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Hello All,

Extremely optimistic appeal for information regarding the LAT20 interface card as is found on UK Spec T1000 Military machines.

From checking specifications of communications standards used across Europe of the period, it would appear that the +/-6V signalling standard is best described as V.10, or EIA RS423

I can tell from some minor reverse engineering that this interface card is certainly not line current in the normal way

There are 6 connections to the field cable if I am ti assume RS423 this will mean +TXD -TXD +RXD -RXD plus two other not identified.

Sadly there is no information available in the UK regarding these machines, nor anything regarding the interfaces - this makes life very difficult to interface these machines to anything useful.

Any help gratefully received.

Can you specify the PCB board type (alphanumeric code LAT7/A100 for example), I have some T1000 doc's here but don't want to go through all of them.

S22717-B224-A100-GS2 XA/R5

Hi Sean,

sorry but nothing even near this kind of description, there are some pages about LAT7/A100 as in the zip file but nothing specific as you mentioned.