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Digikeijs DR4088





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20 replies to this topic

#1 Dave4468

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Posted 17 October 2016 - 19:49

Are these as good as they look? 

 

I'm starting to build a fully computer controlled and hopefully automated layout. I've got a Digitrax Zephyr to act as a throttle and control it with either JMRI or TrainController. I was planning to use Digitrax BDL168s as the feedback modules and to make use of Loconet. However I've stumbled upon Digikeijs and their DR4088LN-CS starter pack which is quite literally half the cost of two BDL168s and looks to do exactly the same thing. Does anyone have any experience of them as right now they seem too good to be true. Could I use them in place of the BDL168?





#2 WIMorrison

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Posted 04 October 2018 - 18:16

I recently had contact with the company, so they do exist ;) Elsewhere on RMweb people reported using their products successfully. However, the unit I'm waiting for (the RailCom based feedback detector) won't be available for at least a month or so, so can't tell you first hand. Below is the manual of the 4088LN unit you're interested in. Well, that should've been, but as the file is too big I can't upload it here :no: :sorry:

 

James www.dcctrainautomation.co.uk has DR5088RC in stock :) (and he is the UK agent for them)

 

I use the DR5088RC, DR5000, DR4018 and they all work well for me :)



#3 Alan Kettlewell

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Posted 05 October 2018 - 05:13

I'm using 3 of the Digikeijs boosters and some of their feedback modules (the opto version for reed sensors) which all help to run my automated layout.  They all work very well and excellent value for money.  I also have one of their DR4018 multiprotocol modules but I haven't set that up yet as I need to get my head round the instructions!

 

It seems good stuff though.  I recall writing about these in my layout thread (link below in my signature block). 

 

Cheers ... Alan  



#4 John52

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Posted 05 October 2018 - 12:50

James www.dcctrainautomation.co.uk has DR5088RC in stock :) (and he is the UK agent for them)

 

I use the DR5088RC, DR5000, DR4018 and they all work well for me :)

BUT!!

 

They are all cheaper from Ironplanet on Amazon !!!!!


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#5 WIMorrison

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Posted 05 October 2018 - 14:40

Agreed, but he is in the States and if you are in UK there is a good chance you will have to pay VAT and Tax making it a lot more expensive ;)



#6 njee20

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Posted 05 October 2018 - 15:26

Nope, they’re sold from the UK, and available with Prime.

Mine was faulty and almost immediately after installing it my ECoS cooked it’s main processor board, could be coincidence, but after 6 years of use it feels unlikely! Can’t decide whether to persist with the DR4088s now the ECoS is repaired.

Edited by njee20, 05 October 2018 - 15:28 .


#7 John52

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Posted 08 October 2018 - 08:31

Nope, they’re sold from the UK, and available with Prime.

Mine was faulty and almost immediately after installing it my ECoS cooked it’s main processor board, could be coincidence, but after 6 years of use it feels unlikely! Can’t decide whether to persist with the DR4088s now the ECoS is repaired.

Sorry....yes i meant that they are on Amazon UK, and I got mine next day using Prime.  Mind you, with the lack of documentation, its frustrating for a beginner like me.  (And what the hell does "CS" "GND" and "OPTO stand for?????)



#8 Vonzack

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Posted 08 October 2018 - 09:17

CS is the 2-rail

GND is the 3 rail

OPTO if I'm understanding it, has LEDs on to show occupancy

 

I have a couple of the DR4088LN-CS versions to install and have used BDL168s in the past, so if I get round to it in the next few days will post back here.



#9 pheaton

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Posted 10 October 2018 - 20:50

Good luck ive got an 4088ln and i cant for the life of me get it to work on s88 with the ECoS, ill be interested to know how you get on.

#10 fcwilt

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Posted 11 October 2018 - 01:11

Good luck ive got an 4088ln and i cant for the life of me get it to work on s88 with the ECoS, ill be interested to know how you get on.

 

Does the ECoS have the required LocoNet port? The 4088LN is designed to use a LocoNet connection.

 

The 4088CS or 4088GND or 4088OPTO is for the S88 bus.

 

Frederick



#11 fcwilt

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Posted 11 October 2018 - 01:20

CS is the 2-rail

GND is the 3 rail

OPTO if I'm understanding it, has LEDs on to show occupancy

 

I have a couple of the DR4088LN-CS versions to install and have used BDL168s in the past, so if I get round to it in the next few days will post back here.

