Allen Bradley 1756-CN2RK ControlLogix Communication Module

FAQ

Q1: What is the 1756‑CN2RK?
It is a redundant ControlNet communication module for ControlLogix systems that provides high‑speed network connectivity.

Q2: What network protocol does it support?
It supports the ControlNet industrial network protocol at up to 5 Mb/s.

Q3: How many ControlNet ports does it have?
It has two BNC ports for redundant ControlNet connections.

Q4: How many communications connections can it serve?
It can handle up to 128 Logix communication connections.

Q5: What cable type is required for ControlNet?
It uses 1786‑RG6 quad‑shield coaxial cable for the ControlNet physical layer.

Q6: What are the backplane current requirements?
It draws about 1300 mA at 5.1 V DC and approximately 3 mA at 24 V DC from the chassis backplane.

Q7: What are the physical dimensions and weight?
Dimensions are approximately 18.3 × 5.2 × 23.4 cm and weight is about 0.29 kg.

Q8: Is the 1756‑CN2RK still supported?
Yes — it is an active communication module in the ControlLogix product family.

1756-CN2RK Allen Bradley

We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.

For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.

Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.