Cirius LM User Manual 2016 Page 4
1. Product Description
1.1. Overview
The radio system serves as the Indoor Unit of a point-to-point microwave radio system
designed for microwave band operation with Outdoor Units (ODUs). Key features and
functions are as fo ows:
• Line interface and conditioning functions necessary for transport of none, four or
sixteen PDH T1/E1 channe s
• Ethernet transport via two front pane 100BaseT RJ-45 user ports. The IDU can be
configured for standa one Ethernet transport, or a combination of T1/E1 and
Ethernet transport with aggregate transport rates of up to 170 Mbps.
• Digita modem functions with configurab e modu ation modes of QPSK, 16QAM,
32QAM, 64QAM, 128QAM and 256QAM
• Configurab e forward error correction with settab e inter eaver depth ( atency)
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• Front pane management interfaces inc ude two dedicated Management Ethernet
ports and an RS-232 seria conso e port.
• On-board Ethernet Switch together with dua dedicated management Ethernet
ports supports daisy-chaining of Ethernet Management
• Supported remote management software protoco s inc ude a web (HTTP) GUI
interface, te net and SNMP
• Overhead admin seria channe interface (transported as side-channe over the
ink)
• Two FormC genera purpose re ays
• Two A arm Bi- eve inputs
• -21 to -60V DC Power interface (positive vo tage capabi ity is optiona )
• A Outdoor Unit (ODU) interface signa s are mu tip exed onto front-pane N type
connector interface
• Front pane LEDs indicate Power-on, A arm and Fau t status
• Optiona protected mode operation provides two ODU interfaces, with automatic
switching to hot standby ODU in the case of detected primary ODU fai ure.
Functiona b ock diagrams of these are provided as Figure 1 and Figure 2.
Depictions of front pane interfaces are given as Figure 3 and Figure 4
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Note that FEC configuration and interleaver depth are imbedded as part of the IDU Configuration discussed in
Section
