CHAPTER 4: AT Commands, S-Registers, and Result Codes

Register

Unit

Range

Default

Description

 

 

 

 

 

S35

decimal

0–1

0

0 disables, 1 enables the V.25

 

 

 

 

data calling tone, which allows

 

 

 

 

remote data/fax/voice

 

 

 

 

discrimination.

 

 

 

 

 

S36

decimal

0–7

7

Specifies the action to take if

 

 

 

 

negotiation fails when error

 

 

 

 

control is selected. (See S48.)

 

 

 

 

 

S37

decimal

0–19

0

Sets the maximum V.34

 

 

 

 

upstream speed at which the

 

 

 

 

modem attempts to connect.

 

 

 

 

0

= maximum modem speed

 

 

 

 

1

= reserved

 

 

 

 

2

= 1200/75 bps

 

 

 

 

3

= 300 bps

 

 

 

 

4

= reserved

 

 

 

 

5

= 1200 bps

 

 

 

 

6

= 2400 bps

 

 

 

 

7

= 4800 bps

 

 

 

 

8

= 7200 bps

 

 

 

 

9

= 9600 bps

 

 

 

 

10 = 12,000 bps

 

 

 

 

11 = 14,400 bps

 

 

 

 

12 = 16,800 bps

 

 

 

 

13 = 19,200 bps

 

 

 

 

14 = 21,600 bps

 

 

 

 

15 = 24,000 bps

 

 

 

 

16 = 26,400 bps

 

 

 

 

17 = 28,800 bps

 

 

 

 

18 = 31,200 bps

 

 

 

 

19 = 33,600 bps

 

 

 

 

 

 

55

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Black Box MD403A user manual Unit Range Default Description

MD403A specifications

The Black Box MD403A is a powerful and versatile device widely recognized for its advanced technology and its ability to streamline data communication. Ideal for both personal and professional use, the MD403A is designed to cater to various environments, from small offices to larger enterprises.

One of the main features of the MD403A is its robust connectivity options. It supports multiple interfaces, including USB, HDMI, and Ethernet, allowing seamless integration with various devices such as computers, projectors, and IP networks. This flexibility makes it a popular choice for businesses that require reliable data transmission across different platforms.

The device is equipped with advanced signal processing capabilities that ensure high-quality data transfer. Utilizing cutting-edge technology, the MD403A minimizes signal loss, thereby enhancing performance and ensuring that the transmitted data remains intact. This feature is particularly crucial in scenarios where large amounts of data need to be transmitted quickly and without loss of quality.

Another significant characteristic of the Black Box MD403A is its user-friendly design. The interface is intuitive, making it easy for users of all technical abilities to navigate the system effortlessly. It typically comes with a straightforward setup process, minimizing downtime and allowing users to get up and running quickly.

The MD403A also boasts advanced security features. It employs multiple encryption protocols to safeguard sensitive information during transmission. With increased cybersecurity concerns, this feature is essential for businesses that handle confidential data, ensuring compliance with various regulatory requirements.

Additionally, the device supports various video resolutions, making it suitable for both standard and high-definition applications. This feature is particularly beneficial for users who want to deliver high-quality presentations or video content without compromising on clarity.

In terms of durability, the MD403A has a sturdy design that can withstand the rigors of daily use. Its compact form factor allows for easy portability, making it an ideal choice for professionals who are always on the move.

In summary, the Black Box MD403A combines advanced features, multiple connectivity options, robust security, and ease of use, making it an essential tool for modern communication needs. Its adaptability and performance make it a preferred choice for users seeking reliable data transfer solutions in diverse settings.