The Trend Networks R152003 is a Gigabit Ethernet Multi-stream Bi-directional Transmission Tester with a copper port, optical port and Y.1564 test capablity. The UNIPRO MGIG1 SOLO PRO Transmission Tester is designed for comprehensive turn-up testing, monitoring and troubleshooting of fixed line, mobile, microwave and wireless carrier Ethernet links. The R152003 Gigabit Ethernet Tester is suitable for use on any backhaul link at speeds of up to 1 Gb/s. This Transmission Tester allows enterprise users to monitor the actual bandwidth and performance compared to the agreed service levels from the service provider. The R152003 can also be used to stress test and monitor the performance of LAN backbone links.