Switch 3870 — Rear View Detail 15
Switch 3870 — Rear Figure 3 Switch 3870 — rear view
View Detail
Power Socket
Expansion Module Slot
D
O
W
N
Stacking Cable Port (Up)
U
P
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Redundant Power System Socket | Stacking Cable Port (Down) | ||||
Expansion Module You can use this slot to install an Expansion Module. Contact your Slot supplier for further information.
WARNING: When an Expansion Module is not installed, ensure the blanking plate is fitted by tightening all screws with a suitable tool.
Power Socket Each Power Supply automatically adjusts its power setting to any power voltage in the range
Redundant Power To protect against internal power supply failure, you can use this socket System Socket to connect the Switch to a SuperStack 3 Advanced Redundant Power
System. See “Connecting a Redundant Power Supply” on page 23.
Stacking Cable Ports You can use these ports to connect the following cables:
■Stacking Cable (3C17462) — which enables you to stack together two switches up to three rack units apart.
■Resilient Stacking Cable (3C17463) — which enables you to stack together two switches up to sixteen rack units apart.
You can stack together any combination of 3870 24 port and 48 port units, up to a maximum of eight units.
For more information on how to connect a stacking cable to your switch units, please refer to the Installation Guide that accompanies your cable.