The T9451 digital output module has 8 channels for a maximum of 8 field elements and can switch 1 A at 32 Vdc for each device.
The T9402 digital input module has 16 channels at 24 Vdc for each device.
The 9482 analogue output modules deliver 4 mA to 20 mA output current for field devices.
Woodward 9905-972 Linknet 6-channel Output Module, 4-20mA