Switch 3870 - Rear View Detail; Expansion Module Slot; Power Socket; Redundant Power System Socket - 3Com SUPERSTACK 3 3870 Series Getting Started Manual

Switch 3870 Rear
—
View Detail

Power Socket

Redundant Power System Socket

Expansion Module
Slot
Power Socket
Redundant Power
System Socket

Stacking Cable Ports

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.
Each Power Supply automatically adjusts its power setting to any power
voltage in the range 100-240 VAC.
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"
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.
Switch 3870 — Rear View Detail
D
O
W
N
Stacking Cable Port (Down)
on
17
Stacking Cable Port (Up)
U
P
page 25.