Nautel NX100, Preinstallation Manual

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NX100 Pre-installation Manual Planning audio inputs
Page 7-2 Issue 3.2 2017-03-31
AES/EBU
AES/EBU must be applied from an external source to
ANALOG AES/EBU
XLR connector J10 or J11
on the control/interface PWB (A11A1). The external source must produce a level between -30 and
0 dBFS for 100% modulation.
NOTE
:
Stereo broadcast is only possible by using one of the AES/EBU inputs.
Digital inputs
The NX100 accepts the following digital inputs:
IBOC
To use an IBOC (In Band On Channel) input, the NX100 requires the optional exgine PWB
(A11A7). The exgine PWB accepts the digital audio data from an Importer/Exporter arrangement
via a LAN (local area network) connection and, in conjunction with the control/interface PWB
(A11A1), provides the LVDS signals (I and Q) to the exciter in CMOS format.
The digital audio data from the LAN/Exporter must be connected via an Ethernet cable to
ETHERNET
connector J1 on the exgine PWB. The transmitter’s GUI allows configuration of the
IBOC input.
Refer to the Importer and Exporter documentation for more information.
Refer to the Operating section of the NX100 Operations and Maintenance Manual for an example of
setting an IBOC preset.
DRM
To use a DRM (Digital Radio Mondiale) input, the NX100 requires an external DRM modulator
module. The DRM exciter module accepts the digital audio data via a LAN connection and provides
the baseband I and Q signals to
AES/EBU
connector J10 on the control/interface PWB (A11A1), in
AES/EBU format.
Refer to the DRM exciter module’s documentation for more information.
Refer to the Operating section of the NX100 Operations and Maintenance Manual for an example of
setting a DRM preset.