View source for 185 (NORD-1 card)

'''185 Line driver/receiver'''  is a card that is used in several places in the [[NORD-1]] I/O crates. It is a differential line driver / receiver. 
[[Image:NORD-1 card 185-c.jpg |300px | thumb | Component side.]]
[[Image:NORD-1 card 185-s.jpg |300px | thumb | Solder side.]]

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==Introduction==
This card is used as a line driver or receiver for differential signals to external devices, like SMD data or control.
The card is made in the [[standard NORD-1 card format]].

It is documented in drawing '''2A85'''.<ref>HARDWARE MANUAL NORD 1</ref>

==Switches and indicators==
There are no switches or indicators on this board.

==BOM==
This list contains the logic circuits used, passive components are not listed.
* 2 x [http://www.alldatasheet.com/datasheet-pdf/pdf/539961/TI1/SN7437N3.html 7437N] Quad 2-input NAND buffers
* 9 x [http://www.alldatasheet.com/datasheet-pdf/pdf/168220/TI/SN75107A.html 75107] (75108) Dual line receivers
* 9 x [http://www.alldatasheet.com/datasheet-pdf/pdf/28163/TI/SN75109A.html 75109] (75110) Dual line drivers

==Reference==
<references/>
* Hardware in [[NORD-1 Serial 47]]

[[Category:NORD-1 hardware]]