B&R 8AC125.61-2
BiSS encoder interface (Mode C) for installation in ACOPOS servo drives 6.25 Mbit/s, 12 V encoder supply Encoder monitoring ACOPOS plug-in module, BiSS encoder interface 12 V, baud rate 6.25 Mbit/s
Lifecycle & replacement
No manufacturer-published lifecycle data for B&R part numbers is indexed here yet. Ask IAC to check availability and an upgrade path.
Servo amplifiers, motors, encoders and cables are matched sets. If this part is no longer available in its original form, the manufacturer's newer generation usually will not pair with the rest of the axis, so an upgrade normally covers the drive, motor and cables together. Send us the nameplate details and we will confirm availability of an exact spare or scope a compatible upgrade.
IAC stocks legacy spares and exchange units and quotes upgrade paths. Send us the nameplate details and we will confirm a compatible replacement.
Technical specifications
General information
| Certifications / CE | Yes |
| Certifications / UKCA | Yes |
| Certifications / CRA (Cyber Resilience Act) | Non-compliant |
| Certifications / UL | cULus E225616 Power conversion equipment |
| Certifications / KC | Yes |
| Module type | ACOPOS plug-in module |
| B&R ID code | 0xBD5A |
| Slot | Slots 2, 3 and 4 |
| Max. power consumption | 5.8 W |
Encoder connection
| Electrical isolation / Encoder - ACOPOS | No |
| Module-side connection | 9-pin female DSUB |
| Status indicators | UP/DN LEDs |
| Encoder monitoring | Yes |
| Max. encoder cable length | 100 m Depends on the cross section of the power supply wires in the encoder cable |
Encoder power supply
| Protective measures / Overload-proof | Yes |
| Protective measures / Short-circuit proof | Yes |
| Output voltage | Typ. 12 V |
| Load capacity | 350 mA |
Synchronous serial interface
| Signal transmission | RS485 |
| Baud rate | 6.25 Mbit/s |
Ambient conditions
| Temperature / Operation / Nominal | 5 to 40°C |
| Temperature / Operation / Maximum | 55°C |
| Temperature / Storage | -25 to 55°C |
| Temperature / Transport | -25 to 70°C |
| Relative humidity / Operation | 5 to 85% |
| Relative humidity / Storage | 5 to 95% |
| Relative humidity / Transport | Max. 95% at 40°C |
Documentation & CAD
Files hosted by B&R Industrial Automation; links open the official download page.
Datasheets
Manuals
ECAD / EPLAN
Get a quote for a replacement
Industrial Automation Co. stocks, sources, and repairs B&R parts — new, refurbished, or exchange units with warranty.
Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.