Connectors Description; External Power (J1300); Fan/12 V Internal Power Connector (J1302); J1300 - External Power Connector - Enclustra Mars EB1 Base Board User Manual

4 Connectors Description

4.1 12 V External Power (J1300)
This connector is used to supply the main VCC input voltage.
Apply only 12 V DC to this connector.
Pin Number Signal Name
1 (inner) VCC_12V_IN
2 (outer) GND
Table 6: J1300 - External Power Connector
Type
PJ-102AH
Table 7: J1300 - External Power Connector Type
The inner and outer diameters of the mating plug are 2.0 mm and 5.5 mm respectively.
4.2

Fan/12 V Internal Power Connector (J1302)

The Mars EB1 base board can alternatively be powered through the internal power input connector. The 12
V DC power source connected to J1302 must be filtered by external power circuitry.
If the external power input is used, this connector can be used to equip a 12 V fan with a sense signal to the
Mars EB1 base board.
Pin Number Signal Name
1 GND
2 VCC_MAIN
3 SYSMON_TACHO
Table 8: J1302 - Fan/Internal Power Connector
Type Manufacturer
61900311121 Würth Elektronik
Table 9: J1302 - Fan/Internal Power Connector Type
Warning!
Do not short circuit the 12 V power supply, and make sure the currents flowing through the pins of this
connector do not exceed 2.0 A. Otherwise, the PCB may be damaged.
D-0000-307-001
Manufacturer
CUI Inc.
Description
Ground
12 V DC (nominal) input voltage
Sense signal to determine fan speed. See Section 6.7 for details
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Description
12 V DC (nominal) input voltage
Ground
Version 06, 22.07.2021