Black Box logo
Shop all Black Box

Black Box MD940A-F Async RS232 Extender Over Fiber - DB25 Female, ST Multimode

Serial does not travel far on its own, and the MD940A-F is Black Box's answer: DB25 Female, ST Multimode. Distance: Dependent on type of multimode cable, power budget, and loss/km. Connectors are (2) ST. Autosensing 110-220-VAC power supply ensures reliability and continuous transmission. A range select feature compensates for coupled power variations.

Power: 5 VDC @ 600 mA. It measures 1-in. H x 2.7-in. W x 3.7-in. D (2.5 x 6.9 x 9.4-cm) and weighs 1.4-lb. (0.64-kg).

InterfaceRS-232 (DCE or DTE switch selectable)
Data RateTransparent up to 76.8 kbps
DistanceDependent on type of multimode cable, power budget, and loss/km; preset ranges
Connectors(2) ST; (1) DB25 (Female)
OperationFull-duplex
Power5 VDC @ 600 mA; External: 110-220 VAC, 50-60 Hz, autosensing
Dimensions1-in. H x 2.7-in. W x 3.7-in. D (2.5 x 6.9 x 9.4-cm)
Weight1.4-lb. (0.64-kg)