The utility model relates to a 2M thread guide general character testing arrangement including the box, has laid the power in the box, it has filter capacitor, master switch and power indicator to establish ties at the mains side, and four constitute the power return circuit. There is a test loop in that power return circuit side is parallelly connected, test loop is including parallelly connected loudspeaker, the sinle silk pilot lamp, the shielding layer pilot lamp, be connected with many grades of rotary switch behind loudspeaker, many grades of rotary switch include sinle silk test contact, shielding layer test contact, and opening contact, the sinle silk test connects with the L9 head end respectively behind the contact, sinle silk contact in the BNC head end connects links to each other, the shielding layer test connects with the L9 head end respectively behind the contact, shielding layer contact in the BNC head end connects links to each other, it has L9 tail end parallelly connected each other to connect to establish ties before sinle silk pilot lamp and shielding layer pilot lamp, the BNC tail end connects, wherein the sinle silk pilot lamp connects with the L9 tail end, sinle silk contact in the BNC tail end connects links to each other, the shielding layer pilot lamp connects with the L9 tail end, shielding layer contact in the BNC tail end connects links to each other.