Last updated: 21 January 2005
Sent: Friday, January 21, 2005 12:16:01 From: Damian Kessler (DKessler@sbs.com) Tip: Here's a way to power the handbox without having to be plugged into the mount. This makes it easier to update the firmware, and familiarize yourself with the menu, or just sit and play with it. You'll need an ethernet patch cable(like phone jack end connectors but larger), two 9volt battery connectors with wires(from Radio Shack or similar), and electrical tape. 1. Cut off one end of the Ethernet cable so you have a convenient length. Strip back the outer sheath to expose the wires. 2. Strip the plastic insulator off maybe inch of each wire on the 9volt battery connectors to expose the copper wire inside. The two battery connectors have two red and two black wires. Twist both red wires together and then twist the black wires together to connect red to red and black to black. 3. Take a careful look at the connector on the end of your Ethernet cable to find out which color wire corresponds to the outer two connections. This link: http://jan.eaglecreekobservatory.org/pinouts.html is extremely helpful for final wiring. Keep in mind that the Patch cable diagram is looking at the END of the cable. The best way to do this would be to use an Ohmmeter to verify the wires. 4. Once you've separated the two wires corresponding to Pin 1 and Pin 8 on the cable, you can cut off or tape over the other wires on the cable since you don't need them. Strip the two wires to expose about inch of copper wire. 5. If you get this step backwards, you'll fry your handbox! Twist the black wires of the battery connector to the wire connected to pin 1 of the patch cable. Twist the red wires of the battery connector to the wire connected to pin 8 of the patch cable. 6. Looking at the handbox (HBX) connector, this puts the + side of 9 volts to pin 1 of the hand box and the - side to pin 8 of the handbox. Verify it before you plug it in! Separate each wire and tape over them and you're done. This works quite well and provides more than enough current for the time needed during an upgrade/download. Soldering the wires together is much better but not everyone can do that. Damian KesslerMike here: Link above via the Wayback Machine.
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