Chapter 4: Hardware interfaces
LAN interface
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4.7 LAN interface
4.7.1 Overview
The terminal has four Ethernet LAN ports with Power over Ethernet (PoE). The
Ethernet ports are standard IEEE 802.3 af ports using RJ-45 connectors.
4.7.2 Power over Ethernet (PoE)
One power supply powers all four interfaces with a floating 48 V DC supply
(44 - 57 V DC). Therefore, the interfaces are not galvanically separated from
each other. All Tx signals are DC connected to the Positive PoE Voltage and all
Rx signals to the Negative PoE Voltage.
The total output power from all 4 interfaces is set to 61.2 Watt, so all interfaces
can support devices of power class 1, 2 and 3 (4, 7 and 15.4 Watt).
In case of power hold-up (failure on input power), PoE will be turned off.
Summary of Contents for 500 FleetBroadband
Page 1: ......
Page 2: ...SAILOR 500 250 FleetBroadband INSTALLATION MANUAL ...
Page 16: ...Table of contents xiv ...
Page 22: ...Chapter 1 System units 6 IP handset and cradle ...
Page 60: ...Chapter 3 Connecting power 44 Remote on off ...
Page 100: ...Chapter 7 Troubleshooting 84 Logging of events ...
Page 124: ...Appendix B Technical specifications 108 SAILOR FleetBroadband terminal ...
Page 146: ...Appendix C Grounding and RF protection 130 Electrostatic Discharge ...
Page 154: ...Index 138 ...