Chapter 1 Getting to Know Your Switch
GS1915 Series User’s Guide
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You can download the ZON Utility at www.zyxel.com and install it on a PC (Windows operation system).
For more information on ZON Utility see
1.1.4 PoE
The Switch is a Power Sourcing Equipment (PSE) because it provides a source of power through its
Ethernet ports. Each device that receives power through an Ethernet port is a Powered Device (PD).
The Switch can adjust the power supplied to each PD according to the PoE standard the PD supports.
PoE standards are:
• IEEE 802.3af Power over Ethernet (PoE)
• IEEE 802.3at Power over Ethernet (PoE) +
The following table describes the PoE features of the Switch by model.
1.2 Example Applications
This section shows a few examples of using the Switch in various network environments. Note that the
Switch in the figure is just an example Switch and not your actual Switch.
Table 3 GS1915 Series Models and PoE Features
POE FEATURES
GS1915-8EP
GS1915-24EP
IEEE 802.3af PoE
Yes
Yes
IEEE 802.3at PoE+
Yes
Yes
Power Management Mode
Consumption mode (default) /
Classification mode
Consumption mode (default) /
Classification mode
PoE Power Budget
60 W
130 W
Table 4 PoE Standards
PoE FEATURES
PoE
PoE+
IEEE Standard
IEEE 802.3af
IEEE 802.3at
PoE Type
Type 1
Type 2
Switch Port Power
Maximum Power Per Port
15.4 W
30 W
Port Voltage Range
44 – 57 V
50 – 57 V
Cables
Twisted Pairs Used
2-pair
2-pair
Supported Cables
Cat3 or better
Cat5 or better
