Allied Telesis, Inc. reserves the right to change specifications and other
information in this document without prior written notice. The information
provided herein is subject to change without notice. In no event shall Allied
Telesis, Inc. be liable for any incidental, special, indirect, or consequential
damages whatsoever, including but not limited to lost profits, arising out of or
related to this manual or the information contained herein, even if Allied Telesis,
Inc. has been advised of, known, or should have known, the possibility of such
damages.
Allied Telesis, AlliedWare, AlliedWare Plus, and SwitchBlade are trademarks or
registered trademarks in the United States and elsewhere of Allied Telesis, Inc.
Adobe, Acrobat, and Reader are either registered trademarks or trademarks of
Adobe Systems Incorporated in the United States and/or other countries.
Microsoft and Visio are either registered trademarks or trademarks of Microsoft
Corporation in the United States and/or other countries. Additional brands,
names and products mentioned herein may be trademarks of their respective
companies.
2
Installation Guide
Contents
About this Guide .............................................................................................................. 4
Compatible Switches and Operating Systems ........................................................... 5
Obtaining Documentation and Resources ............................................................... 30
3
Expansion Modules
About this Guide
Optional expansion modules (XEMs) enable economical combinations of port
type, speed and density in a single switch. Front bays in the switch allow quick
and easy installation.
This Installation Guide describes how to install the following XEMs:
■ XEM-1XP, a single XFP port for high-speed fibre connections
■ XEM-2XP, a dual 10 GbE XFP port expansion module for high-speed fibre
connections
■ XEM-2XS, a dual 10 GbE SFP+ port expansion module for high-speed fibre
and SFP+ Direct Attach copper connections
■ XEM-12S, 12 SFP ports for copper and fibre links
■ XEM-12Sv2, 12 SFP ports for copper and fibre links
■ XEM-12T, 12 x 10/100/1000 Mbps RJ-45 ports
■ XEM-12Tv2, 12 x 10/100/1000 Mbps RJ-45 ports
■ XEM-2XT, a dual 10 GbE RJ-45 port expansion module for high-speed
copper connections
■ XEM-24T, 24 x RJ Point Five ports for high density cabling solutions
■ XEM-STK, dual stacking ports for scalability and high availability
You can download the complete document set for x900 Series switches and
SwitchBlade® x908 from www.alliedtelesis.com/support/software. For more
information about the document set and other resources, see “Obtaining
Documentation and Resources” on page 30.
4
Installation Guide
Compatible Switches and Operating Systems
XEMs can be installed in the following switches:
■ x900-12XT/S
■ x900-24XT
■ x900-24XT-N
■ x900-24XS
■ SwitchBlade x908
The SwitchBlade x908 can operate in Extended Mode to take advantage of
larger table sizes and Link Aggregation Groups, as shown in the following table:
Standard ModeExtended Mode
MAC entries16K32K
LAGs31128
Extended Mode can be enabled when the following XEMs are installed in a
SwitchBlade
■ XEM-2XP
■ XEM-2XS
■ XEM-12Sv2
■ XEM-12Tv2
■ XEM-2XT
■ XEM-24T
x908 switch:
The AlliedWare Plus™ Operating System supports all XEMs. The AlliedWare®
Operating System supports all XEMs except the XEM-STK, the XEM-2XP and
the XEM-2XT.
5
Expansion Modules
Compatible Pluggable Optical Modules
For the latest list of approved SFP, SFP+ and XFP fibre transceivers plus SFP+
Direct Attach copper modules, contact your authorised Allied Telesis
distributor or reseller. See the most current revision available of the XEM
datasheet (document number 617-000034) for further information about which
SFP, SFP+, and XFP fibre transceivers and SFP+ Direct Attach copper modules
are approved for use.
Package Contents
The following items are included with each XEM:
■this Installation Guide
■one warranty card
Contact your authorised Allied Telesis distributor or reseller if any items are
damaged or missing.
6
Installation Guide
XFP
XFP
L/A
L/A
LINKACTENABLEDDISABLED
FAULT
XEM-1XP
XEM-1XP 10 Gigabit XFP Port
The XEM-1 XP single-port 10 Gigabit Ethernet expansion module features:
■ one XFP port
■ LEDs showing port status
■ support for hot-swappable XFP transceiver modules
Front view XEM-1 XP
The following LEDs report operations and faults on the XEM-1 XP.
LEDStateDescription
L/A
(Link Activity)
GreenAn XFP transceiver module is installed and a 10 Gb
link has been established.
Green
flashing
An XFP transceiver module is installed and link
activity is occurring.
OffA link has not been established.
XFPGreenAn XFP transceiver module is installed and enabled.
AmberAn XFP transceiver module is installed but not
operating or is disabled.
Amber
The installed XFP transceiver module has a fault.
flashing
OffAn XFP transceiver module is not installed.
7
Expansion Modules
For the latest list of approved XFP transceiver modules, contact your authorised
Allied Telesis distributor or reseller. See the most current revision available of
the XEM datasheet (document number 617-000034) for further information
about which XFP transceiver modules are approved for use with the XEM-1XP.
Caution Allied Telesis recommends waiting 30 seconds after hot swapping
any XEM before resuming normal operations. The switch must fully complete
the bootup process before you can hot swap any XEM. Also ensure the XEM
fastening thumbscrews are fully tightened. If you are unsure about correct
procedures, contact your authorised Allied Telesis distributor or reseller.
8
Installation Guide
XFPL/A
LINKACTENABLEDDISABLED
FAULT
XEM-2XP
XFP
L/A
XFP
L/A
1
2
XEM-2XP Dual 10 Gigabit XFP Ports
The XEM-2 XP Dual 10 Gigabit Ethernet expansion module features:
■ two XFP ports
■ four LEDs (one set for each XFP port) showing port status
■ support for hot-swappable XFP transceiver modules
Front view XEM-2 XP
The following LEDs report operations and faults on the XEM-2XP.
LEDStateDescription
L/A
(Link Activity)
GreenAn XFP transceiver module is installed and a 10
Gbps link has been established.
Green
flashing
An XFP transceiver module is installed and link
activity is occurring.
OffA link has not been established.
XFPGreenAn XFP transceiver module is installed and enabled.
AmberAn XFP transceiver module is installed but not
operating or is disabled.
Amber
flashing
The installed XFP transceiver module is not ready
or has a fault.
OffAn XFP transceiver module is not installed.
9
Expansion Modules
For the latest list of approved XFP transceiver modules, contact your authorised
Allied Telesis distributor or reseller. See the most current revision available of
the XEM datasheet (document number 617-000034) for further information
about which XFP transceiver modules are approved for use with the XEM-2XP.
Caution Allied Telesis recommends waiting 30 seconds after hot swapping
any XEM before resuming normal operations. The switch must fully complete
the bootup process before you can hot swap any XEM. Also ensure the XEM
fastening thumbscrews are fully tightened. If you are unsure about correct
procedures, contact your authorised Allied Telesis distributor or reseller.
10
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