LOB64 is an interface thought up by Life of Brian and mainly worked on by Mario. Several benheck members also contributed ideas.
What this is is a universal multiplayer port for Nintendo 64 portables. It has audio and video signals as well as controller signals. This port should be installed in most N64 portables (ESPECIALLY if you go to MGC or the ModRetro ComiCon event). It's very simple.
All that's required on your part is to include the port with the pins connected to the right places. It's very simple.
We decided to use ethernet ports because they have just the right amount of pins and can be found in lots of places. Ethernet ports and cables look like this:
You can get these from old laptops, ethernet cards, old computers, busted routers, or you could find one online. Just get one, and make sure it has 8 pins, not 4.
Now, here is the pinout for LOB64:
1. Composite Video
2. Left Audio
3. Right Audio
5. Player One Controller Data
6. Player Two Controller Data
7. Player Three Controller Data
8. Player Four Controller Data
Here is a visual schematic: (updated 5/22/10)
Note that the controller's data line is connected to the N64 and the port at the same time.
Here's how it works. One portable has a cartridge in and is sending out the video and audio signals, and receiving the controller signal from the other portable. The "master" portable is like an N64, controller, and TV, and the "slave" portable is like the second player controller and another TV.
I installed LOB64 in my portable. Here is the port, on top of my N64 portable:
About connecting cables. A regular ethernet cable can be easily modified to be a crossover cable for two players. All you have to do is re-direct the Player One Controller Data line from the slave portable to the Player Two Controller Data port on the master controller.
For three or more players, something called a Klobio Box must be used. Rekarp, Brian and Mario are still working on that, but it just switches the Player One Controller Data lines from players 2, 3, and 4 and puts them on the correct spots for the master portable. A video amp must be included in it, because sending a video signal 4 ways over long CAT-5 cable will result in a very dark picture.
Please consider putting this in your next N64 portable, and if you're ever going to MGC or ConiCon, it's a MUST. Come on! It'll be awesome.