| Specifications |
| Digital input/output |
| Digital type | CMOS (Schmitt trigger) input / open drain output |
| Number of I/O | One port of 4 bits |
| Configuration | Bit configurable for input or output |
| Power on conditions | Power on reset is input mode |
| Pull-up configuration | Each bit is pulled up to 5 V with a 100 k? resistor |
| Input frequency range | DC – 10 kHz. |
| Input high voltage threshold | 1.9 V min, 3.6 V max |
| Input low voltage threshold | 2.3 V max, 1.0 V min |
| Schmitt trigger hysteresis | 0.6 V min, 1.7 V max |
| Input high voltage limit | 15 V absolute max |
| Input low voltage limit | –0.5 V absolute min, 0 V recommended min |
| Output off state leakage current | 10 µA max |
| Output sink current capability | 100 mA max (continuous) per output pin |
| Output transistor on-resistance (drain to source) | 1.6 ? |
| Network |
| Ethernet type | 100 Base-TX, 10 Base-T |
| Communication rates | 10/100 Mbps, auto-negotiated |
| Connector | RJ-45, 8 position |
| Cable length | 100 meters (328 feet) max |
| Network interface |
| Network IP configuration | DHCP, link-local, static |
| Network name | webdaq-xxxxxx (default); xxxxxx are the lower 6 digits of the device MAC address; editable with the web interface. |
| Network name publication | By mDNS |
| Factory default IP address | 192.168.0.101 |
| Factory default subnet mask | 255.255.255.0 |
| Factory default Gateway | 192.168.0.1 |
| Factory default DHCP setting | DHCP + link-local enabled |
| Factory default password | admin, case sensitive; editable with the web interface |
| Factory default user name | admin, case sensitive; cannot be changed. |
| USB ports |
| Number of USB ports | Two, for connection to a mass storage device or approved |
| USB device type | USB 2.0 (high-speed) |
| Device compatibility | USB 1.1, USB 2.0, USB 3.0 |
| SD memory card slot |
| Memory card type | SD, SDHC, SDXC, MMC, TransFlash |
| File systems supported | FAT16, FAT32, exFAT, ext2/3/4, NTFS |
| Push buttons |
| Power (POWER) | Turns the device on or off, or forces the device to power off |
| Function (FUNC) | Unmounts external media, or starts/stops an acquisition |
| Reset (CONFIG RESET) | Restores network and alarm settings to factory default values |
| Power |
| Input voltage | Center positive. 6 VDC to 16 VDC |
| Input wattage | 4 W typ, 10 W max |
| External AC adapter | 9 VDC, 1.2 amps, 110 VAC to 240 VAC input range |
| Battery | One 3 V button cell lithium battery (BR1225 or CR1225); replaceable |
| Mechanical |
| Dimensions (L × W × H) | 158.8 × 146.1 × 38.1 mm (6.25 × 5.75 × 1.50 in.) |
| With spring terminal | 177.0 × 146.1 × 38.1 mm (6.97 × 5.75 × 1.50 in.) |
| Weight | 635 g (1.45 lb) |
| Environmental |
| Operating temperature range | 0 °C to 50 °C max |
| Storage temperature range | –40 °C to 85 °C |
| Ingress protection | IP 30 |
| Humidity | 10- 90% RH, noncondensing (Operating), 5-95% RH (Storage) |
| Maximum altitude | 2,000 m (6,562 ft) |
| Pollution Degree | 2 |