H3C AR 46 Series Routers Installation Manual
Chapter 3 Installing the Router
3-10
2)
Connect the fiber-optic Ethernet interface cable
Caution:
In connecting optical fibers, observe the following:
z
Do not over-bend the fiber. Its curvature radius must be greater than 10 cm (3.9 in.).
z
Ensure that the Tx and Rx ends are correctly connected.
z
Ensure that the fiber ends are clean.
Warning:
Laser danger: Invisible laser radiation may be emitted from the fiber-optic ports which
are connected with lasers. To protect your eyes against radiation harm, never stare into
an open fiber-optic port.
Follow these steps to connect a 10/100/1000 Mbps fiber-optic interface on the
ERPU/ERPU(H):
Step 1: Use two fibers to connect the Rx and Tx ends of the interface to another device:
Rx to Tx, and Tx to Rx.
Step 2: Power on the router and read the LINK LED of the interface: ON means the Rx
link is present. OFF means no Rx link is present; check the line for the cause.
3.9 Connecting the Router to a WAN
Many types of WAN interfaces are available with the AR 46 series and the one provided
by the main control boards is AUX interface. The following subsections describe how to
connect it. For connecting the WAN interface on an FIC, refer to
Low-End and
Mid-Range Series Routers Interface Card and Interface Module Manual
.
I. AUX port
AUX is an RS232 asynchronous serial interface, which can back up a WAN interface
and provide dial connection. In case of console failure, AUX can function as a console
interface. For the AUX interface attributes, refer to the section “RPU”.
II. AUX cable
AUX cable is an eight-wire shielded cable. At one end of the cable is an RJ-45
connector for connecting the console port on the router. At the other end are DB-9