Recent content by MarkJames

Well, the new M1XIN arrived yesterday. I swapped it out and all works fine again. I guess that answers that question. Thanks for the help mark

Thanks. I've gone ahead and ordered a replacement. mark

I have an M1XIN that is connected to an M1DBHR. It shares a port with a keypad. Both the keypad and M1XIN have worked fine for years and I've made no changes recently so I don't suspect address conflicts etc. The keypad still works fine so I know that the port is working. I seem to have...

Success!   Going from device to device was the only way that this was going to be found.  One of the wires had broken off at the B connector making it intermittent.  The only reason I found it is that I pulled out each and every set of wires to map it and one wire stayed behind.   I've since...

Sorry - I had forgotten what it was - I installed it years ago.  I was going by the pic on the website.  I went down to look and it's a P624   I'm assuming that what you're drawing there are two home runs coming off branch 4 on the DBHR.  In that case you're mostly right given what I had...

OK - finally some time to go through this.   So I'm actually using a DBHR that has 5 runs on it.  There are numerous expanders, keypads, and RF interfaces along the various runs and it's quite the ordeal to sort through all of what's there.   Since most of the runs seem to be trouble free I'm...

I'm hoping someone can point me at a solution to this before I order a replacement that I may not need.   I have an M1G  system that sprawls over a fairly large area.  The last area has an M1KPAS that is used for access control.  There are 6 keypads in the system daisychained to a final length...

It seems sometimes you just have to suck it up, take it all apart, and put it back together bit by bit till it breaks.  It's just so disheartening having to do that.   Thanks again!

Thanks for the suggestions.   It's finally - after possibly months of things not-being-quite-right and frustration - acting as it *should*.   I moved the second run from branch 1 to branch 4 as you suggested and adjusted the termination appropriately Them I renumbered the keypads starting from...

I recently went through my Elk system with a fine tooth comb to verify termination etc.  I've got a problem that I've isolated to one branch but can't figure out where the problem is   I have an M1G with an M1DBHR board to allow me additional runs   I have 8 keypads, 3 expanders etc. but I'll...

Good thought.  I'll try that out.   In truth I'm just being finicky.  My keypads 'were' numbered 1 through 8 but are now 1,2,3,5,7,8,9,11.  It doesn't really make a whiff of difference - I could just leave it alone as it's working fine.   Thanks.   mark

So an update...   I disconnected the last two devices (an M1KPAS and an M1XRFEG) from the daisy chain that was causing trouble and terminated the chain at the preceding M1KPAS.  That change immediately brought the resistance across the data lines on that bus to 65ohms.  It's been 24hrs now and...

Thanks - from that post it seems like my error count is reasonable.  My last post was about an hour ago and the error count was 64.  It's now 94 - so 1 every 2 minutes.  Seems like a lot to me but within what Spanky was happy with (hard to type Spanky in a sentence lol)   My cable is cat5 but...

Thanks.   What do you mean by a 'bad connection'?  As in not firmly connected to one of the devices on the bus?  I just went down and checked to confirm there is, indeed, a terminating resistor at the end of the line on bus 4.  Perhaps what I should do is go down tomorrow and break the daisy...

  Thanks - that's a handy bit of information.  I put the resistances I measured in my reply to the previous post.  They're all in the +- 10 ohm range except the troublesome one which is 85 or so ohms.  That run is quite long - 350/400 ft.  I'm figuring that's why the resistance is a bit higher...