User's Manual

ADCP-75-130 • Issue 3C • August 2006
Page 7
© 2006, ADC Telecommunications, Inc.
(2) AC POWER CORD
CONNECTOR
(3) AC POWER
ON/OFF SWITCH
(1) GROUND
STUD
(4) OPTICAL PORT
LED INDICATOR
(6 PLACES)
(5) OPT/ELEC PORT
ENABLE/DISABLE
SWITCH (6 PLACES)
(6) ELECTRICAL PORT
DC POWER JACK
(6 PLACES)
(7) OPTICAL PORT
OPTICAL TRANSCEIVER
TX-LEFT - RX-RIGHT
(6 PLACES)
(8) UNIT LED
INDICATOR
(11) RF INPUT
CONNECTOR
(9) OVERDRIVE
LED
INDICATOR
(10) ALARM
CONNECTOR
RECEPTACLE
(12) RF OUTPUT
CONNECTOR
17264-A
NOTE: SHOWN WITHOUT
CABLE MANAGEMENT TRAY
Figure 3. Digital Host Unit User Interface
2.2 Digital Remote Unit Description
The DRU, shown in Figure 4, serves as the remote interface unit for the Digivance ICS. The
DRU provides the following basic functions:
• RF interface to the cellular users via an external antenna
• Optical interface to the DHU or DEU
• Conversion of the forward path digitized optical signal to a digitized RF signal
• Conversion of the digitized forward path RF signal to the original cellular RF signal
• Digitizing of the cellular reverse path RF signal
• Conversion of the digitized reverse path RF signal to a digital optical signal output
• Transports alarm status over the reverse path optical fiber
FRONT PANEL
MOUNTING FOOT
(EACH CORNER)
7.0 INCHES
(178 mm)
7.3 INCHES
(185 mm)
2.1 INCHES
(53 mm)
17268-A
Figure 4. Digital Remote Unit