4 4 4 4
1000 Mbps / 2.5/5/
10 Gbps Ethernet
Ports 2 2 2 2 2 2
1000 Mbps / 2.5/5/
10 Gbps PoE Ports No 2 No No 2 2
Smart FAN 1 (8,500 RPM) 3 (8,500 RPM) 2 (8,500 RPM) 2 (8,500 RPM) 4 (8,500 RPM) 1 (8,500 RPM)
2 (16,000 RPM)
Console Port USB-C USB-C USB-C USB-C USB-C USB-C
Table 1 XGS2220 Series Comparison Table (continued)
FEATURE XGS2220-30 XGS2220-30HP XGS2220-30F XGS2220-54 XGS2220-54HP XGS2220-54FP