Table 1: Link and Activity Status LEDs for Ports 1 to 24 .....................................................................................................23

Table 2: Twisted Pair Ports 1 to 24 on the x950-28XTQm Switch .......................................................................................24

Table 3: Link and Activity LEDs for Ports 1 to 24 on the x950-28XTQm Switch .................................................................25

Table 4: Link and Activity Status LEDs for 40Gbps QSFP+ or 100Gbps QSFP28 Transceivers ........................................27

Table 5: Link and Activity Status LEDs for 10Gbps Breakout Cables .................................................................................28

Table 6: Port Numbering for Ports 25 to 37 .........................................................................................................................29

Table 7: NET MGMT Port LED ............................................................................................................................................31

Table 8: Optional Direct Attach Cables ................................................................................................................................34

Table 9: LEDs on the PWR600 Power Supply ....................................................................................................................36

Table 10: PORT Parameter Format .....................................................................................................................................38

Table 11: Software and Hardware Releases ......................................................................................................................40

Table 12: XEM2 Ethernet Line Cards ..................................................................................................................................43

Table 13: Twisted Pair Ports on the XEM2-8XSTm Line Card ............................................................................................45

Table 14: Link and Activity LEDs for the Twisted Pair Ports on the XEM2-8XSTm Line Card ............................................46

Table 15: Link and Activity LEDs for the SFP Ports on the XEM2-8XSTm Line Card .........................................................47

Table 16: Twisted Pair Ports on the XEM2-12XT Line Card ...............................................................................................49

Table 17: Port Link and Activity LEDs on the XEM2-12XT Line Card .................................................................................50

Table 18: Twisted Pair Ports on the XEM2-12XTm Line Card ............................................................................................51

Table 19: Link and Activity LEDs on the XEM2-12XTm Line Card ......................................................................................52

Table 20: Port Link and Activity LEDs on the XEM2-12XS Line Card .................................................................................54

Table 21: Port Link and Activity Status LEDs on the XEM2-4QS Line Card .......................................................................56

Table 22: Link and Activity Status LEDs for 10Gbps Breakout Cables ...............................................................................56

Table 23: Port Link and Activity Status LED on the XEM2-1CQ Line Card .........................................................................57

Table 24: Transceivers for the Base Transceiver Slots .....................................................................................................132

Table 25: Transceivers for the Optional XEM2 Ethernet Line Cards .................................................................................133

Table 26: Product Dimensions ...........................................................................................................................................164

Table 27: Product Weights ................................................................................................................................................165

Table 28: Ventilation Requirements ...................................................................................................................................166

Table 29: Environmental Specifications .............................................................................................................................167

Table 30: Maximum Power Consumptions (Watts) for the x950-28XSQ Switch ...............................................................168

Table 31: Maximum Power Consumptions (Watts) for the x950-28XTQm Switch ............................................................169

Table 32: Typical Power Savings in eco-friendly Mode (Watts) for the x950-28XSQ Switch ............................................169

Table 33: Typical Power Savings in eco-friendly Mode (Watts) for the x950-28XTQm Switch .........................................170

Table 34: Input Voltages ....................................................................................................................................................170

Table 35: Maximum Power Supply Efficiency (Based on 100V Input Voltage) .................................................................171

Table 36: Heat Dissipations for the x950-28XSQ Switch ..................................................................................................171

Table 37: Heat Dissipations for the x950-28XTQm Switch ................................................................................................172

Table 38: Product Certifications .........................................................................................................................................173

Table 39: Pin Signals on RJ-45 Twisted Pair Ports at 100Mbps ......................................................................................174

Table 40: Pin Signals on Twisted Pair Ports at 1/2.5/5/10Gbps ........................................................................................175

Table 41: RJ-45 Style Serial Console Port Pin Signals .....................................................................................................176

Table of Contents