Installing Boards into 2975-94xx Back Boxes (4100U/4100ES)
The relay modules can be mounted to either 4100 Back Boxes (PID series 2975-91xx) or 4100U/4100ES Back Boxes (PID series 2975-94xx) as follows:
• The 4120-3001, 4120-3002, and 4120-3003 are used for systems with 4100 Back Boxes.
• The 4100-3201 through 4100-3204 and 4100-3206 are used for systems with 4100U/4100ES Back Boxes.
This section describes mounting the 4100-3201 through 4100-3204 and 4100-3206 into 4100U/4100ES Back Boxes.
For instructions on mounting the 4010-9908 into a 4010ES back box, see Installing boards into 4010ES back boxes.
Installing 4100-3204 and 4100-3206 Cards
The 4100-3204 and 4100-3206 Relay Cards are designed to be mounted on the PDI in a 4100U/4100ES expansion cabinet. The card can be mounted
on any of the PDI connectors.
Use connector P1, labeled on the back side of the card, to connect to any of the eight PDI connectors as shown in Figure 6.
Figure 6: 4100-3204 and 4100-3206 Mounting
Installing 4100-3201 to 4100-3203 Motherboards into a 2975-94xx Master Controller Bay
Important:
The 4100-3201, 4100-3202, and 4100-3203 Relay Modules are non-power limited modules that cannot be placed inside the master controller bay
unless the proper wire separation can be achieved and maintained (per UL864).
Up to two 2" motherboards may be installed with the system CPU in the master controller bay. Note that only one 4100-3203 can fit in the master
controller bay, because the 4100-3203 motherboard takes up 4".
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.
page 8 579-220 Rev. F
4100/4120- Series and 4010ES Relay Modules Installation Instructions
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