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Product Code: MTHO-492
MPN #: PCI-7251
| Card Type | PCI Digital I/O Extension Card |
| Relay Outputs | 8 channels |
| Relay Configuration | Channels 0–3: SPDT (Form C)Channels 4–7: SPST (Form A) |
| Relay Contact Rating | AC: 120 V @ 0.5 ADC: 24 V @ 1 A |
| Relay Breakdown Voltage | 1000 VRMS |
| Relay Contact Resistance | 100 mΩ typical |
| Relay ON/OFF Time | Operate: ~8 msRelease: ~8 ms |
| Digital Inputs | 8 isolated digital input channels |
| Input Voltage Range | 0–24 V (non‑polarity) |
| Digital Logic Levels | Input High: 5–24 VInput Low: 0–1.5 V |
| Input Resistance | ~2.2 kΩ @ 0.33 W |
| Isolation Voltage | 5000 VRMS |
| Isolation | Optically isolated digital inputs |
| I/O Connector | 37‑pin D‑sub female |
| LED Indicators | On‑board LEDs for relay status |
| Data Transfer | Programmed I/O |
| Bus Interface | PCI (controlled by PCI‑7250 host) |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | –20°C to 80°C |
| Relative Humidity | 5% to 95%, non‑condensing |
| Power Consumption | +5 V @ ~125 mA typical |
| Usage | Must be used with PCI‑7250 as extension card |
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We are retiring PICOPC Products MNHO-073, MNHO-048 and MNHO-043 and they have reached EOL (End Of Life) as we are introducing new products with better technology. We would recommend you to look into MNHO-095. For Untangle, pfSense, OPNsense, Windows 11, Proxmox VE etc. we recommend MNHO-095 whereas for Sophos, Kerio Control and Endian, we would recommend MNHO-069. (A complete list of supported OS can be found in each product's listing)