Paradyne 3821PLUS manual S40 ± Auto Make Busy, S41 ± Dial-Line Rate, S43 ± Train Time

AT Commands and S-Registers

Table 4-2

(4 of 10)

3821Plus S-Registers

S40 ± Auto Make Busy

Register determines whether the modem automatically goes into a Make Busy state in the following conditions: during a Local Analog Loop Test; during a Self Test not invoked by powering on the modem, and after a failed Self Test; during a DTE or NMS download, and after a failed download; and upon a switch to the Service Line.

WARNING: Auto Make Busy should be enabled only for modems connected to a PBX, or to a local phone system that allows it.

Register has the following values:

0 = Disable

1 = Enable

Factory setting is Disable.

S41 ± Dial-Line Rate

Determines the modem's highest data rate and modulation scheme for operation on dial lines. S41 can also be set using the %B and %BL commands.

Register has the following values (shown in bps):

1 = 14,400 (V.32bis)

2 = 12,000 (V.32bis)

3 = 9600 (V.32bis/V32)

4 = 7200 (V.32bis)

5 = 4800 (V.32bis/V.32)

6 = 2400 (V.22bis)

7 = 1200 (V.22)

8 = 1200 (212A; invalid for UK)

10 = 0±300 (V21)

11 = 0±300 (103J; invalid for UK)

20 = 19,200 (V.32terbo)

21 = 16,800 (V.32terbo)

27 = 33,600 (V.34)

28 = 31,200 (V.34)

29 = 28,800 (V.34)

30 = 26,400 (V.34)

31 = 24,000 (V.34)

32 = 21,600 (V.34)

33 = 19,200 (V.34)

34 = 16,800 (V.34)

35 = 14,400 (V.34)

36 = 12,000 (V.34)

37 = 9600 (V.34)

38 = 7200 (V.34)

39 = 4800 (V.34)

40 = 2400 (V.34)

Factory setting is 33,600 (V.34).

S43 ± Train Time

Register controls the modem's train time for V.34, V.32terbo, V.32bis, and V.32 mode.

Register has the following values:

0 = Long (A long train is required for satellite links which have long roundtrip delays.) 1 = Short

Factory setting is Long.

3821-A2-GB20-40 January 1999 4-19