Installing Motherboards into 2975-94
xx
Back Boxes (4100ES)
The dual RS-232 module mounted to 4100ES Back Boxes (PID series 2975-94
xx
).
• The 4100-6038 version is used for systems with 4100ES Back Boxes.
This section describes mounting the 4100-6038 version of the module into 4100ES Back Boxes.
Installing into a 2975-94
xx
CPU Bay
Up to two motherboards may be installed with the system CPU in the CPU bay. Use the following directions to mount a motherboard into a CPU
bay.
1.
Orient the motherboard with the connector labeled J1 on the right and the header labeled P1 on the left.
2.
Slide the motherboard to the right until the pins from P1 on the motherboard to the right are completely inserted in the motherboard's J1
connector.
3.
Attach four lockwashers and metal standoffs to the chassis, and secure the motherboard to the chassis using four #6 screws
Figure 4: Installing the Motherboard into a 4100ES CPU Bay
Installing into a 2975-94xx Expansion Bay
When installing 2 (51 mm) x 11 ½-inch (292 mm) motherboards in a 4100ES expansion bay, adhere to the following guidelines:
• Each expansion bay assembly includes a chassis, two end supports, one LED/switch frame, and a power distribution interface (PDI) board.
• An expansion bay holds up to eight 4-inch (102 mm) x 5-inch (127 mm) modules. A double-size module, such as the ES power supply (ES-XPS
or ES-PS), takes up two blocks of space as shown below.
• Up to seven 2 (51 mm) x 11 ½-inch (292 mm) motherboards can be installed in an expansion bay
if no 4-inch (102 mm) x 5-inch (127 mm)
modules are installed in the bay
. Motherboards are mounted on top of the PDI in expansion bays. The data and power that would normally
be bussed via the PDI is instead routed across the boards via ribbon cable from one board to the next.
• As shown in the figure below, motherboards can be installed alongside 4-inch (102 mm) x 5-inch (127 mm) cards, if necessary.
• The leftmost slot must not contain a motherboard.
• 4-inch (102 mm) X 5-inch (127 mm) cards must be added from right to left.
• Motherboards must be added from left to right.
page 5
579-221 Rev. F
4100-6038 Dual RS-232 Module Installation Instructions
