| 1 - 2 | No current supply | Continuity (2 Ω or less) |
| 3 - 4 | No current supply | No continuity |
| With current supply [terminal 1 (+), terminal 2 (-)] <LHD> | Continuity (2 Ω or less) |
| With current supply [terminal 2 (+), terminal 1 (-)] <RHD> | Continuity (2 Ω or less) |
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