ADCP-75-110
•
Issue 2B
•
July 2001
Page 12
©
2001, ADC Telecommunications, Inc.
Table 3. Digital Expansion Unit User Interface
REF
No.
USER INTERFACE
DESIGNATION
DEVICE
FUNCTIONAL
DESCRIPTION
1
POWER
3-wire
AC power
cord
connector
Used
for connecting the AC power cord.
2
I/O
I/O
rocker switch/
circuit
breaker
Provides
AC power On/Off control and
AC
power over current protection.
3
OK/NOK
(Ports 1–6) Multi-colored LED
(Red/Green/Yellow)
Indicates
if the DRU or remote DEU
connected
to the optical port is normal or
faulty
or if the reverse path optical input
from
the DRU or remote DEU is normal
or
lost. (see Note)
4
ON/OFF
(Ports 1–6)
I/O
rocker switch
Enables
or disables corresponding
electrical
and optical ports.
5
DC
PWR (Ports 1–6)
RJ-45
jack (female) Used for connecting a DRU cat 3 or 5 power
cable
to the designated DC power jack.
6
FIBER
(Ports 1–6)
Small
form factor
LC-type
optical
transceiver
Used
for connecting each DRU or remote
DEU
forward path and reverse path optical
link
to the designated optical port.
7
HOST
PORT
Small
form factor
LC-type
optical
transceiver
Used
for connecting the DHU or supporting
DEU
forward path and reverse path optical link.
8
UNIT
Multi-colored
LED
(Red/Green/Yellow)
Indicates
if the DEU is normal or faulty.
(see
Note)
9
HOST
PORT
Multi-colored
LED
(Red/Green/Yellow)
Indicates
if the forward path optical input
from
the DHU or supporting DEU is
normal
or lost. (see Note)
Note:
A detailed description of LED operation is provided in Section 4.
1.5 Terms and Definitions
Refer
to Table 4 for a listing of the terms used in this manual and their definition.
Table 4. Terms and Definitions
TERM
DEFINITION
Alarm
Response
The
response to an alarm input.
Base
Transceiver Station
The
radio equipment that transmits and receives the voice and
control
channels to and from the cellular handsets.
Composite
Signal
The
sum of several combined signals.
Digital
Expansion Unit
The
unit that extends a single optical interface to multiple optical
interfaces
or that extends an optical run.
Digital
Host Unit
The
unit that converts and provides the digital source signal to all DEUs
and
DRUs and converts summed inputs from DEUs and DRUs.
(continued)
Summary of Contents for Digivance
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