Fiberplex WDM16, User Manual

Power

Requirements

&

PSM

Mounting

The

power

supply

modules

(PSMAC)

accept

voltages

from

100

‐

240

VAC,

50/60

Hz.

Maximum

power

consumption

is

100W

per

module.

Although

the

power

supply

modules

are

designed

to

be

hot

swappable,

it

is

optimal

practice

to

insert

a

module

into

the

chassis

prior

to

the

application

of

AC

power.

The

power

supplies

must

be

installed

in

the

top

most

slot

when

viewing

the

insertion

end

of

the

respective

model

chassis.

A

secondary

redundant

power

supply

may

be

installed

in

the

bottom

slot.

To

access

the

fuses,

disconnect

power

cord,

and

remove

the

power

supply

unit

from

the

chassis.

Replacement

fuses

must

have

the

required

current

rating

and

must

be

of

the

specified

type.

Use

of

repaired

fuses

and/or

bypass

of

the

fuse

holders

is

not

recommended

and

will

void

the

warranty.

The

system

power

requirement

for

a

17

‐

unit

(maximum)

rack

configuration

is

115

VAC

@

15

Amps;

if

supplied

with

230

VAC,

8

Amps

is

required.

Figure

5

Inserting

Power

Supply

Using

Redundant

Power

Supplies

The

WDM16/8

units

come

standard

with

a

single

PSMAC

power

supply

installed.

This

configuration

may

be

perfectly

acceptable

for

many

applications.

In

the

case

of

mission

critical

applications

which

have

zero

tolerance

for

downtime,

it

is

advisable

to

add

a

second

optional

PSMAC

power

supply

for

complete

redundancy.

The

second

supply

can

be

inserted

at

any

time

in

the

unused

power

supply

slot.

Insert

the

supply

first,

then

apply

external

AC

power.

The

PSMAC

and

the

WDM16/8

support

‘hot

swapping’

of

the

power

supplies.

This

means

that

either

supply

can

be

removed

or

inserted

without

powering

down

the

unit.

With

two

supplies

installed,

in

the

event

of

a

failure

of

one

PSMAC,

the

unit

will

continue

to

operate

on

the

remaining

supply.

A

new

replacement

can

be

installed

and

powered

up

without

disturbing

the

unit.

Best

practice

for

utilizing

redundant

power

is

to

connect

each

supply

to

a

different

power

source

or

‘phase’

of

power.

This

way

if

one

phase

of

power

suffers

an

outage,

the

unit

will

continue

to

work

on

the

remaining

phase.

Power

Supply

Module

Fuse

Replacement

The

power

supply

modules

are

each

protected

by

a

single

2A

time

‐

delay

fuse

(Littlefuse

model

218.002

Slo

‐

Blo).

Replacement

of

the

fuse

requires

the

power

cord

to

be

disconnected

from

the

power

supply

AC

inlet

and

the

power

supply

to

be

removed

from

the

chassis.

To

access

the

fuse,

use

an

appropriate

sized

flat

head

screwdriver

and

remove

the

Fuse

Compartment

Cap.

The

fuse

will

simply

slide

out

of

the

Fuse

Compartment

with

the

cap

removed.

Slide

a

new

fuse

which

meets

the

stated

specifications

into

the

Fuse

Compartment

and

replace

the

cap.

You

may

now

re

‐

insert

the

power

supply

into

the

chassis

and

reconnect

the

power

cord

to

the

power

supply

AC

inlet

connector.

Replace

only

with

identical

or

equivalent

time

‐

delay

fuse.