Transition Networks E-TBT-HB-0802 - Manual (Page 9)

LANMaster T8 6 13 8-Port Ethernet Hub w/SIC Slot
Ensuring Correct 10BaseT Configuration
The 10BaseT cable and RJ-45 connectors for Hub to Terminal
connections must be configured as straight through. The 10BaseT
cable and RJ-45 connectors for Hub to Hub connections must be
configured as crossover. NOTE: When installing the LANMaster T8
Hub using the MDI port, a crossover cable is not needed. The MDI
switch can be used to change the straight through configuration to
crossover at port 8.
1
8
RJ-45 Plug
1 2 3 4 5 6 7 8
RJ-45 Connectors
RJ-45 Pin Assignments
BNC Connector/10Base2 Connection
The thinnet coaxial card (E-CX-SIC)
provides a BNC connector to 10Base2.
NOTE: Verify that coax cables on
LANMaster T8 are terminated properly
at both ends. (In a coax thinnet
installation, the first and last device in
a daisy-chain must be terminated with
a 50 ohm terminator.)
Additionally, the 10Base2 segment
must be grounded to “earth ground”.
Fiber Optic Connector/10BaseFL Connection
The fiber optic card (E-FRL-SIC) provides one set of transmit (TX)
and receive (RX) connectors to fiber optic cable.
The redundant fiber optic card (E-FL/RED-SIC) provides a back-up
fiber optic connection by providing two sets of transmit (TX) and
receive (RX) connectors to fiber optic cable.
50 ohm terminator
50 ohm terminator
up to 2000 meters
The two active pairs
in a 10BaseT network
are pins 1 & 2 and
pins 3 & 6. Use only
dedicated wire pairs
(such as blue/white &
white/blue,
orange/white &
white/orange) for the
active pins.
Straight Through Cable
at RJ-45 Plug
Hub . . . . . . . . . . . . . . . .PC, transceiver, NIC, printer
RJ-45 Male . . . . . . . . . . . . . . .RJ-45 Male
1 . . . . . . . . . . . . . . . . . . .1
2 . . . . . . . . . . . . . . . . . .2
3 . . . . . . . . . . . . . . . . . .3
6 . . . . . . . . . . . . . . . . . . .6
Crossover Cable
at RJ-45 Plug
Hub . . . . . . . . . . . . . . .Hub
RJ-45 Male . . . . . . . . . . . . . . .RJ-45 Male
1 . . . . . . . . . . . . . . . . . . .3
2 . . . . . . . . . . . . . . . . . . .6
3 . . . . . . . . . . . . . . . . . .1
6 . . . . . . . . . . . . . . . . . .2