3Com NBX, Installation Manual

Page: 94 / 248

94 C
HAPTER
2: I
NSTALLING
S
YSTEM
H
ARDWARE
C
OMPONENTS
view the MAC address label attached to each card. MAC address
labels are located on the component side of NBX cards. All four ports
on a card share one MAC address and they are differentiated by a
channel number, 1-4. After a card is inserted into a chassis, the MAC
address is not visible.
On Analog Line Card 3C10114, which is no longer in production, each
port has a different MAC address and port addresses are consecutive. A
label on the card shows the base MAC address, which is the address for
port 1. The other three ports are incremented versions of the base MAC
address.
Optionally Upgrading
NBX Memory
The V3000 and V5000 systems can accept a memory upgrade module. If
your system requires a memory upgrade, see the instruction sheet that
comes with the memory kit.
For more information on which NBX features require expanded memory,
see
“Maximum Device Counts and Memory Requirements” on page 59 .
Mounting an NBX
Chassis
To mount the chassis in an equipment rack or on the wall (NBX 100 only),
you need:
■
Two mounting brackets (supplied with the Call Processor)
■
Four mounting screws (supplied with the Call Processor)
■
Phillips screwdriver
■
Drill and drill bit (wall-mount only)
■
Level (wall-mount only)
■
19-in. equipment rack (for rack mounting only)
Mounting an NBX Chassis in an Equipment Rack
To mount an NBX chassis in an equipment rack:
Verify that the equipment rack is properly installed and grounded and
that the installation area is properly ventilated.
1 Attach the two mounting brackets securely to the sides of the
NBX chassis (NBX 100 chassis shown in
Figure 26 ) using the upper and