Firewire IEEE 1394 Connector Pinout and Specification

[brianafischer]

I purchased the Adp-1394-Female from Directron here

Where can I find a reference to match the pins to my motherboard? I could do this with a multimeter I guess. I have a Gigabyte K8NS Pro and the following information is in the manual:
F1_1394 / F2_1394 (Front IEEE1394 Connector)
Be careful with the polarity of the IEEE1394 connector. Check the pin assignment carefully while you connect the IEEE1394 cable, incorrect connection between the cable and connector will make the device unable to work or even damage it.

F1_1394
Pin No. Definition
1 Power
2 Power
3 TPA0+
4 TPA0-
5 GND
6 GND
7 TPB0+
8 TPB0-
9 Power
10 Power
11 TPA1+
12 TPA1-
13 GND
14 No Pin
15 TPB1+
16 TPB1-

F2_1394
Pin No. Definition
1 TPA2+
2 TPA2-
3 GND
4 GND
5 TPB2+
6 TPB2-
7 No Pin
8 Power
9 Power
10 GND


I see a few discrepancies between the pin counts. It looks like F1 supports two firewire ports and F2 supports one. Assuming 3 ports, each has the following in common:
2x power
1 TPAn+, TPAn-, TPBn+, TPBn-

Here is the standard connector I got from the hardware book
6 PIN IEEE1394 (with Power)
Pin Name Description
1 Power Unregulated DC; 30 V no load
2 Ground Ground return for power and inner cable shield
3 TPB- Twisted-pair B, differential signals
4 TPB+ Twisted-pair B, differential signals
5 TPA- Twisted-pair A, differential signals
6 TPA+ Twisted-pair A, differential signals
Shell Outer cable shield


The problem I have is that there are not a consistent number of GND connections, but I see that F1_1394 and F2_1394 both have 3 GND connections.

Question 1: why are there 2 power connections/port and where do these connect to on the 6-pin port?
Question 2: where do the GND connections go?

Thanks,
Brian

 

[imported_ceefka]

Looks like you've been deserted.

It may be a bit late, but I was having similar difficulties with mounting a Gigabyte board into a P510. The female connector on the P150 was Intel standard. The pinheader on the Gigabyte was not. There's no help from Antec nor Gigabyte.

I googled around and found http://www.vntek.com/en/support/pdf/1394_1.pdf about modifying your female connector. If a noob like me can do that, you certainly can.

On my GA8KNF9 Ultra the 16-pin supports the rear FW 400/800 bracket (on which there are also 2 USB ports. You use either the 9 or the 6 pin socket, not both. The splitting is done within the cabling of the bracket. No need to go there. The 10- pin header can be used for your front FW400 socket.

Good luck.