ootnitsuj
03-14-08, 06:01 AM
Hi all,
Recently, I have purchased a single length (2m) 1394b cable, with both ends terminated with the standard 1394b 9-pin connector. One 9-pin connector will go to a media storage device, and the other to my laptop.
Due to design constraints, I have to split this length of cable into two equal halves, and connect them back at an interface plate. Instead of splicing them together (which I cannot due to design constraint), I have to use round mil connectors. In other words, after cutting the 1394b cable, both loose ends will be terminated with round mil connector. These two connectors will then be connected back together at the interface plate.
The result is that my laptop is unable to detect my media storage device. I am puzzled why this does not work?
1394b should be able to support up to 100m of device to device connection and this is merely 2m. For the media storage device, only 4 pins are connected, namely the TPA+, TPA-, TPB+ and TPB-. Have I missed out something here? Is it that I cannot split up a 1394b cable just like that, and re-join them back using pins and sockets? I understand that 1394b cable is "peer to peer", so there should be no requirement to connect up the power pin. But am I right on this?
I hope someone can help me with this. Please feel free to request for more information from me if there is a need.
Thank you in advance for all the suggestions and help.
Recently, I have purchased a single length (2m) 1394b cable, with both ends terminated with the standard 1394b 9-pin connector. One 9-pin connector will go to a media storage device, and the other to my laptop.
Due to design constraints, I have to split this length of cable into two equal halves, and connect them back at an interface plate. Instead of splicing them together (which I cannot due to design constraint), I have to use round mil connectors. In other words, after cutting the 1394b cable, both loose ends will be terminated with round mil connector. These two connectors will then be connected back together at the interface plate.
The result is that my laptop is unable to detect my media storage device. I am puzzled why this does not work?
1394b should be able to support up to 100m of device to device connection and this is merely 2m. For the media storage device, only 4 pins are connected, namely the TPA+, TPA-, TPB+ and TPB-. Have I missed out something here? Is it that I cannot split up a 1394b cable just like that, and re-join them back using pins and sockets? I understand that 1394b cable is "peer to peer", so there should be no requirement to connect up the power pin. But am I right on this?
I hope someone can help me with this. Please feel free to request for more information from me if there is a need.
Thank you in advance for all the suggestions and help.