Switch 3870 — Rear View Detail 15

Switch 3870 Rear Figure 3 Switch 3870 — rear view

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Power Socket

Expansion Module Slot

D

O

W

N

Stacking Cable Port (Up)

U

P

 

 

 

 

 

 

 

 

 

 

 

 

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 100-240 VAC.

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.

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3Com 3CR17451-91, 3CR17450-91 manual View Detail