User Manual

ManualsBrandsADC Telecommunications ManualsElectronicsDigivance Indoor Coverage Solution System

ADCP-75-136 • Issue 1 • November 2002

Page 53

2002,

ADC

Telecommunications,

Inc.

Connect

the

power

cable

the

RJ-45

circuit

access

tool

(see

Figure

28).

Using

voltmeter,

verify

that

the

voltage

level

between

and

Vdc

between

any

set

positive

and

negative

(+/-)

terminals

the

RJ-45

circuit

access

tool

shown

Figure

29.

Due

source

current

limiting

the

DHU

DEU,

low

voltage

can

mean

excess

wire

resistance,

low

source

voltage,

excess

remote

current.

Warning:

The

DRU

uses

Vdc

power.

avoid

electric

shock

burns,

use

extreme

care

when

working

near

exposed

terminals

uninsulated

cables.

careful

not

touch

exposed

terminals

cause

short

between

terminals

when

checking

voltage

levels.

16206-B

POSITIVE (+)

TEST POINTS

1, 3, 5, AND 7

NEGATIVE (-)

TEST POINTS

2, 4, 6, AND 8

Figure 29. RJ-45 Circuit Access Tool Pin/Wire Designations

Disconnect

RJ-45

circuit

access

tool

from

the

DRU.

Use

the

voltmeter

check

for

open

connections

checking

for

voltage

between

the

+/–

pairs

the

RJ-45

circuit

access

tool

(see

Figure

29).

Disconnect

the

power

cable

from

the

RJ-45

circuit

access

tool.

Re-connect

power

cable

the

DRU.

6.5 DHU or DEU Fan Replacement Procedure

recommended

that

the

fans

(catalog

DGVI-100000FAN)

replaced

every

five

years.

Replacement

fan

requires

that

the

DHU

DEU

turned

off

for

short

period

time.

This

will

drop

all

existing

calls,

cause

temporary

loss

service,

and

generate

major

alarm.

Use

the

following

procedure

replace

the

cooling

fans

within

the

DHU

the

DEU:

Before

touching

the

DHU

DEU

handling

fan,

slip

Electro-Static

Discharge

(ESD)

wrist

strap

and

connect

the

ground

wire

earth

ground

source.

Wear

the

ESD

wrist

strap

while

completing

each

section

the

fan

installation

procedure.

Warning:

Electronic

components

can

damaged

static

electrical

discharge.

prevent

ESD

damage,

always

wear

ESD

wrist

strap

when

working

the

DHU

DEU

and

when

handling

electronic

components.

Observe

the

fans

(located

right

side

enclosure)

determine

which

fan

requires

replacement.

The

faulty

fan

may

stopped,

running

reduced

speed,

the

fan

bearing

may

noisy.

Note:

Because

the

Mean

Time

Between

Failures

(MBTF)

the

same

for

both

fans,

may

efficient

replace

both

fans

the

same

time.

FCC ID: F8I-DISSMRAA, Partial User Manual, 4 of 4

Summary of content (11 pages)

