The BOBX21 is a breakout box designed for use with X.21 interfaces and cables.
12 pairs of LED's show:- ON, OFF, CLOCK and UNDEFINED
Pulse traps for monitoring any circuit for intermittent signal glitches
Balanced +/- voltage sources guarantee that any A to B differential is 1.5 volts
Both Male/Female connectors for both side of unit
Clocking up to 2Mbps
The unit has rechargeable batteries
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