Chapter2 - Getting Started 7
Ethernet Connection Requirements
TheMicroRouter 1250i’s Ethernet interface directly supports 10BaseT
twisted-pair Ethernet. Other Ethernet cabling types (such as thin
Ethernet,thick Ethernet, fiber optic cabling or pre-10BaseT
twisted-pair)can be supported using a 10BaseT mini-hub or other
conversiondevice.
10Base-TTwisted-Pair Ethernet
Toconnect the router's Ethernet interface to twisted-pair Ethernet
cabling you willn eedan unshield edtw isted-pair station cable that is
connected to a 10BaseT-compatibletwisted-pair hub.
Note:Ethernet cables and cable connectors are not supplied with
theMicroRouter product. Please contact your resellero r your
Compatible Systems representativefo r information on obtaining the
correctEthernet cabling supplies.
T1 Line Connection Requirements
TheMicroRouter 1250i includes an integrated fractional or full T1
CSU/DSU. Toconnect this interface to a T1 line, you will need an
RJ-45jumper cable. A straight-through Category 5 10BaseT jumper
cablewi ll work in this application.
Note:The MicroRouter 1250i includes loopback features which can
beu sed toch eck thefu nctionality of your T1 line. Beforeattempting to
routenetwork traffic, use these features to check the line’s basic
integrity.
Other Telco Line Connection Requirements
Inorder to connect to non-T1 wide area transmission lines, you must
connectthe router’s secondary wide area port to a modem, 56K
CSU/DSU,or ISDN Terminal Adapter. Whichof these devices you use
dependson the type of telco line.
Note: Beforeattempting to connect theMicroRouter 1250i’s
secondaryport to a leased telco line, use the loopback features of your
externalCSU/DSU to check the l ine. Thiscan save you a considerable
amountof time, since the more equipment you have on the line, the more
difficult it becomes to determine wherea problem is occurring.