So what exactly is this adapter for? Cisco, and plenty of other network equipment manufacturers, tend to use the RJ45 form factor instead of DE-9 for their RS232 console ports. RJ45 is the standard used in most computer networks while DE-9 is usually known as a “serial” or “COM” port. DE-9 ports used to come standard on most PCs, but nowadays they are more of a legacy connector and are rare on desktop computers and pretty much non-existent on laptops. USB adapters with one or more DE-9 ports are cheap and easily available, though. Equipment that has an RJ45 console port will usually come with an RJ45-to-DE-9 cable so that the equipment can be managed from a PC or laptop with a DE-9 port. The cable simply maps the active pins in the RJ45 port to the correct pins in the DE-9 plug (transmit to receive, receive to transmit, ground to ground and so on).
Moxa’s NPort product range allows you to transport RS232 signals over an IP network. You simply plug RS232-enabled equipment into to an NPort device, install the NPort software on a computer and communicate with the RS232-enabled equipment through virtual serial ports. Moxa refers to their NPort devices as serial-to-ethernet device servers, but other terms are also used, including serial-to-IP or just device servers. While the NPort range is Moxa proprietary, other vendors offer their own product ranges with similar functionality. Some time ago I got hold of a decommissioned NPort 5610, an 8-port serial device server with RJ45-type RS232 ports. I wanted to use this device to access the console ports of the equipment in my home lab, but I didn’t have any cables that properly mapped the RJ45 pinout on my network equipment to the RJ45 pinout of the NPort device. Download Free Watchtower Bound Volumes Pdf To Word on this page. Network Adapter Driver Windows 7 Ultimate 64 Bit Free Download.
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