The 1785-KA5P module is a panel-mounted communication module by Allen-Bradley. It allows devices on the DH+ network communicate with devices on the RS-485 Data Highway Plus (DH+) network. The DH+ is a baseband LAN which supports peer-to-peer communication with a maximum of 64 nodes. The node has a unique station address. It can help connect nodes on a common link with the industrial network. It is compatible with Allen-Bradley PLC devices. It is a DH+/ DH-485 communication adapter module. It is used for both uploading and downloading SLC 500 programs by using a DH+ device. It can also communicate messages between PLC and SLC processors. The adapter come comes with different ports and LED indicators. It is equipped with a Data Highway Plus connection with a 3-pin phoenix connector.

The 1785-KA5P module also has a 9-Pin D-shell port, an 8-Pin modular connector port, and a 6-Pin phoenix connector. An additional external power connector rated at 5 Volts DC is present. The adapter module supports different baud rates of 300, 600, 1200, 2400, 4800, 9600, and 19,200 baurd. The adapter module can reserve a rate for itself. The 1785-KA5P module supports remote programming and it can be rack mounted. It can be easily configured and expanded for additional application needs. The adapter supports a communicate rate of 57,600 bits per second. It works with a token passing process to share the link mastership among the nodes. This process is a reliable method of data transport. The 1785-KA5P module uses a DH/DH+ connector cable. It runs with 2 Amps of current at 5 Volts DC. The ambient temperature rating is 0 to 60 degrees Celsius for operation.