Specifications

Reference Guide 1-3
System Overview Chassis Types
1.2.2 Front-Loading Chassis with Power Supplies on Top
Figure 1-2 shows the front-loading chassis with power supplies on top. This is a tall chassis in
which the two power supply slots are in the upper right. This chassis is made of steel and has
punched-steel card guides.
This chassis has three server card slots (P1 to P3), four WAN card slots (W1 to W4), and eight
user card slots (U1 to U8). Slots F1 and F2 accommodate up to two power supplies, and slots
R1 to R5 hold up to five AC-to-DC power converters or ringing generators.
Table 1-2 shows the card slots for the front-loading chassis with the power supplies on top.
Use that table to determine your chassis card configuration.
Figure 1-2. Front-Loading Chassis with Power Supplies on Top
A
C
R
G
R
V
N
V
B
+
+
+
-
-
-
C
O
M
V
A
C1 C2 P1 P
2
P
3
W
1
W
2
W
3
W
4
I
F
U
1
U
2
U
3
U
4
U
5
U
6
U
7
U
8
1
2
3
E
U
R
/
U
S
J
P
1
R1 R2
R
3
R
4
R
5
F
1
F
2