US Robotics 56K USB MODEM - Manual 

58, 52 terminal mode Software mode that allows direct communication with the modem. This mode is also known as command mode. throughput The amount of actual user data transmitted per second without the overhead of protocol information such as start/stop bits or frame headers and trailers. Compare it wi…

8, 2 Product Features Modulation Schemes ITU-T V.90 ITU-T V.34 (Inc 33,600) ITU-T V.32bis ITU-T V.32 ITU-T V.22bis ITU-T V.22 ITU-T V 23 ITU-T V.21 Error Control and Data Compression Schemes ITU-T V.42 ITU-T V.42bis MNP 2-5 Fax Modulation Schemes ITU-T V.17 ITU-T V.29 ITU-T V.27ter ITU-T V…

68, 62 O1 Returns online and retrains Qn Displays/suppresses result codes Q0 Displays result codes Q1 Quiet mode; no result codes Q2 Displays result codes only in Originate mode Sr.b=n Sets bit .b of register r to n (0/OFF or 1/ON) Sr=n Sets register r to n Sr? Displays contents of S- Register r S$ D…

92, 86 Register Default Function S28 0 Eliminates the V.32 answer tones for a faster connection 8 Default item, all times are in tenths of seconds 255 Disables all connections except V.32 at 9600 bps S29 20 Sets the duration, in tenths of a second, of the V.21 answer mode fallback timer S30 0…

75, 69 &Dn Controls Data Terminal Ready (DTR) operations &D0 DTR override &D1 DTR toggle causes online Command mode &D2 Normal DTR operations &Fn Loads a read-only (non-programmable) factory configuration &F0 Generic template; no flow control &F1 Hardware flow control templat…

52, US Robotics 56K USB MODEM - 46 duplex Duplex indicates a communications channel capable of carrying signals in both directions. See half duplex, full duplex. Electronic Industries Association (EIA) This association is a group which defines electronic standards in the U.S. error control A variety of techniques…