Installation guide

Overview
1-2 Introduction
Overview
TheA2H124‐24FXisastackableFastEthernetswitch,whichcanbeadaptedandscaledto
helpmeetyournetworkneeds.Thisswitchprovidesamanagementplatformanduplinks
toanetworkbackboneforastackedgroupofuptoeightA2switches.Thetwobuilt‐in
SmallFormPluggable(SFP)
interfaceslotsprovideyouwiththeoptionofinsta lling
Mini‐GBICs.ThevariousversionsofhotswappableMini‐GBICsprovideyouwiththe
flexibilitytoinstallinterfacesthatsupport:
• 1000BASE‐TEthernetovercopperconnectionsfor10/100/1000Mbps
• 1000BASE‐SX/LX/ELXfiber‐opticconnectionsfor 1‐Gbpsfiber‐opticconnections
Theswitchalso
supportstheuseofaredundantDCpowersupplytohelpprevent
downtimeduetoaninternalpowersupplyfailureintheswitchorACpowersource.
YoucaninstalltheSecureStackA2
onaflatsurfaceorintoast andard19‐inchrackwith
user‐suppliedmountinghardware,andconfiguretheSecureStackA2functionsusingthe
WebView™application,CLIswitchingcommands,and/orSNMP.
A2H124-24FX
TheA2H124‐24FX(Figure 1‐1)hasseveraltypesoffrontpanelportsandrearpanel
connections,whichinclude:
•TwentyFour100BASE‐FXmultimodeMT‐RJPorts
•TwoSFPslotslabeledport27and28thatsupport
– optionalMini‐GBIC1000BASE‐TEthernetovercopperinterfaceconnectionsfor
10/100/1000Mbpsoperation
– optional1000BASE
‐SX/LX/ELXfiber‐opticconnections
•Two1000BASE‐TRJ45Portswhichcanbeusedinastackconfigurationaswellas 
standardGigabitEthernetswitchportswhenconfiguredasastandaloneswitch.
•RearpanelRedundantPowerSupplyconnectorforaredundantpowersupply
connection.TheswitchconnectstoanEnterasysC2RPS‐SYS
usingaC2RPS‐PSM
Cable.
Caution: The A2H124-24FX is not a PoE-compliant device. Do not connect a
SecureStack C2 PoE Redundant Power System (C2RPS-POE) to the power connector.
Otherwise, damage to the device may result.
Precaución: El dispositivo A2H124-24FX no cumple con el estándar PoE. No conecte
una fuente de poder redundante (RPS) SecureStack C2 PoE (C2RPS-POE) al cable de
corriente directa. De lo contrario, el dispositivo puede dañarse.
Note: The 1000BASE-T built-in RJ45 stacking ports 25 and 26 on the A2H124-24FX can
be configured as standard 10/100/1000BASE-T switch ports, using the command “set
switch stackport <ethernet | stack>” when the unit is in standalone mode (not stacked).