User's Manual

Exalt Communications Inc.
EX-2.4i Installation and Maintenance Manual
Page 16
MAN-002400, Revision 001
2005-12-01
• Connect a fixed (or a series of fixed) 50-ohm attenuator(s) to the RF connector, either
directly or at the end of an RF transmission line. The attenuator should be at least 20dB
as specified at 2400 MHz, and rated for a minimum of 1W input power.
o Broadwave Technologies P/N 352-103-xxx
o Bird 2-A-MFN-xx
o JFW Industries 50FP-xxx-H6-N
4.2.2 AC Power
The optional AC adaptor (sold separately) comes equipped for easy direct connection to the
device. The AC rating of the adaptor accepts most worldwide standard voltages and frequencies.
Please refer to the input voltage requirements stated on the label that is affixed to the adaptor to
assure that the adaptor may be used with your AC mains supply. The AC plug outlet provided
with the adaptor may need to be replaced to match your country configuration. The adaptor cable
uses a standard connector for this cable so that you can simply use a pre-wired cable that is
appropriate to your outlet configuration. If that type of cable is not available, the existing AC
plug end can be severed and a replacement plug affixed. Consult a qualified electrician for this
activity.
Do not plug the adaptor into your mains power. First, verify that the RF connector is properly
terminated (per section 4.2.1 above) and then plug in the radio-side connector from the AC
adaptor to the radio. If your AC mains can be turned off by a switch, disable the power first, plug
the AC side of the adaptor into the AC mains socket, and then enable power to the circuit. If your
AC mains cannot be turned off, simply plug into the AC main socket to apply power. Verify
radio is active by observing LED activity. All LEDs will flash at initial power cycle, for the user
to verify that all LEDs are operational.
It is strongly encouraged that the AC Mains supply be fused or on a breaker to ensure against
over-voltage and/or over-current situations to provide some form of protection to the radio
electronics and other devices that may be connected to the same supply. In addition, if your AC
power is subject to significant spikes or variation, power conditioning is a worthwhile
investment, as the quality of mains power may have a direct impact on the device operation,
performance and/or reliability. Many users will deploy an Uninterruptible Power Source (UPS)
or other form of battery-backed system, to protect against brown-out and black-out conditions, as
well as to condition the power being presented to the adaptor.
It is also important to evaluate the opportunity for lightning or other similar surges to become
present on the powering system, including the ability for surges to couple to the power wiring
system. If an evaluation indicates that there is a potential likelihood for these conditions to occur,
additional surge protection may be recommended for the input power wiring, especially between
the adaptor and the radio’s DC input connector, to protect the radio electronics.
The above statement is similarly true for every wired connection to the device. While the
configuration for surge suppression or line conditioning is of a different type for each kind of
signal interface, the opportunity for damage to the device, loss of communications and property