2. Installation
2-22
March 2001
8820-A2-GN20-30
Procedure
To install a DSL card:
1. If you are installing the DSL card into Slot 18, remove the single filler plate and
store it in a safe place. If you are installing a DSL card into a slot other than
Slot 8 or 18, see
Installing DSL Cards into Slots 1–6 and 10–17
before continuing with this procedure.
2. Hold the DSL card vertically and insert it into the top and bottom card guides
of the desired slot. For example, insert the card into Slot 8 as illustrated below.
3. Slide the DSL card into the slot. Gently but firmly push the card until it properly
seats in its mating connectors on the backplane.
CAUTION:
Do not force the DSL card into the slot. If it does not seat properly,
remove the card and reinstall it. If it still does not seat properly, call
service.
4. The DSL card will now perform a power-on self-test. All of the LEDs turn ON
and OFF briefly. When the self-test is completed successfully, the SYSTEM
OK LED will turn ON. Make sure the SYSTEM OK indicator on the DSL card
faceplate is blinking green.
For a more detailed explanation of LEDs on the DSL card, refer to the
appropriate DSL card documentation.
5. Secure the DSL card by tightening the top and bottom screws on the faceplate
while applying slight pressure to the left to insure a good seal. This is required
to maintain proper gasket pressure on the faceplate.
NOTE:
If a new DSL card is not installed in this slot, a gasketed, single filler plate must
be installed to provide shielding and proper air flow.
ALARMS
Major Minor
Fan
B
A
POWER
SERIAL
SMCM
CLOCK
A
ALARM
2
4
6
8
10
12
14
16
18
1
3
5
7
9
11
13
15
17
LAN/WAN SLOT
B
CLOCK
B
A
SERIAL
MCC
AC
ALARM
48V R
T
N
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
T
N
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
DSL
SYSTE
M
OK
Alm
Test
ETHERN
ET
TX
RX
Coll
DSL PO
RT
1
2
3
4
MCP
SYSTEM
OK
Alm
Test
ETHERNE
T
TX
RX
Coll
00-16259a-02
Slot 8
DSL
SYSTE
M
OK
Alm
Test
ETHERN
ET
TX
RX
Coll
DSL PO
RT
1
2
3
4
DSL Card
Slot 18