+10 to 30 VDC from an external power supply (if needed, please contact Black Box Tech Support)
3.9"H x 2.9"W x 0.9"D (9.9 x 2.3 x 7.4 cm)
Operating Environment
RS-232: Half- or full-duplex; RS-422: Full-duplex; RS-485: 2-wire half-duplex or 4-wire full-duplex
Temperature: -40 to +176° F (-40 to +80° C); Humidity: Up to 95%, noncondensing