ICT A6 Bill Validator — 12V DC 9-Pin Pulse Install
ICT A6 Bill Validator — 12V DC 9-Pin Pulse Install
Use this guide when your ICT A6 is the 12V DC / S.T.D. Pulse version and you need the 9-pin mating connector pinout for install or ArcadePay credit-pulse tap.
When to use 12V DC (this guide)
- Validator label / power requirement is 12V DC (manual: ~3 A).
- Harness path is WEL-M007 (validator 30-pin → 9-pin) into CU-961-1 (12V DC power harness).
When to use 110V AC instead
- Unit is the AC pulse model (ICT manual lists 117VAC; field label often says 110/115/120VAC).
- See the companion guide: ICT A6 110V AC pulse install.
⚠️ Safety: Power the machine and validator OFF before you connect or disconnect any harness. Do not hot-plug the 9-pin or 30-pin connectors.
ICT A6 bill validator? Pick 12V DC or 110V AC.
What harness parts you need
| Part | Role |
|---|---|
| WEL-M007 | Dual-in-line 30-pin on the validator side → 9-pin mating connector |
| CU-961-1 | 12V DC power harness that mates to that 9-pin |
Plug the 30-pin into the side of the A6. Mate the 9-pin to the CU-961-1 power harness. Pin-out details for WEL-M007 / CU-961-1 are also in the ICT A6 installation manual (cable / power harness pages).
9-pin mating connector (WEL-M007 → CU-961-1)
Mating face view with the lock tab on top. Pins read left→right, top→bottom as 1–2–3 / 4–5–6 / 7–8–9.
Labeled 9-pin mating face — 12V DC pulse
| Pin | Signal | Notes |
|---|---|---|
| 1 | INHIBIT + | Host inhibit (positive) |
| 2 | INHIBIT − | Host inhibit (return) |
| 3 | Reserved | Do not use |
| 4 | Reserved | Do not use |
| 5 | 12V DC HOT (Power) | Validator power + |
| 6 | Reserved | Do not use |
| 7 | CREDIT_RELAY (N.O.) | Dry contact — normally open |
| 8 | CREDIT_RELAY (Common) | Dry contact — common |
| 9 | GND (Power) | Validator power ground |
Manufacturer reference page (same pinout):
ICT A6 manual — S.T.D. Pulse for 12V DC (WEL-M007 / CU-961-1)
Validator-side 30-pin (dual-in-line) summary
Useful if you are probing the connector on the side of the validator (WEL-M007 plugs here). Keys are physical blanks — do not force a pin into a keyed cavity.
| Pin | Signal |
|---|---|
| 1 | CREDIT_RELAY (Common) |
| 2 | 12VDC (Power) |
| 3 | ENABLE − |
| 5 | INHIBIT + |
| 6 | KEY |
| 10 | GND (Power) |
| 16 | CREDIT_RELAY (N.O.) |
| 18 | ENABLE + |
| 19 | KEY |
| 20 | INHIBIT − |
| Other listed pins | Reserved |
Credit pulse — how it works with ArcadePay
The A6 credit output is a dry relay: N.O. (pin 7) and Common (pin 8). When a bill is accepted and stacked, the relay closes briefly → the host sees a pulse (same idea as a coin mech).
High-level path: validator credit relay → machine pulse line → ArcadePay tap
Practical install
- Keep 12V power on pins 5 / 9 via the ICT harness — do not borrow ArcadePay pulse wires for validator power.
- Land the credit pulse on the same pulse path the machine already uses for coins (parallel / tap).
- Bring that pulse into the ArcadePay Controller with Easy Connect or hardwire (Pulse 1 = credits). ArcadePay-side wiring is in the ArcadePay Controller installation overview — do not invent ICT harness colors.
- In the ArcadePay dashboard, confirm Pulse 1 timing matches your machine.
Inhibit / Enable (brief)
- Inhibit (+/−) lets the host disable bill acceptance when it should not take money.
- Enable (+/−) on the 30-pin side is the complementary enable pair on 12V units.
- Leave these on the machine / host logic unless you are intentionally locking out the validator. For a normal ArcadePay credit tap you usually only care about power + credit relay.
DIP / pulse mode reminder
Set the validator for pulse / S.T.D. Pulse per the manufacturer option-switch / DIP sheet for your exact A6 firmware revision.
- This guide does not invent a DIP table — switch maps vary by revision and appendix sheets.
- Use the ICT A6 installation guide appendix / switch settings insert that shipped with the unit (or the current PDF from ICT / your distributor).
- After DIP changes: power-cycle, confirm LEDs flash ready, then test one bill and one ArcadePay cashless play.
Troubleshooting (short list)
| Symptom | Check |
|---|---|
| No power / LEDs dark | Pins 5 (12V HOT) and 9 (GND); harness fully seated; supply can hold ~3 A |
| Accepts bill, no credit on machine | Pins 7 / 8 credit relay continuity during stack; pulse wire continuity to board / ArcadePay |
| ArcadePay online but no credit on cashless | Pulse 1 wiring / polarity of the tap; Pulse 1 duration/pause in dashboard; confirm a physical bill pulse also registers if cash reporting is enabled |
| Validator disabled (LEDs off / reject) | Inhibit held active; bill box missing/full; see LED flash codes in ICT manual |
| Intermittent | Power off → reseat 30-pin and 9-pin; look for bent pins or forced key cavities |
LED flash codes (jam, sensor, bill box, etc.) are in the ICT manual LED Status section — use that table rather than guessing.
Source manuals
- ICT A6 / V6 Installation Guide (Vol. 7.0): ict a6 manual.pdf
- Section 6-1 S.T.D. Pulse for 12V DC (WEL-M007 → CU-961-1)
- Distributor PDF mirror (when available): a6v6.pdf
Companion: ICT A6 110V AC pulse install