User Manual
ADCP-75-110 • Issue B • March 2001
Page 6
©
2001,
ADC
Telecommunications,
Inc.
(1) AC POWER CORD
CONNECTOR
(2) AC POWER
ON/OFF SWITCH
(3) OPTICAL PORT
LED INDICATOR
(6 PLACES)
(4) OPT/ELEC PORT
ENABLE/DISABLE
SWITCH (6 PLACES)
(5) ELECTRICAL PORT
DC POWER JACK
(6 PLACES)
(6) OPTICAL PORT
OPTICAL ADAPTERS
TX-LEFT - RX-RIGHT
(6 PLACES)
(7) UNIT LED
INDICATOR
(10) RF INPUT
CONNECTOR
(8) OVERDRIVE
LED
INDICATOR
(9) ALARM
TERMINAL
STRIP
(11) RF OUTPUT
CONNECTOR
Fig 3B-A
NOTE: SHOWN WITHOUT
CABLE MANAGEMENT TRAY
Figure 3. Digital Host Unit User Interface
Table 1. Digital Host 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
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
optical
inputs
from
the
DRU
or
remote
DEU
are
normal
or
lost.
(see
Note)
4 ON/OFF
(Ports
1–6) I/O
rocker
switch Enables
or
disables
corresponding
electrical
and
optical
ports.
5DC
PWR
(Ports
1–6) RJ-45
jack
(female) Used
for
connecting
a
DRU
cat
5
power
cable
to
the
designated
DC
power
jack
6 FIBER
(Ports
1–6) Duplex
LC-type
fiber
optic
adapter
Used
for
connecting
each
DEU
or
DRU
forward
path
and
reverse
path
optical
link
to
the
designated
optical
adapter.
7 UNIT Multi-colored
LED
(Red/Green/Yellow)
Indicates
if
the
DHU
is
normal
or
faulty.
(see
Note)
8 OVERDRIVE Multi-colored
LED
(Red/Green/Yellow)
Indicates
when
the
forward
path
RF
input
power
is
overdriving
the
DHU
digitizing
circuitry
(see
Note)
9 MAJOR
MINOR Screw-type
terminal
connector
(14–26
AWG)
Used
for
connecting
an
external
alarm
system
to
the
DHU.
Includes
normally
open
(NO),
normally
closed
(NC),
and
common
(COM)
wiring
connections.
10 RF
IN N-type
female
RF
coaxial
connector
Used
for
connecting
the
forward
path
RF
coaxial
cable
to
the
DHU
11 RF
OUT N-type
female
RF
coaxial
connector
Used
for
connecting
the
reverse
path
RF
coaxial
cable
to
the
DHU
Note:
A
detailed
description
of
LED
operation
is
provided
in
Section
5.