Last updated: 22 August 2005
Sent: Sunday, August 21, 2005 09:05:44 From: firstname.lastname@example.org (email@example.com) Through various returns and replacements, I have two Autostars and three of the special coiled Autostar cables. I use a standard Cat 5 Ethernet extension cable to allow using the Autostar at a distance from the scope. As I'm sure you know, you can not use an Ethernet cable directly because of the connector wiring, so I have an RJ45 inline coupler between the Autostar cable and the Ethernet cable. In this configuration, I have had problems with two of the Autostar cables. Specifically, when they "click" into position in the coupler they do not make full electrical contact. The same thing happens when I connect them to an RJ45 jack I have wired to a battery pack I use for power when I install an update with ASU and don't want to move the scope to the computer. I found that by pushing the connector into the jack after it is already locked, it works. On close inspection of the connectors and cables, it is apparent that there are minor differences. In fact, one of the cables has a different color coding for the wires. All this leads me to believe Meade uses various suppliers for their cables, connectors and the RJ45 jacks in the scope and Autostar, and not all are identical. There are several parameters that can vary between supposedly identical components, e.g. the depth of the contacts in the connector, and the angle of the contact wires in the jack. Also, as shown in the attached photo, the design of the face of the connector that determines how far it enters the jack before locking into place. These are very small things, but together they can affect the quality of the electrical connection.
I've rambled long enough. As I said in an earlier email, your site keeps my brain from vegetating, and my whole career has been understanding how things work, and why they don't when they should. Best Regards, Mike Hogan
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