Results 1 to 9 of 9

Thread: MacMini P1900 Fuses, Ignition, Positioning Quesions

  1. 01-13-2007, 04:01 AM #1
    CaptainTrap
    CaptainTrap is offline
    Newbie
    Join Date
    Jan 2007
    Posts
    43

    MacMini P1900 Fuses, Ignition, Positioning Quesions

    Question 1: In this diagram http://www.carnetix.com/p1900/mm_app.htm
    there is a yellow wire labeled "Ignition." Where does this connect
    on the car end (remote wire on radio harness?) and does the
    p1900 come with this wire?

    Question 2: I have a 4guage power wire running from my car battery to a
    distro block which then provides power to my amp and the
    P1900. Now I have an 80amp inline fuse a few inches away from
    the battery terminal. My question is that the P1900 requires a
    15amp fuse to be installed in the power line, but because my
    power line is comming from the distro block should i install a
    second 15amp fuse between distroblock and p1900?

    Question 3: I am brainstorming places to mount these components. Does
    anyone think if I mount my enclosed P1900 directly behind my lcd
    touch screen in my dash (if i have enough room) it will cause
    interference between the two components? I am thinking of
    installing the mac mini under my touch screen about 4 inches.
    With these three components so close together, will this cause
    any interference?

    Tangent Question: If I have an inline fuse on each end of my power line would this cause any problems? Exe: Battery > power line (4in) > 80amp Fuse > power line (12ft) > Inline Fuse w/ amp and volt digi monitor. I obviously want to use the second inline fuse box for its amp and volt monitor as i think the fuse part of this box is unnecessary. View item here for more details http://cgi.ebay.com/ws/eBayISAPI.dll...3415&rd=1&rd=1
    Reply With Quote Reply With Quote
  2. 01-13-2007, 09:53 AM #2
    MikeH
    MikeH is offline
    FLAC
    Join Date
    Nov 2003
    Location
    Marietta, GA
    Posts
    1,134
    I obviously want to use the second inline fuse box for its amp and volt monitor as i think the fuse part of this box is unnecessary.
    If you just want to measure you input voltage and current, spend your extra $30 on the CNX-P2140 and use the PSUmoni2140 to make these measurements.
    Question 1:
    We provide "pigtail" input/output connectors that allow you to attach to your ingition wire. You'll need to search for a suitable "ignition" wire in your car.
    Question 2:
    In general, each time you downsize from one wire gauge to a smaller gauge you'll need to add a fuse at that junction point. This is to protect shorts on the smaller wire since it would burn long before you 80A fuse popped.
    Question 3:
    There's no good way to tell without trying. Both units tend to be electrically "noisy", however wiring will be as important, or more important, than mounting proximity.
    MikeH
    Reply With Quote Reply With Quote
  3. 01-13-2007, 09:55 AM #3
    pepsibobby
    pepsibobby is offline
    Maximum Bitrate pepsibobby's Avatar
    Join Date
    Dec 2005
    Location
    Kaiserslautern Germany
    Posts
    648
    Send a message via AIM to pepsibobby
    1. that hooks up to the key ignition line. hook it up directly for best performance. yes it comes with all the wireing you need. you might need some extensions cause they are short, but yes it has it.
    2. yes put the fuse in.
    3. i have my P1900 about 10inches from my screen and 12 inches from my mini and i dont have any problems
    Cant code cause I dont know how, but give me the paint bucket and my eraser and have at you!
    Reply With Quote Reply With Quote
  4. 01-13-2007, 02:27 PM #4
    CaptainTrap
    CaptainTrap is offline
    Newbie
    Join Date
    Jan 2007
    Posts
    43
    thank you for all the help. I will spend the extra for the P2140.
    Reply With Quote Reply With Quote
  5. 01-13-2007, 10:44 PM #5
    Bugbyte
    Bugbyte is offline
    Admin. Linux loser.
    Auto Apps:loading...
    Bugbyte's Avatar
    Join Date
    Sep 2004
    Location
    Corning, NY
    Posts
    7,364
    Blog Entries
    2
    Send a message via AIM to Bugbyte
    Quote Originally Posted by MikeH View Post
    If you just want to measure you input voltage and current, spend your extra $30 on the CNX-P2140 and use the PSUmoni2140 to make these measurements.
    Whoa! That is a sweet unit! I certainly hope the PSUmoni software is OSX compatible? Hmmm????
    Quote Originally Posted by ghettocruzer View Post
    I was gung ho on building a PC [until] just recently. However, between my new phone having internet and GPS and all...and this kit...Im starting to have trouble justfiying it haha.
    Want to:
    -Find out about the new iBug iPad install?
    -Find out about carPC's in just 5 minutes? View the Car PC 101 video
    Reply With Quote Reply With Quote
  6. 01-14-2007, 12:14 PM #6
    iamgnat
    iamgnat is offline
    CarFrontEnd Creator iamgnat's Avatar
    Join Date
    Jul 2004
    Location
    NoVA
    Posts
    867
    Send a message via AIM to iamgnat
    Quote Originally Posted by Bugbyte View Post
    Whoa! That is a sweet unit! I certainly hope the PSUmoni software is OSX compatible? Hmmm????
    Or better yet, how about an Objective-C framework so we put the info in our own apps?

    -dave
    My pathetic worklog.
    CarFrontEnd (now it's own sub-forum!!!!)
    Reply With Quote Reply With Quote
  7. 01-14-2007, 02:40 PM #7
    Bugbyte
    Bugbyte is offline
    Admin. Linux loser.
    Auto Apps:loading...
    Bugbyte's Avatar
    Join Date
    Sep 2004
    Location
    Corning, NY
    Posts
    7,364
    Blog Entries
    2
    Send a message via AIM to Bugbyte
    Even better! Mike, what type of USB device is it? If we can find a driver for it, we can access the device.
    Quote Originally Posted by ghettocruzer View Post
    I was gung ho on building a PC [until] just recently. However, between my new phone having internet and GPS and all...and this kit...Im starting to have trouble justfiying it haha.
    Want to:
    -Find out about the new iBug iPad install?
    -Find out about carPC's in just 5 minutes? View the Car PC 101 video
    Reply With Quote Reply With Quote
  8. 01-14-2007, 04:16 PM #8
    iamgnat
    iamgnat is offline
    CarFrontEnd Creator iamgnat's Avatar
    Join Date
    Jul 2004
    Location
    NoVA
    Posts
    867
    Send a message via AIM to iamgnat
    Will you port the PSUmoni2140 application to the Mac?

    -dave
    My pathetic worklog.
    CarFrontEnd (now it's own sub-forum!!!!)
    Reply With Quote Reply With Quote
  9. 01-14-2007, 04:54 PM #9
    iamgnat
    iamgnat is offline
    CarFrontEnd Creator iamgnat's Avatar
    Join Date
    Jul 2004
    Location
    NoVA
    Posts
    867
    Send a message via AIM to iamgnat
    Even more bad news
    I talked to Mike about offering to write the frontend and/or framework for him, but the PIC he is using that does the USB communication doesn't have a Mac driver.

    Damn. A few weeks ago I had to replace my battery and was thinking that I really wanted something that could help me know ahead of time that it was going dead. This really got my hopes up

    -dave
    My pathetic worklog.
    CarFrontEnd (now it's own sub-forum!!!!)
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »

Similar Threads

  1. P1900 ignition wire
    By super-fly in forum Power Supplies
    Replies: 4
    Last Post: 04-15-2006, 08:29 AM
  2. P1900 - ACPI with ignition or pulse
    By upspace in forum Power Supplies
    Replies: 2
    Last Post: 12-26-2005, 12:01 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules