13
4.
IDU Description
The IDU provides the basic modem functions and converts the baseband signals to the IF frequency to
be carried over to the ODU. It also provides the power and control signals to the IDU over the same IF
cable.
The other major function of the IDU is to provide user interface and management of the system from
various different methods (GUI, CLI, etc).
4.1
Front Panel Interfaces
All user interface features of the SkyWay-LM IDU, including power supply connection, is placed on the
front panel for easy access in a rack mount setting. Figure 4-1 below shows the front panel of SkyWay-
LM IDU. The following explanations are for each item (from right to left on the panel)
Figure 4-1: LM IDU Front Panel (16 TDM version shown)
1. DC Power
Connection to a source of -48VDC power is required for proper system operation. Power is applied via a
removable 2 or 3 pin barrier strip style connector. Based upon the version of IDU and type of power
source, power should be connected per Figure 4-3.
Summary of Contents for SKYWAY-LM Series
Page 1: ...1 SKYWAY LM SERIES PTP Microwave Radio System User s Guide APRIL 2010 Rev 1 6 PN 1552601 ...
Page 21: ...21 Figure 5 2 The backside of the ODU rectangular waveguide version shown ...
Page 25: ...25 Figure 5 9 Loosened plate Figure 5 10 Rotating the antenna waveguide by 90 degrees ...
Page 50: ...50 Figure 6 19 System Reboot Screen ...
Page 57: ...57 Figure 8 3 Serial Interface Menu Structure ...