DTSM31N-F DTSM31N-F-R DTSM-31N-V-B DTSM-31N-V-T/R DTSM-31R-V-T/R DTSM-31S-V-B DTSM-31S-V-T/R DTSM-31Y-V-T/R DTSM-32K-V-T/R DTSM32N-F