DTSM-644R-V-B DTSM-644R-V-T/R DTSM-644S-V-T/R DTSM-644Y-V-T/R DTSM-648AN-TR DTSM-648N-V-B DTSM-648N-V-T/R DTSM-648R-S-V-T/R DTSM-648R-V-T/R DTSM-65K-S-Q-T/R