TTC/Acterna FST-2510 TTC 2000 10 GIG Field Test Services Module. At 15 lbs., the FST-2510A is portable for field applications and also can serve as a central office tester. The instrument supports bit error rate testing of 1.5 Mbit/s to 10 Gbit/s line interfaces for SONET and SDH networks, and can analyze multiplexed payloads as well as concatenated signals. *Pwr sup for these fit, but are a bit loose fitting.* Unit # 1 - Boots up, touchsecreen works great. Comes with carrying case, manual, generic pwr sup, stylus pen and misc cables. Unit # 2 - Boots up, touchscreen works great. Comes with carrying case, Manual, generic pwr sup, misc cables. Unit # 3 - Unit only. Boots up and comes with generic pwr sup.