GDGK-501 n pese agbara si awọn fifọ Circuit tabi awọn iyipada HV miiran.
GDSL-BX-200 Eto Idanwo Abẹrẹ lọwọlọwọ lọwọlọwọ, ni lilo ni iṣawọn fun oluyipada lọwọlọwọ, oludabobo mọto, iyipada afẹfẹ, minisita yipada, fifọ Circuit, iboju aabo ati bẹbẹ lọ.