Motherboard FireWire Ports

Similarly, many modern-day motherboards provide a pin header that allows connection to a front-mounted IEEE-1394 port.

FireWire

With this system case, there are six wires coming from its front-mounted IEEE-1394 port. These consist of two sets of twisted pair cables (TPA and TPB), a power cable (VP) and a ground cable (VG).

 

The Intel Front Panel Connectivity Guide recommends the following design for a front-mounted IEEE-1394 connectors. If your motherboard is a recent design, it’s likely it will be identical, or at least similar.

IFPCG
Pin Signal name Pin Signal name
1 TPA+ 2 TPA-
3 Ground 4 Ground
5 TPB+ 6 TPB-
7 +12V (Fused) 8 +12V (Fused)
9 Key 10 Ground
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