phn-4755_002v006Page 6-36Chapter 6: RFU-S LEDsThe RFU-S provides the following LEDs to indicate the status of the unit's interfaces, and the unit asa whole:• Electrical GbE Interface (RJ-45) LEDs• Optical GbE Interface (SFP) LED• Status LEDNoteThe EXT LED is not relevant for RFU-S.Electrical GbE Interface (RJ-45) LEDsThere are two Green LEDs on either side of the electrical (RJ-45) interface.Figure 20 RFU-S LEDs – RJ-45 InterfaceThe LED on the left indicates the port’s Admin state:• Off - Admin is Disabled.• Green - Admin is Enabled.The LED on the right indicates the interface's Admin and cable connection status, and whether thereis traffic on the interface:• Off - Admin is Disabled or no cable is connected to the interface.• Green - Admin is Enabled and a cable is connected to the interface.• Blinking Green - Admin is Enabled and a cable is connected to the interface, and there is trafficon the interface.Optical GbE Interface (SFP) LEDThere is a single green LED to the upper right of the SFP interface.