I was just wondering if anyone can give me some insight into an issue I'm having with an 8X1 DiSEqC 1.2 compatible switch and 2 older Set top boxes, one a Phoenix 2800 and the other a Kaon KSF 200 (both DiSEqC 1 only). While both work very well with my 1.2 - 4 x 1 switches, neither works with the 1.2 - 8X1. I was under the impression that newer configurations were backward compatible, but I have found that only port A works on the older boxes, all others being ignored, when using the 8x1 switch. In other words, I lose 3 of the 4 sats I have hooked up.
All of my DiSEqCs work properly with the Strong box.
Is this a common issue with older STB's?
Cheers
OC
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G'Day Cobber,
If you carefully read the DiSEqC specifications, you will find that STBs, or better stated, their firmware is backward compatible, but not forward.
Simply put, the older firmware does not support the later switches.
Ipso facto, you could possibly find a later firmware for those STBs that would do the Job.
Unfortunately not too many manufacturers support this as it would require them to update their licence fee to (their name escapes me at the moment.)
Kindest Regards, " The Druid ".
PS:-
DiSEqC was developed by European satellite provider , which now acts as the standards agency for the protocol
Last edited by beer4life; 11-03-11 at 09:53 PM.
Thanks Beer.
I agree whole heartedly with you regarding the firmware upgrade. My issue however is that I lose sats when I replace a 4X1 switch with an 8X1. Both are 1.2 compatible, however, only position one (port A) is recognised on the older boxes. That would imply that the 8x1 DiSEqC is wire differently to the 4x1, otherwise the older box should ignore anything beyond the 4 ports it normally sees. They don't. They ignore every port beyond the first.
My question asked whether that was common or could it be an isolated issue with the brand of switch I have?
OC
Last edited by Optima Collins; 12-03-11 at 02:27 PM.
Perhaps it's more a case of luck that the DiSEqC 1.2 4X1 switches work with your DiSEqC 1 boxes, rather than a radical difference between the 4X1 & 8X1 switches, especially when they all work correctly on DiSEqC 1.2
Perhaps you're right. I discovered the problem when the kids broke the remote on the Strong and I replaced the box with the Phoenix. The T90 is hooked up via the 8X1 with only 4 LNB's active at the moment. I thought that even though the switch was 1.2, that it was backward compatible with the 1 protocol so it should be fine with the box, yet it wasn't. When I replaced it with the 1.2 4X1 it worked. Go figure!
Anyway, it means I can't freely move the boxes around without taking this into consideration. Not a big problem, just annoying.
Cheers
OC
G'Day Cobber,
Eutelsat control the protocol, not you. What you are experiencing is normal behavior. There is a vast amount of technical information on their site corroborating what I've already told you.
Perhaps this will convince you? I previously posted on the forum.
The Commands are different for 4 and 8 or 16 port devices.
Kindest Regards, " The Druid ".
mtv (12-03-11),Optima Collins (12-03-11)
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