User Manual

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ADCP-75-150 • Preliminary Issue A • March 2003 • Section 2: Description

Page 2-12

©

2003,

ADC

Telecommunications,

Inc.

4 REMOTE UNIT INDOOR MOUNTING SHELF

The

RU

indoor

mounting

shelf,

shown

in

Figure 2-5,

is

a

rack-mountable

framework

that

provides

the

following

basic

functions:

• Supports

the

various

electronic

modules

(STM

and

LPA)

and

accessories

(WDM

or

CWDM)

for

mounting

within

a

standard

19-inch,

WECO

or

EIA,

equipment

rack.

• Provides

the

electrical

interface

connections

for

the

STM

and

LPA

modules.

• Provides

an

AC

power

cord

for

powering

the

STM

module

• Provides

DC

power

connections

for

the

CWDM

module.

4.1 Primary Components

The

RU

indoor

mounting

shelf

is

a

rack-mountable

frame

assembly

that

provides

mounting

slots

for

the

STM,

LPA,

WDM

(accessory),

and

CWDM

(accessory)

modules.

The

indoor

mounting

shelf

is

designed

for

mounting

in

a

standard

19-inch,

EIA

or

WECO,

equipment

rack.

The

frame

assembly

is

constructed

of

steel

and

is

painted

putty

white

for

corrosion

protection.

Table 2-2. Remote Unit Cabinet User Interface

REF

NO

DEVICE FUNCTIONAL DESCRIPTION

1Air

inlet

filters Reusable

filters

that

prevent

the

entry

of

dirt

particles

when

out-

side

air

is

pulled

into

the

cabinet

for

cooling.

2AC

power

cord Provides

AC

power

to

the

STM.

3Door

switch Indicates

to

the

fault

detection

and

alarm

reporting

system

if

the

cabinet

door

is

open

(major

alarm)

or

closed.

4LPA

mounting

slot Provides

a

mounting

point

for

the

LPA

module.

5STM

mounting

slot Provides

a

mounting

point

for

the

STM

module.

6WDM/CWDM

mounting

slot

Provides

a

mounting

point

for

either

the

WDM

or

CWDM

mod-

ule.

7CWDM

power

cord Provides

DC

power

to

the

CWDM

module.

8Fiber

slack

spools Provide

a

storage

place

for

excess

fiber

pigtail

and

patch

cord

slack.

9 Lightning

protector Provides

lightning

surge

protection

for

the

antenna

connection.

10 Fiber

cable

connector Provides

both

an

entry

point

and

strain

relief

for

the

fiber

optic

cable.

11 3/4-inch

NPT

threaded

hole Provides

a

connection

point

for

a

3/4-inch

AC

conduit

fitting.

121 Grounding

lug Provides

a

connection

point

for

an

external

grounding

cable.