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For Units that use an RS232 Serial connector the following is the the size of RS232 9 Pin connector is 30.80 W x 12.50 H MM
Note: Not all units will use a serial connection, please review the Pre-installation Specifications and Requirements for the device to ensure the proper communication is being used.

Note: For Conduit please consider 2" to allow room for the connector and cables to be pulled through any bends.