User's Guide for ZyXEL Omni 56K USB Modem

5.3S-Register Descriptions

In most bit-mapped S-registers, the default bit value is 0. Non-0 default values are followed by an asterisk. In some cases, default values are shown in the reference column preceded by +. Some bits are reserved for factory use and should not be changed.

5.3.1 Basic S-Registers "ATSn=x"

Table 24. Basic S-Registers “ATSn=x”

COMMAND

FUNCTION AND DESCRIPTION

+Ref.

S0=

Sets the number of rings on which the modem answers. 0 value

+000

 

disables auto-answer.

 

S1=

Counts and stores number of rings from an incoming call.

+000

S2=

Defines escape code character, default ‘+’ (43 dec.). A value of 128 to

+043

 

255 disables the escape code.

 

S3=

Defines ASCII Carriage Return.

+013

S4=

Defines ASCII Line Feed.

+010

S5=

Defines ASCII Backspace. A value of 128 to 255 disables the

+008

 

Backspace key’s delete function.

 

S6=

Sets the number of seconds the modem waits before dialing if ‘X0’ or

+003

 

‘X1’ is selected. If a setting of ‘X2,’ ‘X7’ is selected, the modem dials as

 

 

soon as it detects a dial tone. This register also sets the time-out

 

 

interval for the “W” dial modifier to wait for the dial tone. (See also

 

 

S41b4.)

 

S7=

Sets duration, in number of seconds modem waits for a carrier.

+060

S8=

Sets duration, in seconds, for pause (,) option in Dial command and

+002

 

pause between command re-executions for Repeat (>) command.

 

S9=

Sets duration, in tenths of a second of remote carrier signal before

+006

 

recognition. (Ignored if in non-FSK or half-duplex operation.)

 

S10=

Sets duration, in tenths of a second, modem waits after loss of carrier

+007

 

before hanging up.

 

S11=

Sets duration and spacing, in milliseconds of dialed Touch-Tones.

+070

Table 25. Extended S-Registers "ATSn=x"

COMMAND

Bit

dec

hex

FUNCTION AND DESCRIPTION

Ref.

 

S13=

Bit

dec

hex

Bit-mapped register.

+000

 

 

1

2

2

Capture modem manufacturer information during

 

 

 

 

 

 

V.42 handshake, can be displayed at ATI2 <Last

 

 

 

 

 

 

Speed/Protocol> line if available (‘Flash’ or ‘ZyXEL’

 

 

 

 

 

 

 

 

 

5-22

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ZyXEL Communications 56K manual Register Descriptions, Basic S-Registers ATSn=x, Extended S-Registers ATSn=x

56K specifications

ZyXEL Communications has long been a key player in networking technologies, and their 56K modems stand out as a testament to the company’s commitment to high-performance connectivity. The ZyXEL 56K modem provides users with efficient dial-up internet service, delivering reliable performance for both home and small office environments.

One of the main features of the ZyXEL 56K modem is its data transfer capability, offering speeds of up to 56 Kbps. This speed is accomplished by utilizing the latest advancements in modem technology, enabling users to experience smoother browsing, faster downloads, and efficient email communications. Despite being primarily a legacy technology, the ZyXEL 56K modem continues to be valued in areas where broadband connectivity options are limited or unavailable.

The ZyXEL 56K modem utilizes V.90 and V.92 standards—these protocols define how data is transferred over phone lines. With the V.90 standard, the modem can achieve a maximum download speed of 56 Kbps while upload speeds can reach up to 33.6 Kbps with the V.92 standard. V.92 also introduces enhanced features such as a modem on hold, enabling users to receive voice calls while connected to the internet.

In terms of characteristics, the ZyXEL 56K modem is designed with user experience in mind. Its compact, lightweight design allows easy installation and placement, making it ideal for both home users and professionals. The intuitive user interface, coupled with straightforward installation procedures, ensures that even those with minimal technical knowledge can set up the device without hassle.

Additionally, the ZyXEL 56K modem supports various connectivity options, including serial and USB interfaces, allowing compatibility with a wide range of computers and operating systems. This versatility ensures that users can seamlessly connect to their existing devices, enabling broad usage opportunities.

The modem also features built-in error correction and data compression techniques, which improve data integrity and optimize transmission speeds. Overall, the ZyXEL Communications 56K modem remains a reliable choice for users who require dependable dial-up internet access, showcasing the brand's dedication to fostering connectivity in diverse environments.