IBM 8271 User Manual
8271 N
M
ODULE
WAYS
M
ATRIX
S
TACKING
S
WITCH
Introduction
With the 8271 Nways Matrix Stacking Switch Module
(02L0882) installed into your 8271 Nways Switch, you can
connect up to four Switches over high speed links, in a
single stack. This stack can then be managed as a single
unit with one IP address.
The Matrix Module can be installed into the following
models of 8271 Nways Ethernet LAN Switches:
■
8271 Nways Ethernet LAN Switch Models E12 and E24
■
8271 Nways Ethernet LAN Switch Models F12 and F24
A stack can consist of any combination of Switch Model
E12/E24 and Switch Model F12/F24 units.
You do not need a Matrix Module if you are connecting two
Switches back-to-back. You can connect two units using
the Matrix port located on the rear of the Switch and a
Switch Matrix Cable.
You can find more information on stacking units in the
user’s guide that accompanies your Switch.
U
SER’S
G
UIDE
DANGER: SD21-0030.
Handling the Matrix Module
The Matrix Module can be easily damaged by electrostatic
discharge. To prevent damage, please observe the following:
■
Do not remove the Matrix Module from its packaging
until you are ready to install it.
■
Do not touch any of the connectors or components on
the Matrix Module.
■
Handle the Matrix Module only by its edges and front
panel.
■
Always wear an anti-static wristband connected to a
suitable earth point.
■
Always transport or store the Module in appropriate
anti-static packaging.
Before Installation
ATTENTION: Before installing the Matrix Module into a
Switch, you must disconnect the Switch from the mains
power supply.
For full safety instructions, refer to the appropriate Switch
User’s Guide.
Installing the Module
We recommend that you install the Matrix Module into the
unit that will be at the bottom of your stack.
1
Remove the blanking plate from the rear of the Switch. You
should store it carefully for future use.
2
Hold the Matrix Module so that the text on the front panel
reads correctly, and guide it into the slot ensuring it is
located in the rails. See Figure 1.
Ensure that the connector on the Matrix Module engages
with the board inside the Switch. Press the Module fully into
the Switch.
3
Tighten the two captive screws to secure the Matrix Module
into the unit.
Cabling
With the Matrix Module installed, you can connect up to
four Switches in a stack. A typical configuration is shown in
Figure 2.
Figure 1
Inserting the Matrix Module into the Switch
Figure 2
You only need one Matrix Module for each stack.
The way in which units in the stack are numbered for management purposes is determined by the order of port connections to the Matrix Module. The units are numbered 1 to
4 from the bottom unit up.
A typical stack of switches
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