User's Manual

ADCP-75-132 • Issue 2C • August 2006
Page 22
© 2006, ADC Telecommunications, Inc.
TX RX
TX RX
TX RX TX RX TX RX TX RX
PORTS 1-6
PORTS
1-6
PORTS 1-6
FIBER PORT
FIBER PORT
HOST
PORT
FORWARD PATH
REVERSE PATH
FORWARD PATH
REVERSE PATH
FORWARD PATH
REVERSE PATH
DIGITAL
REMOTE
UNIT
DIGITAL
REMOTE
UNIT
DIGITAL
HOST
UNIT
DIGITAL
HOST
UNIT
DIGITAL EXPANSION UNIT
BASIC CONFIGURATION WITH DHU AND DRU
BASIC CONFIGURATION WITH DHU, DEU, AND DRU
END-TO-END OPTICAL CONNECTOR/CABLE ASSEMBLY DIAGRAM
16814-A
62.5 MICRON: MAXIMUM LENGTH = 500 METERS
50 MICRON: MAXIMUM LENGTH = 750 METERS
9 MICRON: MAXIMUM LENGTH = 10 KILOMETERS
Figure 11. Digivance ICS Optical Connections
3.5 Coaxial Cable Requirements
The DHU interfaces either locally (see Figure 8) or remotely (see Figure 9) with the BTS
through coaxial cable connections. In a local interface, coaxial cables are required to link the
DHU, HPCP, and the BTS. In a remote interface, coaxial cables are required to link the DHU,
RIU, and the donor antenna. The DHU, HPCP, and RIU are equipped with N-type female
connectors for connecting the forward and reverse path coaxial cables. High performance,
flexible, low loss 50-ohm coaxial communications cable (RG 400 or equivalent) should be
used for all coaxial connections.