GE Multilin UR9HH UR 9HH CPU Module

 

Specifications

 

• Model: GE Multilin UR9HH
• Inputs and Outputs: Configurable digital and analog I/O channels for flexibility in installation
• Operating Voltage Range: 24V to 48V DC
• Operating Temperature Range: -40°C to 70°C (-40°F to 158°F)
• Display Type: LCD for clear system status updates
• Mounting Type: DIN rail or panel mount

General Electric Multilin's UR-9HH is a CPU module designed for the Universal Relays series, furnishing the relay with computing power by means of logic frameworks, powerful algorithms, and system appropriate latches and gates. The CPU module also works closely with other modules in the relay to assist in organizing their functions and the data they collect. GE Multilin's UR-9HH also provides the unit with communications functions, such as governing the RS485 port located at the back of the relay.

GE Multilin has produced a wide variety of CPU modules which supply the given Universal Relay unit with different capabilities. For example, some units provide the relay with Ethernet, some units do not provide Ethernet at all, and some units provide Ethernet with additional capabilities, such as Parallel Redundancy Protocol (PRP) and IEEE 1588 protocol.

Most Multilin modules come in a horizontal or vertical form, with the horizontal form taking up more space than the vertical one. This makes the vertical unit ideal for prospective buyers working with a limited amount of space in their power system. Users should ensure they are buying modules appropriate for their relay's orientation, denoted in the model number by an "H" or a "V".

What are the unique features of a UR-9HH functioning as a CPU for a Multilin universal relay in the UR series?

The UR-9HH CPU module is a member of the '9H' CPU type, which are currently obsolete and only available as a surplus option. The UR-9HH has an ideal communication aspect that led the major hardware revision of the '9J' and '9K' CPU modules in 2015. This aspect is the additional copper 10/100Base-TX Ethernet port found on the lower right aspect of the unit (rear view). Users have used this port for service purposes by connecting to it in the case of configuration, maintenance, or commissioning situations. Thus, the same copper 10/100Base-TX Ethernet port is now found on the '9J' and '9K' CPU modules used for the Multilin UR series universal relays.

Where are the Ethernet ports found on the Multilin UR-9HH CPU module?

When viewing the Multilin UR-9HH module from the facing (portion labeled with CPU and model designation), the CPU appears as an enclosed casing with a black matte finish. From the rear view however, the three tiers of boards can be viewed through the windowed back aspect of the CPU. The two Ethernet ports are found centrally in the front of the unit and at the bottom right aspect of the rear view. The Ethernet port located at the rear of the unit is the copper 10/100Base-TX Ethernet port.

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