Well, the 4-port serial to Ethernet converter has been running for 22 hours, collecting data from two GPSDO's and it hasn't missed a beat.
Although I have had the Lucent unit running for several months, this is the first time I have hooked up to the RS-422 port and taken data from it. From the look of this graph, it seems to be performing quite well. https://dl.dropboxusercontent.com/u/19599147/Lucent%20Adev.png Joe Gray W5JG On Tue, Mar 15, 2016 at 7:05 PM, Joseph Gray <[email protected]> wrote: > On Thu, Feb 25, 2016 at 1:38 AM, Tom Van Baak <[email protected]> wrote: >> >> And, if you have a couple of 422 devices, consider the economics of a 4-port >> unit like: >> >> http://www.ebay.com/itm/301881123530 > > As promised, I am reporting on the USR-N540, 4-serial-port to Ethernet > box that Tom linked to. I had originally found it for less, but after > ordering, the seller emailed back to tell me he had no more at that > price. In any event, after about three weeks from China, my unit > arrived today. I haven't had any long term experience with this thing, > so hopefully it will continue to work. > > It was very well packed in a small box with hard foam. Included are > the converter box, wall wart (switcher), 2-pin screw terminal power > adapter, serial cable, Ethernet cable and four DE-9 to 4-pin screw > terminal adapters (for RS-422, RS-485). No documentation and no > software. The box is made from steel and seems substantial. The power > input is labeled "DC: 9-24V". > > I downloaded manuals and software from here: > http://www.usriot.com/p/4-serial-port-to-ethernet-converter/ > > One annoying thing is that the box is setup with a static IP, instead > of DHCP. The default IP of 192.168.0.7 is printed on the bottom, as > well as in the manual. The MAC address is not printed on the bottom. > The manual also lists the default login credentials. > > I initially only configured Port 1 in the web interface, to test with > my HP Z3801A (RS-232, 19200, 7, odd, 1). I then installed the Virtual > Serial Port software. This seems to be a licensed version of the > Eltima software http://www.eltima.com/products/vspdxp/. Or, perhaps > the Eltimat software is licensed from USR IOT? > > In the software, you can click on the "Smart VCOM" button and all four > ports will be assigned for you, using the first available port numbers > on your PC. I wanted a sequential range of 10-13, so I configured each > port individually, using the "Add COM" button. The interface box uses > TCP/IP ports of 23, 26, 29 and 32 by default, but these can be changed > in the web interface. Interestingly, the MAC address can also be > changed. > > The web interface is very well laid out and logical, as is the Virtual > Serial Port software. I have been connected to the Z3801A for almost > half an hour and things seem to be working just fine. I'll update if I > encounter any problems later. I will have to try the RS-422 with my > Lucent GPSDO. > > All in all, I am pleased with this converter box. At $20 per port, it > seems like a good deal for a new item. I know that others are using > surplus terminal servers that they bought for less. > > Approximate dimensions: 8.5" (including mounting ears) x 4.75" x 1.2" > > Joe Gray > W5JG _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
