Use of Power over Ethernet at the UZH
Power over Ethernet (PoE) makes it possible to supply power to certain end devices directly via the Ethernet switch, rather than using separate power adapters. This reduces energy consumption, simplifies operations and saves the University of Zurich from having to use around 10,000 individual power adapters for IP telephones each year.
Central PoE Devices
PoE power supply is intended exclusively for centrally managed devices:
| Device type | Responsible department |
|---|---|
| IP phones | Central IT, IT Infrastructure Department |
| Wi-Fi access points | Central IT, IT Infrastructure Department |
| Lecture hall cameras | Central IT, MELS Department |
| Security cameras | Safety and Environment Department |
| Temperature sensors |
Engineering & Facilities / Central IT |
Additional central applications, e.g. in building management or security, are possible – the modalities must be coordinated in advance with Central IT (IT Infrastructure Department).
Prohibited Uses
- PoE is not available for individual applications or third-party devices.
- Connecting unauthorised devices may disrupt network operations and is prohibited.
- The network management system detects unauthorised PoE devices and automatically disconnects them.
Safety and Precautions
Warning: PoE supply voltage is present on every UCC outlet.
Prohibited
It is dangerous to connect a device that supplies voltage via the Ethernet interface itself. The combination of two voltage sources can lead to:
- Network disruptions
- Hardware damage to the end device or switch
- power failures and high repair costs.
Special Note Regarding Mini-Switches
When using (not recommended) mini-switches with PoE ports, only a port without PoE functionality may be connected to the UCC outlet.
Contact
If you have any questions, please contact the
- «IT and Construction Coordination» Unit,
IT Infrastructure Department, Central IT.
Email: itundbau@zi.uzh.ch