WNI Global Challenger L Series, User Reference And Installation Manual

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1-7 This manual is provided by WNI Global and its confidentiality is preserved. Without the pre-written consent from WNI Global, anyone
may not disclose, extract, cite or publish any part or all parts of this manual. Version No.: V2.0
The recommended maximum length for all cables to terminal equipment is a maximum of 3
meters. The exception to this recommendation is the length of the ODU/IDU Interconnect cable,
which connects the Outdoor Unit to the Indoor Unit.
Power Supply Input
DC Input
-48 VDC
-48v (Isolated Input); 2-pin captive power connector. The
Challenger L Digital Radio requires an input of -48 volts dc
±10% at the front panel DC Input connector. The total
required power is dependent on the option cards and
protection configuration (1+0, 1+1). The Challenger L IDU
front panel power connector pin numbering is 1 through 2,
from left to right, when facing the unit front panel. Pin 1 is the
power supply return and is connected to unit chassis ground
internally. Pin 2 should be supplied with a nominal -48 V dc,
with respect to the unit chassis (ground). A ground-isolated
supply may be used, provided it will tolerate grounding of its
most positive output.
The recommended power input is -44 to -52 V dc at 2 Amps
minimum. It is recommended that any power supply used be
able to supply a minimum of 100 W to the Challenger L IDU.
A mating power cable connector is supplied with the
Challenger L IDU. It is a 2-pin plug, 5 mm pitch, manufactured
by Phoenix Contact, P/N 17 86 83 1 (connector type MSTB
2,5/2-STF). This connector has screw clamp terminals that
accommodate 24 AWG to 12 AWG wire. The power cable
wire should be selected to provide the appropriate current with
minimal voltage drop, based on the power supply voltage and
length of cable required. The recommended wire size for
power cables under 10 feet in length supplying -48 Vdc is 18
AWG.
The Challenger L IDU supplies the ODU with all required
power via the ODU/IDU Interconnect cable. The Challenger L
IDU does not have a power on/off switch. When DC power is
connected to the IDU, the digital radio powers up and is
operational. There can be up to 320 mW of RF power present
at the antenna port (external antenna version). The antenna
should be directed safely when power is applied.