NEC 2400 ipx Bedienungsanleitung PDF herunterladen (Seite 313)

ND-71548 (E) CHAPTER 4

Page 295

Issue 2

SYSTEM STARTUP

NAP-200-019

Sheet 1/2

Power ON

START

Visual Inspection Check whether any pins on the backplane of each Module

are bent and cause a short.

Check whether any foreign matter such as a cleaning fluid

residue is present on the connector portion of the circuit

cards.

On each circuit card equipped with ROM (CPU, etc.),

check whether any pins of the ROM are bent or improperly

seated.

Leave all circuit cards inserted

halfway

Mount all circuit cards (including PWR Supplies) in the

Module, leaving them inserted only halfway. (They should

not be inserted into their connectors.)

Check input voltage Check insulation across the -48 V and G terminals on the

power receiving terminal of the Base Unit.

Turn ON power to the rectifier and check the voltage (DC

-48V ± 5V) and its polarity on the power receiving terminal

of the Base Unit.

Turn ON Fan Units Turn FAN UNIT ON.

Verify that air is blown upwards.

If the Fuse blows, the input polarity is reversed.

Turn OFF the FAN UNIT.

Correct polarity, replace the fuse and turn FAN UNIT ON.

Verify that the FAN blows air upwards.

Check PWR Supply Check the Power Supplies for each Module one at a time.

Check Steps:

1. Turn circuit breaker OFF and insert the PWR Supply.

2. Turn circuit breaker ON (See Note).

3. Various lamps (Green) illuminate.

4. Observe the PWR Supply for a while and confirm that

nothing abnormal (unusual smell, smoke, etc.) occurs.

5. Turn the circuit breaker ON/OFF a few times and

observe the condition.

6. Turn the circuit breaker OFF and remove the PWR

Supply.

Note: If a Module is equipped with dual PWR Supplies,

they must be turned ON/OFF.

ATTENTION

Contents

Static Sensitive

Handling

Precautions Required

1 2 ... 308 309 310 311 312 313 314 315 316 317 318 ... 427 428

Kommentare zu diesen Handbüchern

Keine Kommentare

NEC 2400 ipx Bedienungsanleitung Seite 313

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Telefone NEC 2400 ipx