GRV-IDCIFQ-12 DC digital input, 12 channels, 2.5-30 V, channel-to-channel isolation, high speed, quadrature
GRV-OVMAILP-8 Analog output, 8 channels, voltage or current, channel-to-channel isolation, field or chassis-powered loop
GRV-IACIS-12 AC discrete input, 12 channels, 85-140 VAC, channel-to-channel isolation, on/off state only
GRV-IACIHVS-12 AC discrete input, 12 channels, 180-280 VAC, channel-to-channel isolation, on/off state only