Two distributors with the same code and contact count can still be wired differently inside. One may mirror the input pin-for-pin to all three outputs; another may cross-assign contacts, tie the shield to the shell on one port only, or bring a terminator onto specific positions. That is why the drawing, not the product photo, is the document your panel build should be released against. Ask for the input and output port gender, the per-pin mapping between ports, and the path of the shield and drain contact. Then ask where any 120 Ω termination sits: a CAN segment still needs a terminator at each physical end, even when a three-way distributor provides the drop. If termination is built into the distributor, place that distributor at an end of the trunk rather than mid-run. A conveyor retrofit shows how this plays out. A DeviceNet trunk already runs along the frame with terminators at both ends, and three photo-eye drops are needed in the middle. The integration engineer needs a 5-pin A-coded body with one input and three outputs, a drawing showing CAN_H and CAN_L passing straight through to every output, a shield path that continues to the next drop, and a clear statement of whether a 120 Ω resistor sits inside the branch. The electrical rating belongs in the same review: the stated 250 V AC/DC and 4 A rating covers sensor and low-voltage auxiliary circuits. Send the PLC port list and the existing cable pinout with the drawing request, then approve the returned drawing against the ports actually fitted to the machine.