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Readhead input connection blanking plug for UCC2, UCC T3 and UCC T5
So that a controller can function without a readhead being connected, a blanking plug is required. This removes any signals coming from the readhead on that axis including and any errors signals.
15-way high-density ‘D' connector and pin confiruration
These are the pin numbers for a female 15-way high-density ‘D' connector

These are the pin configurations for both RGH22 and RGH24 read heads using the 15-way high-density ‘D' connector.
| Pin number | Function |
| 1 | External set up |
| 2 | 0 V |
| 3 | -Error |
| 4 | -Ref. mark |
| 5 | -B signal |
| 6 | -A signal |
| 7 | +5 V supply |
| 8 | +5 V supply sensing |
| 9 | 0 V sensing |
| 10 | Limit switch |
| 11 | +Error |
| 12 | +Ref. mark |
| 13 | +B signal |
| 14 | +A signal |
| 15 | Inner screen |
| Shell | Shell and screen |
Blanking connector for unused readhead connections
These are the pins that need to be connected together on the blanking plug to allow the controller to function without having a readhead plugged in. The pins need to be shorted to each other as the diagram shows.

Requirements
Hardware
- 15-way high-density ‘D' connector - male
Tooling
- Wire cutters / strippers
- Soldering iron and solder