GE UR9KH

Description

Frequently Asked Questions about UR-9KH
What are some of the updated features of the CPU UR-9KH designed for GE Multilin universal relays of the UR series?
The UR-9KH is a member of the Universal Relay CPU module type ‘9K’. The 9k CPU modules and the 9J CPU modules have had a hardware revision in 2015 to increase the flexibility in communication for these types of CPU modules. A 10/100Base-T Ethernet port has been added to the 9J and 9K CPU modules with a RJ-45 connection capability. This change allows the UR to connect to an Ethernet LAN cable. The second communication port on the model still remains as a RS485. On the product listing, the first communication port is now designated as the 100Base-RX plus 10/100Base-T. When viewing the unit from the rear, the revision can be found as an additional aspect of the CPU on the bottom right side of the unit. This type of port is already found on the CPU 9G and 9H models, which are not produced anymore. The practicality of this additional port (copper) stimulated the addition of this port to the 9J and 9K CPU modules such as the UR-9KH. While this difference in revisions affords the CPU modules with different features in the communication capability, both versions are still compatible with firmware versions ranging from 4.8 to 6.0x.