Digital Palette camera back interface pinout
Connectors:
| Picture | Connector type | Location |
|---|---|---|
 | 8 PIN DIN (DIN45326) FEMALE | at the film recorder |
 | 8 PIN DIN (DIN45326) MALE | at the camera back cable |
| Pin number (DIN) | Name | Wire colour | Function |
|---|---|---|---|
| 1 | CBVCC | Brown | 5V DC supply |
| 2 | $\overline{\rm CBADV}$ | Red | Camera Back Advance Low (active): open the shutter. L→H: advance the film. Driver: SN75477 (HR-6000), 2SC3072 (CI-5000). Abs Max 200mA (CI) or 300mA (HR). Requires a ~20k pull-up to +5V (If it isn't pulled up, the CFR will report “out of film”). |
| 3 | GND | Orange | Ground |
| 4 | CBDATA1 ($\overline{\rm ENDOFFLM}$) | Yellow | Camera Back Data 1 For 35mm, “End of Film”: High indicates OK, Low indicates no film, camera back open or camera error |
| 5 | CBDATA2 | Green | Camera Back Data 2 |
| 6 | CBDATA3 | Blue | Camera Back Data 3 Polaroid schematic calls this “DRKSLIDE”. |
| 7 | CBDATA4 | Violet (or black) | Camera Back Data 4 |
| 8 | N/C | White |
| CBDATA Truth table | ||||
|---|---|---|---|---|
| CBDATA1 | CBDATA2 | CBDATA3 | CBDATA4 | Function |
| X | 1 | 1 | X | Pack Film (or no camera back) Packfilm back does not have a cable, so all pins float. |
| X | 1 | 0 | X | 4×5 4×5 seems to only indicate its ID |
| FILM | 0 | 1 | X | 35mm CBDATA1 indicates out-of-film (0=OK, 1=no film) CBDATA4 is don't-care; Polaroid R6000 backs leave it floating |
| X | 0 | 0 | X | Integral Seems to only indicate its ID |
| 1: Floating 0: Short to ground X: Don't care |
||||