| Model Number | Input | Output |
| Analog to Frequency (High Speed Counter Input) |
| DRP-8505 | 4 mA to 20 mA | 1,000 to 5,000 Hz from floating
optocoupler |
| DRP-8506 | 0 to 5Vdc | 0 to 5,000 Hz from floating optocoupler |
| DRP-8507 | 0 to 10Vdc | 0 to 5,000 Hz from floating optocoupler |
| Frequency to Analog (High Speed Counter Input) |
| DRP-8508 | 1000 to 5000 Hz optocoupler diode
(7 mA into 3.3 KΩ, 20µS pulse width min) | 4 to 20 mA |
| DRP-8509 | 0 to 5000 Hz optocoupler diode
(7 mA into 3.3 KΩ, 20µS pulse width min) | 0.1 to 5 Vdc |
| DRP-8510 | 0 to 2000 Hz optocoupler diode
(7 mA into 3.3 KΩ, 20µS pulse width min) | 0.05 to 5 Vdc |
| DRP-8513 | 400 to 2000 Hz optocoupler diode
(7 mA into 3.3 KΩ, 20µS pulse width min) | 20 mA |
| DRP-8514 | 0 to 2000 Hz optocoupler diode
(7 mA into 3.3 KΩ, 20µS pulse width min) | 10 Vdc |
| Thermocouple to Frequency (High Speed Counter Input) |
| DRP-8511 | Type J T/C 0 to 500°C | 100 to 5100 Hz from floating optocoupler |
| DRP-8512 | Type K T/C 0 to 500° C | 100 to 5100 Hz from floating optocoupler |
| RTD to Frequency (High Speed Counter Input) |
| DRP-8540 | Platinum RTD -100 to +400°C
100 ohm α = 0.00385
2 or 3 Wire Connection | 100 to 5100 Hz from floating optocoupler |
| Strain Gage to Frequency (High Speed Counter Input) |
| DRP-8555 | 0 to 50 mV Differential Signal
from full bridge Strain Gage,
10 V excitation provided | 0 to 5 KHz from floating optocoupler |
| Analog to Frequency (Low Speed Pulse Input) |
| DRP-8605 | 4-20 mA | 100-500 Hz from floating optocoupler |
| DRP-8606 | 0-5 Vdc | |
| DRP-8607 | 0-10 Vdc | 0-500 Hz from floating optocoupler |
| Type J T/C to Frequency Converters(Low Speed Pulse Input) |
| DRP-8611 | Type J T/C 0 to 1000°C | 10-1100 Hz from floating optocoupler |
| DRP-8612 | Type K T/C 0 to 1250°C | 5 Hz to 630 Hz from floating optocoupler |
