... lines. Each line has 6 terminals,4 terminals on one side and one pair connects to DSLAM 2.2.1 Standard Fully ... atmosphere pressure, between any two unconnected terminals or between one termination and one fixed metal equipment, insulated resistance is not less ... pressure, between any two unconnected terminals or between one terminal and one metal fixed equipment, can endure 45∼60Hzsimilar to ...