System Configurations; 1+0 System - Nera Evolution Series Technical Description

3.

SYSTEM CONFIGURATIONS

Evolution Series XPAND is available in the following configurations:
•
1+0 (Unprotected)
•
1+1 Hot Standby
•
1+1 Hot Standby – Dual antenna/Space Diversity
•
1+1 Frequency Diversity
•
1+1 Frequency Diversity – Space Diversity
•
1+1 Frequency Diversity – Dual Polarised
•
2+0 Dual frequency – Single Polarisation (DF-SP)
•
2+0 Dual frequency – Alternating Polarisation (AP)
3.1.

1+0 system

The 1+0 configuration consists of an IFU basic frame, an E1 or T1 Interface Unit, a Radio Interface Unit,
a single coaxial cable to the ODU and an ODU mounted directly on the antenna or near the antenna.
When the ODU is not mounted directly on the antenna, a short flexible waveguide is used to connect the
ODU to the antenna port.
Legend
ALM External alarm input/output
AUX Auxiliary functions
EMF Embedded Management Functions
EOW Engineering Order Wire
LAN Local Area Network port (10/100BASE-TX Ethernet)
LIU Line Interface Unit
RIU Radio Interface Unit
PWR Power Supply
PXC PDH X-Connect
SERV Service functions
SU Supervisory Unit
USB Universal Serial Bus
XCVR Transmitter/Receiver
18
Figure 3-1 System Block Diagram 1+0 Terminal
Evolution Series - XPAND NGP\00329 Rev. C 23-06-2006