We are just getting started with our first labjack. Communications with the UE9 via USB and Ethernet without fiber optic cables are fine however when a pair of media convertors with a short length of fiber in between are used we cannot connect to the UE9.
Our laptops can communicate fine via the media convertors and fiber.
The media convertors are Startech part number MCM110ST2 , 10/100 MultiMode ST rated for a connection upto 2km.
We have tried the media convertors in auto detect mode, they set the connection as 10Mb 1/2 duplex
We have also tried in manual mode 10Mb 1/2 duplex (plus all other possibilities)
Pings fail 100% when fa
We have tried the UE9 setup with a fixed ethernet addres, or with DHCP both work without the media convertors/fiber in the circuit
but fail with the media convertors/fiber. (media convertors/fiber work fine with laptops on auto or 10Mb 1/2 duplex.
Wireshark shows the expected exchange of packets for DHCP (discover, request, offer ack) over wire connection, but we never
get an "DHCPack" when the UE9 is given the ip address over fibers.
We are using the latest firmware versions on the web site and did the firmware updates and initial setup via USB.
We used the LJ control with USB panel to set either the fixed or DHCP addressing.
We really need the fiber connection for electrical isolation.
Any suggestions of what we should try next.
I can send the wireshark saved files if necessary.