Ross PS-8102, User Manual, Page: 22 / 32

3–2 • Optional Field Upgrade Kits DFR-8110A(-C) User Manual (Iss. 03)
CFM-8110A Cooling Fan Overview
The standard equipment, DFR-8110A, can be also be ordered as the DFR-8110A-C version, with
the Cooling Fan Module installed as original equipment from the factory. However, for customers
wishing to increase the ventilation on their standard DFR-8110A frames, the optional
CFM-8110A Cooling Fan Module is available as a field upgrade kit
Figure 3.1 CFM-8110A Cooling Fan Module
Installing the CFM-8110A
Use the following procedure to install the CFM-8110A in a DFR-8110A:
1. Insert the Power Carrier Board (8110A-017) into the Frame Motherboard on the
left-hand inside rear by ensuring all six pins, or three connectors, are properly aligned,
and carefully fit into the sockets.
• It is helpful to straighten the pins if they have been bent during shipping and
handling, and to remove any modules from the frame that would interfere with easy
access and lines of sight.
2. Secure the Power Carrier Board to the side of the frame by inserting the two Screws
(850-075) provided, from the left side of the frame exterior. In mobile applications,
secure screws with Loctite.
3. Remove the protective film from both sides of the clear plastic Air Blocker
(8110-314-01), and install it onto the door using the two Nuts (650-005) provided.
4. Place the Fan Filter (S958-006) onto the door
5. Install the Fan PCB (8110A-330) on the door, ensure that alignment of the Fault and Fan
Fail LED's is correct, and secure it with the four Nuts (650-005) provided.
6. Close the door and check the operation of the fans.
• If the fans do not operate, verify that the Power Carrier Board seats properly in the
Frame Motherboard, and is aligned to the Fan PCB when the door is closed.
This completes the procedure for installing the CFM-8110A in a DFR-8110A.
Frame Motherboard
Connector and Socket
Nuts - 6 total
(Part No. 650-005)
Air Blocker
(Part No. 8110-314--02)
Fault and
Fan Fail LED's
(underside of Fan PCB)
Connector
and Socket
Power Carrier Board
(Part No. 8110A-017)
Fan PCB
(Part N0. 8110A-330)
Fan Filter
(Part No. S958-006)
-between Fan PCB and door
Screws - 2 total
(Part No. 850-075)
Card Retainer Bracket
(Part No. CRB-8110A)
-optional