Provide digital inputs and outputs.
Module RB8506, SIFU variant, is a digital input-output interface. It has four level-sensitive inputs, four negative-edge-sensitive inputs, four level outputs and four outputs that can be pulsed as a group.
There is also a provision to check if any of both the negative-edge-sensitive inputs and the level-sensitive inputs have changed state since it was last checked.
Inputs and outputs are available in TTL and in CMOS: TTL or CMOS can be selected with a switch on the front, two inputs or two outputs at the time. A LED indicates if TLL (red) or CMOS (green) is selected.
The SIFU module consists of a PIA parallel interface (see Pia) and a Sense Interrupt Flag Unit (SIFU) board.
The module's front-panel looks as follows.
+-------------------------------------------------+
| I/O CONTROLLER BOX |
| Input |
| 5 puls 4 1 level 0 |
| C A |
| (O) (X) (O) (O) (X) (O) |
| M |
| O o o o o o o o o |
| N 7 6 3 2 |
| O D B |
| C (O) (X) (O) (O) (X) (O) |
| H |
| R H G F E D C B A CMOS |
| O % % % % % % % % |
| M TTL |
| A |
| T (O) (X) (O) (O) (X) (O) |
| O G E |
| R 5 4 1 0 |
| o o o o o o o o |
| C 7 6 3 2 |
| A |
| B (O) (X) (O) (O) (X) (O) |
| L H F |
| E 7 puls 6 3 level 2 |
| Output |
| |
| RULBUS |
+-------------------------------------------------+
(O) BNC connector · (X) red-green LED · o mini plug · % switch
Classes | |
| class | RB8506_Sifu |
| input-output controller box (SIFU). More... | |