Simplex VESDA 4100 Series Installation Instructions Manual page 6

Installing the Motherboard into 2975-91xx Back Boxes (4100)
Overview
The VESDA motherboard can be mounted to either 4100 Back Boxes (PID series 2975-91xx) or
4100U/4100ES Back Boxes (PID series 2975-94xx).
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This section describes mounting the 4100/4120-0154 version into 4100 Back Boxes.
Installing into a
Use the following guidelines and instruction when installing into a master controller bay.
2975-91xx Master
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Controller Bay
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Install the motherboard as described below.
1. Orient the motherboard so that the connector labeled J1 is on the right and the header
2. Slide the motherboard you are installing to the left until the pins are completely inserted
3. Secure the motherboard to the chassis with four torx screws.
P1
The 4100/4120-0154 is used for systems with 4100 Back Boxes.
The 4100-6048 is used for systems with 4100U /4100ES Back Boxes
If the 575-274 Master Motherboard is used, it must be installed in the leftmost position of
this bay. If the 575-274 Master Motherboard is not used, the CPU motherboard must be
installed in the leftmost position of the bay.
The power supply must be installed in the rightmost position of the bay.
Relay cards must be installed in the slots immediately to the left of the power supply.
This is necessary to allow for the proper routing of non-power limited wiring (120 VAC
wiring connected to the relay card).
If used, the Class B motherboard (575-275) must be installed to the left of the relay cards.
If a physical bridge is used with the Class B motherboard, it must be to the right of any
motherboards using NICs. This allows for earth ground detection via the physical bridge.
labeled P1 is on the left.
in the connector of a previously installed motherboard.
CPU or 575-274
Motherboard
J1
Figure 3. Installing the Motherboard into a 4100 Master Controller Bay
The motherboard can be installed in any of these
slots. If the bay has relay cards, they must be
installed to the immediate left of the power supply.
6
Power
Supply
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