User Manual

MDR2400/5800-SR, Orion2410/5810-SRi and Orion 5825-SR
862-01881 Issue 12c Page 123
IDU 1 A
IDU 1 B
IDU 2 A
IDU 2 B
ODU ODU
ODU ODU
RF Link A
RF Link B
HUB
Ethernet
Tributries
AUX Port
Cross Connect
Ethernet
Network Port IP Addr
192.168.1.2
Network Port IP Addr
192.168.1.4
Network Port IP Addr
192.168.1.3
Network Port IP Addr
192.168.1.5
Config PC
Tributries
AUX Port
Cross Connect
One-Plus-One Redundancy System
Protection Panel
Splitter/Combiner
Protection Panel
Splitter/Combiner
Figure 10: Block diagram of a typical redundancy protected system where the radio links
are managed through an Ethernet network.
J.2.2.1 1U Protection Panel
There are two types of protection panels: a four and an eight tributary channel panel.
They operate in the same way and perform the signal splitting and combination
functions for the tributary channels taking part in the redundancy protected radio
system. Note from Table 14:
Protection Kit connector interfaces. that the Protection
Kit is currently only provided in 110-ohm as a compromise to make provision for E1
and T1 mode.
Table 14:
Protection Kit connector interfaces.
Description Connector Impedance
Orion Protection Panel
Payload Network Interface 2xDB-25 or 8xRJ-48 110 ohm
Digital Indoor Unit Interface 2x2xDB-25 110 ohm
Orion Protection Panel
Payload Network Interface DB-25 or 4xRJ-48 110 ohm
Digital Indoor Unit Interface 2xDB-25 110 ohm
The cables required to connect the Patch Panel to the two Digital Indoor Units are
provided with the Patch Panel. The DB-25 pinouts used for each DB-25 connector on