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by **coyttl** on Thu Nov 22, 2012 4:43 pm

Y'know, for a Thanksgiving, I've been doing a lot of traffic stuff. :grin:

(Already had our meal, honey-ham. It was goooood! :drool:

)

I thought I'd ask those that are familiar with TS2 the following -

I read somewhere[1] that the TS2 converts all inputs to operation by BIUs. Specifically, the document says it gets rid of any "D" connector requirements.

So my question is - how does the BIU know input/control mapping? Pardon my bad terminology, I'll explain -
Say I have one of these, a rack-mount switch input, connected to a switch. I want the controller to see the "Phase 2 Omit" input on when I flip the switch.

In high level speak, how is the mapping between the rack-mounted detectors, be them loop, video, input isolators made to controller functions?

I have an ASC/2S, and I don't see any options to configure ("wire") those kinds of inputs to specific inputs on the controller.

Cheers all. :grin:

-Mike.

[1] - In this document, on page 6, under "Terminals and Facilities". It lists almost all of the controller's inputs listed there.

by **EPAC-EPIC-MARC** on Fri Nov 23, 2012 11:42 am

The BIU will configure itself to wherever they are located in the cabinet...either in the detector rack or in the terminal facility.

To wire up any inputs you do that as you would like TS-1...at the backpanel. You can configure inputs at the controller. The BIU acts as a translator between the SDLC bus and the cabinet.

Did that answer your question? :scratch:

by **TacomaJoe** on Fri Nov 23, 2012 12:39 pm

Imagine it like this, the connectors of TS1 are the BIUs of TS2

Phase 2 OMIT is connector "B" pin "S" on the TS1 and it is BIU #3 I/O #18. Each BIU number has a defined set of inputs and outputs with #1 thru #4 covering all the old backpanel pins along with the "D" connector I/O. BIU #9 to #12 handle detector inputs.

The rack wiring tells the BIU what number it is. In the above example if the BIU number changed to #2 your input from the EDI card would call up preempt#1.

by **coyttl** on Fri Nov 23, 2012 12:48 pm

TacomaJoe wrote:Imagine it like this, the connectors of TS1 are the BIUs of TS2

Phase 2 OMIT is connector "B" pin "S" on the TS1 and it is BIU #3 I/O #18. Each BIU number has a defined set of inputs and outputs with #1 thru #4 covering all the old backpanel pins along with the "D" connector I/O. BIU #9 to #12 handle detector inputs.

The rack wiring tells the BIU what number it is. In the above example if the BIU number changed to #2 your input from the EDI card would call up preempt#1.

I appreciate Nick's answer, but this actually answer my question, as I wasn't aware that the different BIU #s had different mapping. (For example, I was assuming that you could have BIU #1 and BIU #2 handle detectors 1-8, so you could have multiple loops on the same phase.)

So this means, if I read it right - *ONE* rack couldn't handle detectors #1 and Preempt 1 or Phase 2 Omit, for example.

Is there a document showing the different inputs the BIU numbers can handle? (i.e. #1 does Detectors 1-16, etc..)

Thanks!
-Mike.

by **coyttl** on Fri Nov 23, 2012 12:59 pm

Quick to add - I'm assuming this it also true of the *location* a card is mounted in the rack. (i.e. Position 3 vs position 6)?

by **EPAC-EPIC-MARC** on Fri Nov 23, 2012 1:44 pm

Sorry I misinterpreted your question. I thought you wanted to know how to wire up the input at the backpanel. I have not remapped the BIUs, so I'm glad Joe stepped in to help you there. I learned a little myself. I have several schematics and documents that came with the backpanel that may help. I'll dig them out and see if there is any info you can use.

by **coyttl** on Fri Nov 23, 2012 1:47 pm

EPAC-EPIC-MARC wrote:Sorry I misinterpreted your question. I thought you wanted to know how to wire up the input at the backpanel. I have not remapped the BIUs, so I'm glad Joe stepped in to help you there. I learned a little myself. I have several schematics and documents that came with the backpanel that may help. I'll dig them out and see if there is any info you can use.

No problem! :) I figured there was still wiring needed for the loops and isolator inputs and such for the rack-mounted cards to 'read'.

Trying to find information on the TS2 standard has proven difficult on Google.. I'm sure I'm not using the right keywords, somehow.

by **TacomaJoe** on Fri Nov 23, 2012 3:23 pm

Is there a document showing the different inputs the BIU numbers can handle? (i.e. #1 does Detectors 1-16, etc..)

I pulled my information out of the Peek LMD 9200 manual. Don't have a TS2 spec around the shop (we're in the TS1 world).

by **EPAC-EPIC-MARC** on Fri Nov 23, 2012 3:52 pm

Here is the BIU schematics from my cabinet. I think I have some detector rack info too...even though I don't have a true TS-2 detector rack in my cabinet. Gotta check further

FWIW: This will give you an idea of the pin assignment on the BIUs in the load bay.

http://i50.tinypic.com/28rmdmf.jpg
(Link to large image)

As a side note this schematic is from the pre-Siemens days. Dated 1995 for the Automatic Signal/Eagle Signal company. Kinda neat! :cool:

by **EPAC-EPIC-MARC** on Fri Nov 23, 2012 7:58 pm

Well I did some more digging and found the full TS-2 NEMA specs in my cabinet buried under all other booklets and manuals. It is over 200 pages long so I am not scanning all of it, but I can see if I can pull any information you need let me know if your still searching for detector interface info.

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