[[Open Beam Interface]] - [[OBI DB9 Connectors]] - [[FEI]]
## Cables and connectors
These are the connectors on the cables, *not* the connectors on the boards
![[Strata DB 2024-04-15 15.36.13.jpg]]
%%[[Strata DB 2024-04-15 15.36.13.excalidraw|🖋 Edit in Excalidraw]]%%
| ID | Board 1 | Conn 1 | Board 2 | Conn 2 | Cable Type | Length | Prefab |
| ------------ | -------------------- | ---------------------- | -------------------- | ----------- | ---------- | ------ | ------ |
| A | OBI diff scan | M8 Pin | DB9 splitter | DB9 Socket | Diff | Min | N |
| B | DB9 splitter | DB9 Pin | OPMP backplane | DB9 Socket | Diff | 5 | N |
| C | DB9 splitter | DB9 Pin | Diff scan selector | DB9 Socket | Diff | 5 | N |
| D | Diff scan selector | DB9 Pin | EOCU | DB9 Socket | Diff | Min | N |
| E | Hi-Lo | DB9 Pin | Diff signal selector | DB9 Socket | Blank | NA | |
| F | Diff signal selector | DB9 Pin | EOCU blanking | DB9 Socket | Blank | Min | N |
| G | ETD | BNC Pin | OBI video in | BNC pin | | 5 (6?) | Y |
| H | Digital IO | M8 Pin | Beam offset switch | M8x3 Socket | | 5 | Y |
| I | Digital IO | M8 Pin | Diff scan selector | M8x3 Socket | | 5 | Y |
| J | Digital IO | M8 Pin | Hi Lo | M8x3 Socket | | 5 | Y |
| K | Digital IO | M8 Pin | Diff signal selector | M8x3 Socket | | 5 | Y |
| L | Digital IO | M8 Pin | Diff signal selector | M8x3 Socket | | | Y |
| M | CCU | 1x10 MateNLok? Socket? | OBI power | M8x4 Socket | | 5 | N |
| Ribbon Cable | | | | | | | N |
| USB C Cable | | | | | | | |
### Digital IO Pinout
| Pin | Function | Board | Level |
| --- | -------------------- | ---------------------------- | --------------------------------- |
| 0 | FIB scan ctrl enable | DSC selector | High = external ctrl enabled |
| 1 | FIB scan ctrl enable | DSC selector | High = external ctrl enabled |
| 2 | FIB blank enable | Diff signal selector | High = external blank ctrl enable |
| 3 | FIB blank enable | Diff signal selector | High = external blank ctrl enable |
| 4 | FIB blank | Diff signal selector - Pin 1 | Low = FIB blank |
| 5 | FIB blank | Diff signal selector - Pin 3 | High = FIB blank |
### High-Low Jumper Settings
| Jumper Pin | To M8 Pin | Jumper Position | Blank Condition |
| ---------- | --------- | --------------- | --------------- |
| 1 | 3 | R | High |
| 6 | 1 | L | Low |
| 2 | - | - | - |
| 7 | - | - | - |
| 3 | 1 | L | Low |
| 8 | 3 | R | High |
| 4 | - | - | - |
| 9 | - | - | - |
| 5 | - | - | GND |
| | | | |
### Cable Fab
| ID | Board 1 | Conn 1 | Board 2 | Conn 2 | Pinout | Length |
| --- | -------------------- | ------- | ------------------ | ---------- | ------ | ------ |
| A | OBI diff scan | M8 Pin | DB9 splitter | DB9 Socket | Diff | Min |
| B | DB9 splitter | DB9 Pin | OPMP backplane | DB9 Socket | Diff | 5 |
| C | DB9 splitter | DB9 Pin | Diff scan selector | DB9 Socket | Diff | 5 |
| D | Diff scan selector | DB9 Pin | EOCU | DB9 Socket | Diff | Min |
| F | Diff signal selector | DB9 Pin | EOCU blanking | DB9 Socket | Blank | Min |
[[Strata DB Interface Kit V1 Assembly Notes]]
## PCBs
| Board |
| ------------------------------------------- |
| [[Open Beam Interface]] |
| [[OBI Interconnect PCB]] |
| [[OBI Digital IO Breakout]] |
| [[OBI Beam Offset Switch]] |
| [[OBI 4x Differential Signal Selector PCB]] |
| [[OBI DSC Scan Selector]] |
| [[OBI DB9 Configurable High Low PCB]] |
| [[OBI DSC DB9 Splitter PCB]] |