Command

Description

 

In

Identification

 

I0

Display product code.

I1

Display firmware checksum.

I2

Verify firmware checksum. (Report OK if correct.)

I3

Display firmware revision.

I4

Display identifier string.

I5

Display country code.

I6

Display Data Pump modem and revision.

Ln

Speaker Volume

(Default=1)

L0,1

Low volume.

 

L2

Medium volume.

 

L3

High volume.

 

Mn

Speaker On/Off

(Default=1)

M0

Speaker always off.

M1

Speaker on until modem detects the carrier signal.

M2

Speaker is always on when modem is off-hook.

M3

Speaker off during dialing, on after dialing until modem

 

detects the carrier signal.

Nn

Automode Enable/Disable (Default=1)

 

This command is provided for compatibility. The +MS

 

extended format command should be used with new

 

applications.

 

N0

Automode disabled, connect at the data rate defined by S37.

N1

Automode enabled.

O

Return Online Instructs the modem to exit Online Command

 

mode and return to Data Mode.

P

Pulse Dial (Default=T)

Qn

Result Codes (Default = 0)

Q0

Enables display of result codes.

Q1

Disables display of result codes.

Sn

Write S Register

 

Sn=v

Write the value v into S Register n.

Sn?

Read S Register. Report the value of S Register n.

T

Tone Dial (Default=T)

Vn

Result Codes Format (Default=1)

V0

Enable short-form result codes. (Numeric)

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Jaton V.90 user manual Command Description

V.90 specifications

The Jaton V.90 modem is a classic example of 56K technology that revolutionized dial-up internet connections in the late 1990s. As one of the early models supporting the V.90 standard, this modem enabled users to experience faster internet speeds compared to its predecessors. The V.90 protocol allowed for a maximum download speed of 56 Kbps, offering significant improvements over the previous V.34 modem, which capped out at 33.6 Kbps.

One of the standout features of the Jaton V.90 is its ability to adapt to different line conditions, ensuring optimal performance regardless of the quality of the telephone line. The V.90 standard provided a retransmission mechanism that allowed data to be resent if errors occurred during transmission, improving reliability and reducing the likelihood of dropped connections.

The modem incorporates technologies such as error correction and data compression. With built-in error correction protocols like V.42 and MNP, the Jaton V.90 can detect and correct common transmission errors, which is vital in maintaining a stable connection. The data compression technology, which uses MNP Class 5, enhances throughput by compressing data before transmission. As a result, users could effectively increase their upload speeds and minimize latency, creating a more seamless browsing experience.

The hardware features of the Jaton V.90 modem typically include a standard RJ-11 telephone connector, which makes it easy to connect to existing phone lines. The modem may come with both internal and external configurations, allowing flexibility depending on user preferences and system requirements. The external version often features indicator LEDs that provide real-time feedback on connection status, data transfer activity, and power status.

Compatibility is another crucial aspect of the Jaton V.90 modem. Operating with a variety of systems, it was designed to work with Windows, Mac OS, and other operating environments, making it accessible for a wide range of users. Additionally, the modem generally supports various software applications for easy configuration and management.

Ultimately, the Jaton V.90 modem played a pivotal role in facilitating internet access during a transformative period, laying the groundwork for future high-speed connections. While modern broadband solutions have since eclipsed dial-up speeds, the legacy of the Jaton V.90 as a reliable and innovative piece of technology remains significant in the history of internet connectivity.