18 Evolution Series - XPAND NGP\00329 Rev. C 23-06-2006
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.
Figure 3-1 System Block Diagram 1+0 Terminal
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
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