3Com OfficeConnect 3CR414492 Getting Started Manual page 20

2-2 C 2: I
HAPTER
OCR 812 in Unconfigured Mode and thus need to use
the Command Line Interface (CLI) to configure your
router. The DB-9 terminal port connects the OCR 812 to
your console. Then you would use a terminal emulator
program to access the CLI and run the Quick Setup and
QuickVC scripts. See the Installation Map for
instructions.
Reset button — This button, located on the rear of the


OCR 812, resets the configuration of the router. See
Resetting the Configuration of Your Router for more
information about resetting your router's configuration
with the Reset button.
DIP (Dual Inline Package) Switches (4) — Switches 1


through 4 can be turned on and off in certain
combinations for different configurations. See OCR 812
Boot Mode Options in Chapter 1 for complete
instructions on the switches to set for specific
configurations.
Power Inlet — The power port attaches to an external,


15-volt DC power supply included in your package. The
other end of the power supply cable connects to a
standard electrical socket.
Ethernet (LAN) Ports (4) — The shielded, 8-pin, RJ-45


Ethernet (10Base-T) ports connect the OCR 812 with
the LAN. A 10Base-T cable is provided to make this
connection.
MDI/X Switch — Swaps the transmit (Tx) and receives


(Rx) signal pairs on Ethernet port 1.




NOTE: The MDI/X button must not be pressed in to use
Port 1 for connection to a workstation.
O
NSTALLING THE FFICE
When the MDI/X button is pressed in, then Port 1 on
the unit becomes a cascade hub port, for
connection to a non-cascade port on another hub.
When the MDI/X button is not pressed, Port 1 is
pinned the same as the remaining 3 ports. In this
mode, a workstation's ethernet port or the cascade
port on another hub can be connected to any of the
four ports on the unit.
C R 812 ADSL R
ONNECT EMOTE OUTER