Telco Electronics T1 - Indoor/Outdoor 4G LTE-A Pole Mountable Modem/Router
Patton IPLink™ Model 2603 High Speed T1/E1 Router
ruggednetworks.net, industrial router dx900 four serial and 4 ethernet with wan port t1 or dds by garrettcom model dx900-03-h and dx900-01-h. Industrial routers by garrettcom.