100BASE-TX Network
2-2 Network Requirements
100BASE-TX Network
Whenconnectinga100BASE‐TXsegmenttooneofthefixedports(1 through24on
B2G124‐24,1through48onB2G124‐48,or1through48onB2H124‐48),useCategory5
UTPcabling.TheswitchattheotherendofthetwistedpairsegmentmustmeetIEEE
802.3‐2002
100BASE‐TXFastEthernetnetworkrequirementsfortheswitchestooperateat
100 Mbps.
1000BASE-FX Network
TheMini‐GBICportsockets(21 through24onB2G124‐24;45through48onB2G124‐48;or
49through52onB2H124‐48)enableyoutovarythetypeof1‐Gbpsportconnection.At
theprintingofthisdocumenttherewerefivesupportedMini‐GBICsavailable,asfollows:
•MGBIC‐LC01
fora1000BASE‐SXcompliantLCfiber‐opticmultimodeconnection
•MGBIC‐LC03fora1000BAS E‐SXcompliantLCfiber‐opticmultimodeconnection
•MGBIC‐LC09fora1000BAS E‐LXcompliantLCfiber‐opticsingle‐modeconnection
•MGBIC‐MT01fora1000BASE‐SXcompliantMT‐RJfiber‐opticsingle‐mode
connection
•MGBIC‐08for
a1000BASE‐ELXcompliantLCfiber‐opticsingle‐modeconnection
Thedeviceattheotherendofthefiberconnectionmustmeet thesameGigabitEthernet
requirementsfortheconnecteddevicestooperateat1‐Gigabitspeed.
1000BASE-T Network
TheRJ45fixedfrontpanelconnectorssupportRJ45copper1000BASE‐Tcompliant
connections.Whenconnectinga1000BASE‐TsegmenttooneoftheRJ45fixedportsuse
Category5UTPcabling.Thedeviceat theotherendofthetwistedpairsegmentmust
meetIEEE802.3‐20021000BASE‐TGigabitEthernet
networkrequirementsforthedevices
tooperateat1000 M bps.
Note: When using the fixed ports on the switch for 100 Mbps operation use Category 5
UTP cabling with an impedance between 85 and 111 ohms for 100 Mbps operation.
The fixed switch ports are capable of operating at 10, 100, or 1000 Mbps. This is
accomplished by the switch when Auto-Negotiation is enabled. This enables the switch to
automatically sense the transmission speed of the other device and adjust for the speed
accordingly.
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