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Assembling, checking and/or re-configuring your Firewire cable


This page provides instructions for assembling our firewire cables which have 2x5 way pin header connectors at both ends.

These cables can be used to connect a device to the the pin header on a motherboard or PCI card or to connect up front panel Firewire ports.

Firewire pin header to pin header cable



Information you will need


Each wire in the Firewire cable must be connected to the correct pin on the firewire pin header connector or front panel connection port.

Unfortunately there is no standard layout for the pins on firewire pin headers so each cable must be configured to suit your own equipment. This is quite easy and should only take a few moments.

Your equipment manufacturer will include a diagram of the firewire pin header with a label next to each pin. The table below shows the symbols used.

Label
VP,Voltage+or Vcc
G,GND,Ground
TPA+
TPA-
TPB+
TPB-


You will need to consult your equipment documentation or the manufacturer's website where you will find a diagram which labels each pin on the firewire connector. The cable can then be configured using the instructions below.

Note: The fitting instructions for these cables depend on whether you are using the cable to install a Firewire device or connect a front panel firewire port. Please click on one of the links below to select the appropriate instructions.

Device Connection: click here if you are using the cable to connect a firewire device

Front panel port connection: click here if you are using the cable to connect up a front panel firewire port



Configuring the cables for device connection


These instructions should be used when you are using the cable to install a firewire device.

At one end of the cable you should insert the pins into the connector so that the wires are connected as shown in the table below.

First 2x5 way connector configuration table

wire Pin
White VP,Voltage+ or Vcc
Black G,GND,Ground
Blue TPA+
Orange TPA-
Green TPB+
Red TPB-


At the other end of the cable you should insert the pins into the connectors so that the wires are connected as shown in this table :-

Second 2x5 way connector configuration table

Wire Pin
White VP,Voltage+ or Vcc
Black G,GND,Ground
Blue TPB+
Orange TPB-
Green TPA+
Red TPA-


Your firewire pin headers may also have a pin labelled S-GND or S-ground. If this pin is present you should connect the extra (slightly thicker) black wires to this pin. If there is no S-ground pin this wire can be left unconnected.

Once you have inserted the pins into the connectors according to the above tables you just need to make sure that the connectors are plugged onto the pin headers in the correct orientation. To do this just make sure that the white wire is alligned with the pin labelled VP,Voltage+ or Vcc.



Configuring the cables for front panel port connection


When you are using these cables to connect a front panel fire wire port you should insert the pins into the connector so that the wires at both ends of the cables are connected as shown in the table below.

2x5 way connector configuration table

wire Pin
White VP,Voltage+ or Vcc
Black G,GND,Ground
Blue TPA+
Orange TPA-
Green TPB+
Red TPB-


Your firewire pin headers may also have a pin labelled S-GND or S-ground. If this pin is present you should connect the extra (slightly thicker) black wires to this pin. If there is no S-ground pin this wire can be left unconnected.

Once you have inserted the pins into the connectors according to the above tables you just need to make sure that the connectors are plugged onto the pin headers in the correct orientation. To do this just make sure that the white wire is alligned with the pin labelled VP,Voltage+ or Vcc.



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