Opengear DCIM and RIM appliances are available with a range of power supplies and serial ports - as shown on the table below.
Some appliances offer selectable RS232, RS422 or RS485. Some have DB9 connectors and others RJ45 serial ports connectors (and there can be three varieties of RJ pin-out available):
Similarly some families (CM/IM) have internal power supplies, others (ACM/SD) are external. And there are DC supply and dual power options.
Click here for details of the serial cable adapter to use with your Opengear device.