 

The CS version is used for occupancy detection via current sensing (thus the CS) with the power to one rail flowing "into" the C connections and "out" to the rails via the 1-16 connections.

 

The GND version is used for contact closures between the C connections and the 1-16 connections.

 

The OPTO version is similar to the GND version but it is optically isolated.

 

Frederick


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#12 John52

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Posted 11 October 2018 - 14:15

The CS version is used for occupancy detection via current sensing (thus the CS) with the power to one rail flowing "into" the C connections and "out" to the rails via the 1-16 connections.

 

The GND version is used for contact closures between the C connections and the 1-16 connections.

 

The OPTO version is similar to the GND version but it is optically isolated.

 

Frederick

Thank you thank you thank you for explaining the CS version !!

For begineers, it's a great help.


Edited by John52, 11 October 2018 - 14:16 .


#13 Alan Kettlewell

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Posted 11 October 2018 - 15:10

The Opto version is for use with momentary contacts eg reed switches.

 

Cheers ... Alan


Edited by Alan Kettlewell, 11 October 2018 - 15:50 .


#14 pheaton

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Posted 11 October 2018 - 17:46

Does the ECoS have the required LocoNet port? The 4088LN is designed to use a LocoNet connection.

The 4088CS or 4088GND or 4088OPTO is for the S88 bus.

Frederick


The ln i have here has an s88 connection as well as loconet

#15 fcwilt

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Posted 11 October 2018 - 18:29

The ln i have here has an s88 connection as well as loconet

 

Correct. But notice that the S88 connection is marked "IN".

 

All of the 4088 devices that support a non-S88 primary connection, like the LN which uses LocoNet, reply on the S88 protocol for connecting the 2nd, 3rd, 4th, etc devices.

 

If you check the manual for the basic 4088 device which has no suffix you will see that it has an S88 connection marked "OUT" as well as the connection marked "IN".

 

If your command station needs an incoming S88 connection you need the basic 4088 device.

 

Frederick


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#16 pheaton

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Posted 11 October 2018 - 18:44

Frederick thank you very much for clearing that up that explains a lot, now ill have to invest in an adaptor to get the ECoS to accept loconet. 


Edited by pheaton, 11 October 2018 - 18:47 .


#17 fcwilt

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Posted 11 October 2018 - 21:33

Frederick thank you very much for clearing that up that explains a lot, now ill have to invest in an adaptor to get the ECoS to accept loconet. 

 

Glad to help.

 

Is there such an adapter for the ECoS?

 

Do you have other LocoNet devices you wish to connect? If not just get the plain 4088 device in the desired configuration (CS or GND).

 

Frederick



#18 pheaton

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Posted 12 October 2018 - 07:09

https://www.digitrai...r-for-ecos.aspx

That's it there, not cheap though so ill follow your advice and look at the basic 4088 module

#19 fcwilt

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Posted 12 October 2018 - 10:11

https://www.digitrai...r-for-ecos.aspx

That's it there, not cheap though so ill follow your advice and look at the basic 4088 module

Thank you for that link. 

 

Frederick



#20 John52

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Posted 12 October 2018 - 13:35

Correct. But notice that the S88 connection is marked "IN".

 

All of the 4088 devices that support a non-S88 primary connection, like the LN which uses LocoNet, reply on the S88 protocol for connecting the 2nd, 3rd, 4th, etc devices.

 

If you check the manual for the basic 4088 device which has no suffix you will see that it has an S88 connection marked "OUT" as well as the connection marked "IN".

 

If your command station needs an incoming S88 connection you need the basic 4088 device.

 

Frederick

 

Excellent info. Pity there's no "Dummies guide to" for this kind of thing...I know James Hudson @ dcc trainautomation has a wealth of info, but he's quite busy and difficult to get on the phone.

I've been scared to just "connect without knowing what was doing" for fear of wrecking DR5000, 4088LN 4088 and goodness knows what else!

 

John



#21 fcwilt

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Posted 12 October 2018 - 20:14

Excellent info. Pity there's no "Dummies guide to" for this kind of thing...I know James Hudson @ dcc trainautomation has a wealth of info, but he's quite busy and difficult to get on the phone.

I've been scared to just "connect without knowing what was doing" for fear of wrecking DR5000, 4088LN 4088 and goodness knows what else!

 

John

Feel free to contact me via email. I own all but the most recent Digikeijs devices.

 

Frederick


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