Schneider SR2B121JD Description Description Schneider 12VDC, 8 DI / 4 RO module, incl clock & 4 config analog in. Related products SCHNEIDER TSXDST1635 SCHNEIDER TSXDEY16D2 SCHNEIDER TSXDEY32D2K SCHNEIDER TSXDET1612 SCHNEIDER ATV31HU15N4 SCHNEIDER TSXASR402