ABB IEMMU21 Module Mounting Unit

ABB IEMMU21 Module Mounting Unit

The IEMMU21 is a module mounting units used to house standard INFI 90 OPEN system modules and the BRC-100 Harmony Bridge Controller module of the Symphony system in system cabinets.

The module mounting unit consists of a sheet metal card chassis and a printed circuit board backplane assembly. The open top and bottom structure allow air to flow over the modules. Mounting flanges are provided for mounting the mounting unit in a standard Elsag Bailey 483-millimeter (19-inch) cabinet. Modules can be installed and removed quickly and easily. The module is held in position by card guides, the connectors on the backplane, and the module's front panel, captive fastening latches.

The backplane is a multilayer printed circuit board assembly containing electronic components, dipshunt sockets, connectors, and jumpers. In most cases, the mounting unit provides direct I/O cable coupling to the modules. The exception to this is when a BRC-100 Harmony Bridge Controller module is installed in the MMU. 

The IEMMU21 module mounting unit is used when the cabinet configuration requires a rear mount chassis with no primary power distribution. 

Features

The backplane in these mounting units has several features:

• I/O expander bus interconnect cables based on 2.54-millimeter (0.1-inch) center ribbon cable technology for enhanced robustness. Cables come in choice of two lengths: 38 millimeter (1.5 inches) and 171 millimeter (6.75 inches).

• Ability to segment Controlway or module bus into three segments on the backplane, which provides for increased density and lower costs.

• Available with or without primary power distribution. Module mounting unit with primary power distribution is only needed for AC and DC Modular Power Systems configured for primary power distribution.

Technical Specifications

100% brand new and original,All the goods will be tested before shipment.

For the in stock items, we will send the order out within 5-7 days after receive the payment.

Global supplier of quality automation and control components.

Topteng offers a 12-month warranty from the date of delivery.

In the event of non-conforming product ( if damaged or incorrect product is received ),

Any nonconformity must be reported within 7 days of receipt of goods.

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