User Manual

ManualsBrandsADC Telecommunications ManualsElectronicsDigivance Indoor Coverage Solution System

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ADCP-75-136 • Issue 1 • November 2002

Page 35

©

2002,

ADC

Telecommunications,

Inc.

7.

Remove

the

dust

caps

from

the

optical

fiber

connectors

and

the

port

1

optical

transceiver.

Note:

Leave

the

dust

cap

in

place

on

any

unused

optical

transceiver.

8.

Clean

each

connector

(follow

connector

supplier’s

recommendations)

and

then

insert

the

optical

fiber

connector

pair

into

DHU

optical

port

1

(see

Figure

19).

9.

Place

the

optical

fibers

within

the

cable

guides

provided

on

the

cable

management

tray

(see

Figure

19)

and

then

dress

and

secure

the

fibers

at

the

DHU

per

standard

industry

practice.

10.

Connect

the

forward

and

reverse

path

optical

fibers

to

the

DEU

or

the

DRU

as

specified

in

the

instructions

provided

with

that

unit.

11.

Use

the

designation

card

provided

(see

Figure

19)

to

indicate

the

location

and

name

of

the

DRU

or

DEU

that

is

connected

to

each

optical

fiber

pair.

The

designation

card

holder

may

be

attached

to

any

convenient

flat

surface

such

as

the

DHU

cable

management

tray

12.

Repeat

steps

1–11

for

each

remaining

optical

port.

4.9 DC Power Connections

The

DC

power

interface

between

the

DHU

and

each

DRU

is

supported

by

six

RJ-45

female

connectors.

Each

DHU

RJ-45

connector

provides

nominal

48

Vdc

power

for

the

associated

DRU

except

when

the

DRU

is

powered

with

an

ac/dc

converter.

A

category

3

or

5

twisted

pair

cable

is

used

to

feed

the

power

from

the

DHU

to

the

DRU.

Use

the

following

procedure

to

install

the

DC

power

cable

and

to

connect

it

to

the

DHU.

1.

Obtain

the

required

length

of

category

3

or

5

twisted

pair

cable.

2.

Route

the

cable

between

the

DHU

and

the

DRU

(unless

already

routed)

and

then

cut

to

required

length.

Allow

sufficient

slack

for

dressing

and

organizing

the

cable

at

the

DHU.

Note:

The

maximum

distance

for

routing

power

cable

is

500

meters

(1,641

feet).

3.

Terminate

each

end

of

the

cable

with

a

male

RJ-45

connector.

Match

the

wire

color

to

the

connector

pin

as

specified

in

Table

6.

Caution:

The

DRU

will

be

damaged

if

the

RJ-45

connector

is

wired

incorrectly.

4.

Perform

a

continuity

test

to

verify

that

each

wire

is

properly

connected

to

the

terminating

RJ-45

connector

and

check

the

connector

for

correct

polarity

(see

diagram

in

Table

6).

Table 6. RJ-45 Connector Pin Designations

PIN NUMBER WIRE COLOR CONNECTOR PINS

1

2

3

4

5

6

7

8

White/Green

Green

White/Orange

Orange

White/Blue

Blue

White/Brown

Brown

PIN

1

PIN

8

+48 VDC ON PINS 1, 3, 5, AND 7

RETURN ON PINS 2, 4, 6, AND 8

16180-A