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Hotwire DSL System Description
1-5
8000-A2-GB20-50
April 2000
H The Hotwire 8820 GranDSLAM is a 20-slot chassis with integral power,
alarm, cooling, and interface subsystems designed to house up to 17 DSL
cards, as well as an SCM card for aggregating DSL traffic to an ATM uplink
and an MCP card. Layer 3 systems do not use SCM card functionality. Also
for Layer 3 systems, the 8820 GranDSLAM houses 8546 cards only, not
8540 cards. For more information, see the Hotwire GranDSLAM Installation
Guide.
00-16573-01
MCP
Card
Front View of a Hotwire 8820 GranDSLAM Chassis
ALARMS
Major M
inor
FanB
A
POWER
S
E
R
I
A
L
S
M
C
M
C
L
O
C
K
A
A
L
A
R
M
2
4
6
8
1
0
1
2
1
4
1
6
1
8
1
35
7
9
1
1
1
3
1
5
1
7
L
A
N
/
W
A
N
S
L
O
T
B
C
L
O
C
K
B
A
S
E
R
I
A
L
M
C
C
A
C
A
L
A
R
M
48V RTN
48V NEG
PO
W
ER
EN
TR
Y
M
O
D
U
LE
L
EF
T U
N
IT: L
IN
E
A
R
IG
H
T U
N
IT: L
IN
E
B
WARNING!
POWER MUST BE DISCONNECTED AT THE SOURCE
BEFORE REMOVING OR INSTALLING THIS PWR ENTRY MODULE
48V RTN
48V NEG
P
O
W
E
R
E
NT
R
Y M
O
D
U
L
E
L
EF
T U
N
IT
: L
IN
E
A
RIG
H
T UN
IT
: L
IN
E
B
WARNING!
POWER MUST BE DISCONNECTED AT THE SOURCE
BEFORE REMOVING OR INSTALLING THIS PWR ENTRY MODULE
DSL
SYSTEM
OK
Alm
Test
E
T
H
E
R
N
E
T
TX
RX
Coll
DSL PORT
1
2
3
4
MCP
S
Y
STE
M
O
K
Alm
Test
E
T
H
E
R
N
E
T
TX
R
X
C
oll
DSL
Card