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To install Cronus Fiber Option Card, you must remove the Coaxial connectors. To remove the coaxial con-
nectors, do the following:
1. Remove the Cronus top cover.
2. From the right side of the unit, remove the two backcards (when viewed from the rear of the unit).
3. Remove the rear panel screws (2) on from the coaxial connector plate.
4. Disconnect the coaxial cables from the backplane (J19, J20, J21, and J22).
5. Gently remove the coaxial connector backplate from the unit.
Once you have removed the coaxial cable backplate, you can replace it with the Fiber Option Card. To
install the Fiber Option Card, do the following:
NOTE: Refer to figure 1 for connectors, spacers and screw placement.
1. Connect the coaxial connectors (provided with the kit) to the Fiber Option Card at J1, J2, J3, J4.
2. Connect the power connector (J5) on the Fiber Option Card to the MC backcard (J8). Press gently
into the provided spacers.
NOTE: There are 4 spacers in which the Fiber Option Card is attached. When attaching the Fiber Option
Card, if the screws do not insert smoothly into the spacers, check the alignment of the power connector to
the MC backcard pin placement. If the card is not properly seated on the MC backcard, the screws will not
go into the spacers easily.
3. With the screws provided, attach the Fiber Option Card to the spacers on the MC backcard.
4. Attach the Fiber Option Card backplate to the rear panel with the screws provided (there are two
screws).
COAXIAL
CONNECTOR
Figure 1. Cronus Reference
38110-452 REV A
Cronus Fiber Option Card Kit
Installation Instructions
J4
J3
J2
J1
J5
SPACERS
J8
5.
Using the wiring diagram, connect the
coaxial connectors to the correct
backplane connectors (see Table 1).
6.
Replace the AIO backcards.
7.
Replace the cover on Cronus.
F
B I
E
R
O
P
I T
O
N
C
A
R
D
J
1
J
2
J
3
J
4
Table 1. Fiber Option Card Wiring
C
R
O
N
U
S
B
A
C
K
P
L
A
N
E
J
2
2
J
1
9
J
2
0
J
2
1
3/2005
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