User's Manual

Exalt Installation and Management Guide
EX-r Series GigE Digital Microwave Radios
201872-003 26
2015-10-23
mains socket, and then enable power to the circuit. If the AC mains cannot be turned off, plug in to the
AC main socket to apply power.
Verify that the radio is active by observing LED activity on the injector and radio. All LEDs on the
radio flash at initial power cycle.
Exalt strongly recommends that the AC mains supply be fused or on a separate breaker to ensure
against over-voltage and/or over-current situations and to provide some form of protection to the radio
electronics and other devices connected to the same supply. In addition, if the 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. An
Uninterruptible Power Source (UPS) or other form of battery-backed system protects against brown-
out and black-out conditions, and condition the power presented to the adapter.
Evaluate the opportunity for lightning or other similar surges to be 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 is
recommended for the input power wiring, especially to protect the radio electronics between the
adapter and the radio’s DC input connector.
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 is significant. In some
cases, there can also be a risk to human life by not protecting against lightning entering a building
through wiring or improper grounding. If you do not have experience in this type of installation
practice, consult a qualified electrician and/or telecoms professional during the installation and wiring
of the equipment.
Power Injector
The EX-r Series GigE radios use a power injector to send DC power to the radio over the Ethernet
cable, and including the Ethernet connections. Figure 14 shows the power injector connectors that
connect the AC adapter (included with the system) and the radio.
Figure 14 Power injector connectors
• Connect the network Ethernet connection to the DATA connection of the power injector.
• Connect the cable for the radio to the DATA+POWER connection of the power injector.
• Ground the power injector using the grounding receptacle. The injector can also be mount wall
using the bottom panel brackets.