PAGE 1
FCC ID: F8I-DISSMRAA, Partial User Manual, 4 of 4 ADCP-75-136 • Issue 1 • November 2002 3. Connect the DC power cable to the RJ-45 circuit access tool (see Figure 28). 4. Using a DC voltmeter, verify that the DC voltage level is between 34 and 48 Vdc between any set of positive and negative (+/-) terminals at the RJ-45 circuit access tool as shown in Figure 29. Due to source current limiting at the DHU or DEU, low voltage can mean excess wire resistance, low source voltage, or excess remote current.
PAGE 2
ADCP-75-136 • Issue 1 • November 2002 3. Notify the NOC or alarm monitoring system operator that the system is going offline. 4. Place the DHU or DEU AC power On/Off switch (see Figure 3 or Figure 7) in the OFF position (press O). 5. Remove the six flat-head screws (requires TORX screwdriver with T15 bit) that secure the fan/grill assembly to the side of the enclosure as shown in Figure 30 and save for reuse. 16172-B Figure 30. Fan/Grill Assembly Removal 6.
PAGE 3
ADCP-75-136 • Issue 1 • November 2002 16173-B Figure 31. Removing Fan From Grill 13. Place the DHU or DEU AC power On/Off switch in the ON position (press I). 14. Verify that the fans run properly following power up. 15. Notify the NOC or alarm monitoring system operator that the system is going back online. 6.6 DHU or DEU Modular Optical Transceiver Replacement Procedure The modular optical transceiver should be replaced when testing indicates that the transceiver has failed.
PAGE 4
ADCP-75-136 • Issue 1 • November 2002 Note: The HOST PORT on the DEU does not have an On/Off switch and can only be disabled by placing the DEU AC power On/Off switch in the OFF position (press O). Turning off the power to the DEU will create an alarm condition. If the DEU must be turned off, inform the NOC or alarm monitoring system operator that an alarm will be reported. 4. Disconnect the optical fiber connectors from the optical transceiver and place a dust cap over each connector. 5.
PAGE 5
ADCP-75-136 • Issue 1 • November 2002 RELEASE LEVER TX RX TYPE A TRANSCEIVER TYPE B TRANSCEIVER 17280-A RELEASE TAB TX DETAIL DRAWING OF TYPE A AND TYPE B MODULAR OPTICAL TRANSCEIVERS RX Figure 33. DHU or DEU Optical Transceiver Installation 9. Insert the optical transceiver into the socket until it locks into place. 10. Clean the optical fiber connectors and reconnect to the optical transceiver. 11.
PAGE 6
ADCP-75-136 • Issue 1 • November 2002 3. Disconnect the DC power cable connector from the RJ-45 power jack on the DRU front panel. Note: Disconnecting the power from the DRU will create an alarm condition. Inform the NOC or alarm monitoring system operator that the alarm will be reported. 4. Disconnect the optical fiber connectors from the optical transceiver and place a dust cap over each connector. 5.
PAGE 7
ADCP-75-136 • Issue 1 • November 2002 RELEASE LEVER TX RX TYPE A TRANSCEIVER TYPE B TRANSCEIVER 17286-A RELEASE TAB TX DETAIL DRAWING OF TYPE A AND TYPE B MODULAR OPTICAL TRANSCEIVERS RX Figure 35. DRU Optical Transceiver Installation 9. Insert the optical transceiver into the socket until it locks into place. 10. Clean the optical fiber connectors and reconnect to the optical transceiver. 11.
PAGE 8
ADCP-75-136 • Issue 1 • November 2002 7 GENERAL INFORMATION 7.1 Warranty/Software The Product and Software warranty policy and warranty period for all ADC products is published in ADC’s Warranty/Software Handbook. Contact the Technical Assistance Center at 1-800-366-3891, extension 73475 (in U.S.A. or Canada) or 952-917-3475 (outside U.S.A. and Canada) for warranty or software information or for a copy of the Warranty/Software Handbook. 7.
PAGE 9
ADCP-75-136 • Issue 1 • November 2002 7.4 Repair Charges If the defect and the necessary repairs are covered by the warranty, and the applicable warranty period has not expired, the Buyer’s only payment obligation is to pay the shipping cost to return the defective Product. ADC will repair or replace the Product at no charge and pay the return shipping charges. Otherwise, ADC will charge a percentage of the current Customer Product price for the repair or NTF (No Trouble Found).
PAGE 10
ADCP-75-136 • Issue 1 • November 2002 7.7 Customer Information and Assistance PHONE: EUROPE Sales Administration: +32-2-712-65 00 Technical Assistance: +32-2-712-65 42 EUROPEAN TOLL FREE NUMBERS Germany: 0180 2232923 UK: 0800 960236 Spain: 900 983291 France: 0800 914032 U.S.A.
PAGE 11
www.adc.