Switch 3870 — Rear View Detail 17
Switch 3870 — Rear
View Detail
Figure 3 Switch 3870 — rear view
Expansion Module
Slot
You can use this slot to install an Expansion Module. Contact your
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 100-240 VAC.
Redundant Power
System Socket
To protect against internal power supply failure, you can use this socket
to connect the Switch to a SuperStack 3 Advanced Redundant Power
System. See “Connecting a Redundant Power Supply”
on page 25.
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.
Redundant Power System Socket
Power Socket
Stacking Cable Port (Down)
Stacking Cable Port (Up)
Expansion Module Slot
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DUA1745-0AAA02.book Page 17 Monday, August 9, 2004 11:51 AM
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