Power Distribution Board Interface Connectors (J9B1, J9D1, J9B2)
The SKA4 Baseboard receives its main power through two primary and one auxiliary power connectors. The two main power connectors are identified as J9B1 and J9D1. The auxiliary power connector, identified as J9B2, provides a power subsystem communication path, control signals, power supply sense connections and other miscellaneous signals defined in the table below.
Table 48. Main Power Connector A (J9B1)
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| Current Carrying |
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Pin | Signal | Type* | Capability | Description |
1 | 12V | power | 6 Amps | Power supply 12V |
2 | Ground | ground | 6 Amps | Ground return connection |
3 | Ground | ground | 6 Amps | Ground return connection |
4 | Ground | ground | 6 Amps | Ground return connection |
5 | Ground | ground | 6 Amps | Ground return connection |
6 | VCC | power | 6 Amps | Power Supply 5V |
7 | VCC | power | 6 Amps | Power Supply 5V |
8 | VCC | power | 6 Amps | Power Supply 5V |
9 | VCC | power | 6 Amps | Power Supply 5V |
10 | VCC | power | 6 Amps | Power Supply 5V |
11 | SB5V | power | 6 Amps | Power Supply 5V standby |
12 | Ground | ground | 6 Amps | Ground return connection |
13 | Ground | ground | 6 Amps | Ground return connection |
14 | Ground | ground | 6 Amps | Ground return connection |
15 | Ground | ground | 6 Amps | Ground return connection |
16 | VCC | power | 6 Amps | Power Supply 5V |
17 | VCC | power | 6 Amps | Power Supply 5V |
18 | VCC | power | 6 Amps | Power Supply 5V |
19 | VCC | power | 6 Amps | Power Supply 5V |
20 | VCC | power | 6 Amps | Power Supply 5V |
*Type (in, out, in/out, power, ground) is from the perspective of the baseboard.
92 | SKA4 Baseboard Product Guide |