Paradyne 8820, Руководство по установке

Страница: 43 / 86

2. Installation
8820-A2-GN20-80 November 2004
2-23
Procedure
To install line cards and reinstall the multislot filler plate:
1. Install a line card into the slot. It is recommended that you install BAC cards in
contiguous slots to optimize the cabling. Covering empty slots is required to
maintain EMI shielding and proper cooling.
2. Verify that the LEDs show proper operation (see Verifying the Installation on
page 2-27).
3. Tighten the screws to fasten the card to the chassis. It is recommended that
slight pressure be applied to the faceplate toward the left as you are tightening
the card screws. This will insure a good board-to-board EMI seal.
4. Repeat Step 1 through Step 3 for each line card being installed.
5. Slip the right side of the multislot filler plate (side without the EMI gaskets) into
the receptacle as shown below.
6. Ensure that a good EMI seal is made with the EMI gaskets on the left side of
the multislot filler plate by applying slight pressure to the left.
7. Replace the screws in the multislot filler plate to fasten it to the chassis.
ALARMS
Major Minor Fan B
A
POWER
5
48V R
TN
48V NEG
POWER ENTRY MODULE
LEFT UNIT: LINE A
RIGHT UNIT: LINE B
WARNING! POWER MUST BE DISCONNECTED A
T THE SOURCE BEFORE REMOVING OR INSTALLING THIS PWR ENTR
Y MODULE
48V R
TN
48V NEG
POWER ENTRY MODULE
LEFT UNIT: LINE A
RIGHT UNIT: LINE B
WARNING! POWER MUST BE DISCONNECTED A
T THE SOURCE BEFORE REMOVING OR INSTALLING THIS PWR ENTRY MODULE
DSL
SYSTEM
OK
Alm
Test
ETHERNET
TX
RX
Coll
DSL PORT
1
2
3
4
DSL
SYSTEM
OK
Alm
Test
ETHERNET
TX
RX
Coll
DSL PORT
1
2
3
4
DSL
SYSTEM
OK
Alm
Test
ETHERNET
TX
RX
Coll
DSL PORT
1
2
3
4
DSL
SYSTEM
OK
Alm
Test
ETHERNET
TX
RX
Coll
DSL PORT
1
2
3
4
04-17552
EMI
Gaskets
Multislot Filler Plates
Slot 18
Single
EMI-Gasketed
Filler Plate
DSL Cards
Slots 1–8
DSL Cards
Slots 10–18
Single
EMI-Gasketed
Filler Plates
SCP
SERIAL
CLOCK
A
ALARM
OUT
CLOCK
B
MCP
SERIAL
ALARM
IN
HUB-2
LAN
MCP
LAN
TAP
OUT
SCP
LAN
HUB-1
LAN
TAP
IN