Power Distribution Schemes - PCIe/104 Products
The power distribution scheme has two distinct distribution networks:
| ● | The main power distribution network |
| ● | The camera power distribution network |
Note: The fuses are not serviceable! When blown, the card must be returned to the factory.
Note: PTCs and electronic fuses are self-resettable fuses.
Note: The Coaxlink card can be operated without applying power to the camera power distribution network.
The main power distribution network delivers power to all the on-board electronic devices including FPGA, memory chips, CoaXPress transceivers, I/O drivers and receivers, fan motor.
It also delivers +3.3V and +12V to the
| ● | The +3.3V is used for powering the on-board electronics: I/O drivers, I/O receivers |
| ● | The +12V is used for delivering power on the I/O connector. A PTC inserted at the input prevents potential fire hazards. |
The network is fed by the Host PC through the +12 V power rail of the PCIe/104 connector. A protection fuse prevents potential fire hazards. The +12V LED indicates the presence of +12V after the protection fuse.
The board status LED reflects the global status of all the power converters of the main distribution network.
The auxiliary power distribution network delivers power to the CoaXPress cameras using the PoCXP capability available on all connections of the CoaXPress Host connector.
The network is fed by a 24 VDC external power supply attached to the camera power input connector using a power cable terminated by a 4-pin Molex plug connector. A protection fuse inserted at the input side prevents potential fire hazards.
The 24-volt DC power is applied to each camera connection through a PoCXP transmitter unit. Each PoCXP transmitter unit implements an electronic fuse/switch. A PTC inserted at the input of each transmitter unit prevents potential fire hazards.