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QMultiFlex-400™ Installation and Operating Handbook
4.3 Rack Mounting
If the unit is being installed in a user-provided rack, then adequate ventilation and cooling
should be provided. There must be adequate clearance around the rear and side-mounted
fans and the ventilation holes on the left side of the unit.
For rack mounting, there are screw positions on the unit's front panel for attaching it to the
rack, which prevent the unit from moving, which must always be used in conjunction with full-
length L-brackets fitted on both sides of the unit (or a tray underneath the unit) to support its
weight.
A 1U gap between units in the rack is not necessary but if extra space is available then any
gap will help minimise the temperature inside each unit, which may contribute to improving
long-term reliability (due to the well-known relationship between the temperature and
reliability of electronic components).
4.4 Getting Started
Connect the appropriate cables to the transmit and receive N-Type connectors at the rear of
the unit.
Connect an IP patch cable from the bottom IP traffic port (next to M&C port) to the IP
processing port IP4. IP1 (upper position) will become the main IP Traffic port.
IP Traffic
Cascade
Ports
RF Tx
M&C Port
RF Rx
Figure 4-1 Rear of Modem with IP Ports
Power the unit and wait for it to complete its initialization. Once booted the top menu will
display on the front panel and the modem is ready to connect to an M&C IP network.
The unit can be configured from a web browser as described in
Section 6.2
or it can be
configured using the front-panel menus by selecting Edit and then Service->General and
configuring all of the submenu settings (covering System, Service, MODCOD, Carrier and
Demods).
Once configured, connect network traffic to the IP Traffic port (in this case IP1).
When configuring a number of units that have similar settings, the configuration settings of
one unit can be saved, extracted and then transferred to each of the other units in turn,
using either the web user interface or the USB interface at the front of the modem. See
Sections 6.2.25 and 6.3.4.
4-2
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