Lucent Technologies Host-Based Controller Modem AT specifications Homologation Parameters

Models: Host-Based Controller Modem AT

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Data Addendum

Host-Based Controller Modem

June 15, 1998

AT Command Set

 

 

AT Commands for Homologation Testing and Debugging (continued)

Table 13. The Homologation Parameters (continued)

Par #

Parameter Description

 

 

Range

Reference

31

TAD receive gain

0—255

 

32

Half/full wave ring detection

0

= halfwave, 1 = fullwave

33

Number of failed attempts allowed in first stage

0—255

 

ATD

 

delayed dialing

 

 

 

 

34

Number of all failed attempts ( to any number)

0—255

 

ATD

 

allowed before any further dial attempts are blocked

255 = not applicable

 

 

35

Erroneous call increment count

0—255

 

ATD

36

Dial tone validation time in multiples of 100 ms

0—255

 

ATD

37

Busy tone detection during dial tone detection flag

0

= not required, 1 = required

ATD

38

DTMF high and low tone level difference in dB

0—255

 

39

Local phone detection in speakerphone

0

= enabled; 1 = disabled

3a

Pulse dialing flag

0

= enabled; 1 = disabled

ATD

3b

Dial tone/call progress filter index

0

= 340—560 Hz

1 = 310—485 Hz

 

 

2

= 363—502 Hz

3 = 276—504 Hz

 

 

 

4

= 415—460 Hz

5 = 310—640 Hz

 

3c

Dial tone detection threshold in dB

0—255

 

3d

ABCD dialing permitted flag

0

= permitted, 1 = not permitted

ATD

3e

Comma pause duration limit in seconds. (If there are

0—255

 

ATD

 

multiple commas between digits, the total pause

 

 

 

 

 

duration is limited to the duration set by this

 

 

 

 

 

parameter).

 

 

 

 

3f

TAD transmit level in dB

0—255

 

40

Data/FAX carrier receive threshold in dB. There is a 6

0—255

 

 

dB offset in DSP. This parameter value should set to:

 

 

 

 

 

(required threshold [6 dB] DAA gain)

 

 

 

 

41

No dialtone time-out duration while detecting dialtone

0—255

 

ATD

 

with W dial modifier, in seconds

 

 

 

 

42

FAX/Data answer tone detection threshold in dB

0—255

 

43

Dialtone level (absolute value)

0—255

 

44

FAX receive threshold in dB

0—255

 

45

Pulse and tone dial in same dial string permitted flag

0

= permitted, 1 = not permitted

ATD

46

Ringer impedance relay flag

0

= off, 1 = on

 

 

47

DC loop V/I characteristics relay flag

0

= off, 1 = on

 

 

48

DC loop limiting relay flag

0

= off, 1 = on

 

 

49

Real/complex impedance

0x0X = real, Tx & Rx gains set by mercury

 

 

 

internal components. X = Don’t care

 

 

 

0x10 = real, Tx gain set by mercury

 

 

 

internal components & Rx gain set by

 

 

 

external components.

 

 

 

0x12 = complex, Tx gain set by mercury

 

 

 

internal components & Rx gain set by

 

 

 

external components. Mercury internal

 

 

 

switch used to select complex impedance.

 

4a

Mercury register CIOCA MSB value—receive gain

This parameter is relevant only when a Mercury

 

 

line codec is used.

 

 

Version 1.0

Lucent Technologies Inc.

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Lucent Technologies Host-Based Controller Modem AT Homologation Parameters, Par # Parameter Description Range Reference

Host-Based Controller Modem AT specifications

Lucent Technologies Host-Based Controller Modem AT represents a significant advancement in modem technology, particularly in the realm of telecommunications and data transmission. This modem, renowned for its efficiency and versatility, is characterized by a host-based architecture, which differentiates it from traditional modems that rely heavily on dedicated hardware.

One of the main features of the Lucent Technologies Host-Based Controller Modem AT is its ability to leverage the processing power of the host computer. By utilizing the host's CPU for data encoding and decoding tasks, the modem can reduce the need for specialized hardware components, allowing for a more cost-effective solution. This design not only facilitates lower manufacturing costs but also enhances the overall performance due to the utilization of the host's computational capabilities.

Another notable characteristic is its compliance with the AT command set, which standardizes communications between the modem and the host system. This ensures compatibility with a wide range of software applications and operating systems. The AT command set allows users to control modem functions easily, making it simpler to configure settings, initiate connections, and manage data transfer processes.

The modem also supports various communication protocols, such as V.90 and V.92, enabling high-speed data transmission over traditional telephone lines. With download speeds of up to 56 Kbps and upload speeds of up to 48 Kbps, the Lucent Technologies Host-Based Controller Modem AT is particularly suitable for Internet browsing, email, and other online activities demanding robust data throughput.

Additionally, the modem features built-in error correction and data compression protocols, such as V.42 and V.44, further enhancing the quality and speed of data transmission. These protocols help minimize the impact of line noise and ensure efficient use of bandwidth, leading to improved connection stability and data integrity.

In terms of connectivity, the Lucent Technologies Host-Based Controller Modem AT typically interfaces via a standard serial or USB port, making it compatible with most modern computers. Its compact design and ease of installation make it an appealing choice for both personal and professional use.

Overall, the Lucent Technologies Host-Based Controller Modem AT showcases significant innovation in modem technology, offering users a reliable and efficient solution for high-speed data communications. Its host-based architecture, adherence to the AT command set, and support for advanced communication protocols position it as a vital tool in the ever-evolving landscape of digital connectivity.