ACC-EXP-NR4 - RS485 MODBUS Expander

Part Number

P51280-01

Product Description

Wildeye expander module with 1 input cable:
5-pin, M12 type connector (N), with 1x RS485 Modbus input (R4).

Pinout

Note: "A" and "B" are often swapped in product specification, so verify its meaning for each case. It may be necessary to swap wiring and test.

Tech specs

Spec	Rating
Power draw	TBC
RS485 A/B bus pin absolute maximum voltage	−8 V to +13 V, referenced to GND
RS485 A/B guaranteed operating common-mode range	−7 V to +12 V
ESD protection on RS485 bus pins	±15 kV Human Body Model
IEC contact-discharge ESD protection	±6 kV IEC 61000-4-2 contact discharge
Driver short-circuit protection	Yes — driver outputs include short-circuit / foldback current limiting
Bus contention protection	Yes — driver current limiting helps protect against bus contention
Thermal protection	Yes — thermal shutdown places driver outputs into high impedance during excessive die temperature
Fail-safe receiver behaviour	Receiver output defaults to a known logic-high state when the bus is open, shorted, or idle with all drivers disabled
Hot-swap / power-up behaviour	Yes — interface control inputs are designed to avoid false bus transitions during power-up or hot insertion

Cable & Connector

Cable type: PUR

Cable length: 0.5m total length (incl expander box)

Connector types: M12 5-pin

Compatible Loggers

Wildeye data-loggers and expanders with the following connector types are compatible with this sensor:

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