Troubleshooting - Lanberg RS Series Quick Installation Manual

Quick Installation Guide
Rack type PoE+ switches
4) PoE switch features
4.1) Basic operation feature
The device operates in standard mode if the toggle switch is set to „Normal" position. All ports can
4.2) VLAN feature
communicate with each other. The maximum speed is as specified.
The device supports the full separation of ports between themselves. Changing toggle switch to the
„VLAN" position will prevent all 24 ports from communicating with each other except for the Uplink ports,
which can communicate with all ports simultaneously. After toggling the connection (called a „link") will
4.3) PoE 250 m with VLAN feature
be reset and separated between the ports.
The switch supports an extended working distance between it and the end-device including VLAN feature.
In this mode, you can use one cable with a maximum length of 250 m. It is imperative that the cable is
certified for a minimum category 5e, has 8 wires, and the conductor is made of pure copper (100% CU).
By changing toggle switch to the „PoE Extend 250 m" position, all 24 ports will support longer distance
operation and feature described in 4.2 point. After toggling the power on the PoE ports will still be
4.4) Turning off PoE ports after exceeding the PoE budget feature
delivered, however, the connection (called as a link) will be reset and speed will be max. up to 10 Mb/s.
The PoE switch provides a full, total PoE budget of 360 W. PoE ports can operate in the IEEE 802.3af or IEEE
802.3at standard, ensuring maximum power supply of connected devices up to 30 W per port. If the total
available PoE budget is exceeded, the switch chipset will turn off the power on the PoE ports, starting with
the highest numbering of the PoE port to the smallest. The shutdown procedure will be stopped when
a total load of connected devices will be lower than the available PoE budget. It is recommended to
connect the most important devices starting from the port with the lowest numbering. Never connect
devices that may exceed the PoE budget to PoE ports with the highest numbers. That will cause a run

5) Troubleshooting

loop effect and the continuity of their work will not be maintained.
Power LED is turned off: check if the power cord is correctly plugged in and the plug is in the PoE switch. On top
•
of that, make sure that input current parameters are in accordance with the specification. Try removing and
inserting the plug again or use a different power cord that meets the rack PoE switch specification.
LAN port's LED is turned off: check if the cable is not damaged and that the network configuration is set
•
correctly. Then check whether all devices connected to the PoE switch are operational and properly configured.
• The dedicated LAN port's PoE LED is not lit orange: check that the end device supports active PoE mode - at
least one of the standards: IEEE 802.3af or IEEE 802.3at. Make sure to use a certified category 5e Ethernet
connection cable, built with 8 wires and made of pure copper (100% CU).
Connected devices do not operate at distances up to 250 m: check if the PoE 250 m toggle switch is set to „PoE
•
Extend 250 m". Then make sure that used connection cable (Ethernet) is certified to a minimum of 5e, is made
of 8 wires and the conductor is made of pure copper (100% CU).
• Devices connected to the PoE ports operate at speeds of up to 10 Mb/s: check that the toggle switch is set to
„PoE Extend 250 m". If so, switch it to „Normal".
E-mail: support@lanberg.eu
www.lanberg.eu
Lanberg © 2015-2021
PL | EN
12 | 14