MultiModemZPX User Guide

4 AT Commands, S-Registers, and Result Codes

 

Register Unit

Range Default Description

 

 

19

50666 bps

 

 

20

52000 bps

 

 

21

53333 bps

 

 

22

54666 bps

 

 

23

56000 bps

S42

decimal

0–1

1

Enables/disables the 56K auto rate. When

 

 

 

 

56K auto is disabled, fallback to V.34 is also

 

 

 

 

disabled. 0 = disable; 1 = enable.

S48

decimal

7 or 128

7

Enables (7) or disables (128) LAPM negotia-

 

 

 

 

tion. The following table lists the S36 and

 

 

 

 

S48 configuration settings for certain types

 

 

 

 

of connections.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S48=7

 

S48=128

 

 

 

 

 

 

 

 

 

 

 

 

S36=0, 2

LAPM or hangup

 

Do not use

 

 

 

 

 

 

 

 

 

 

 

 

S36=1, 3

LAPM or async

 

Async

 

 

 

 

 

 

 

 

 

 

 

 

S36=4, 6

LAPM, MNP, or hangup

 

MNP or hangup

 

 

 

 

 

 

 

 

 

 

 

 

S36=5, 7

LAPM, MNP, or aysnc

 

MNP or async

S89

 

 

 

 

 

 

seconds

0, 5–255

0

Sets the inactivity time in the off-line com-

 

 

 

 

mand mode before the modem goes into

 

 

 

 

standby mode. A value of 0 disables stand-

 

 

 

 

by mode; values of 1–4 set the value to 5.

S108

decimal

0–3, 6, 7

6

Selects the 56K digital loss if using the modem

 

 

 

 

thru a PBX line. The default value is -6 dB

 

 

 

 

loss, the value used when calling from a

 

 

 

 

typical POTS line long distance.

 

 

 

 

Value

Digital loss

 

 

 

 

 

0

-0 dB digital loss, no robbed-bit

 

 

 

 

 

signaling

 

 

 

 

 

1

-3 dB PBX digital loss

 

 

 

 

2

-2 dB digital loss

 

 

 

 

 

3

-3 dB digital loss

 

 

 

 

 

6

-6 dB digital loss

 

 

 

 

 

7

-0 dB digital loss with robbed-bit

 

 

 

 

 

signaling

 

S109

decimal

0–62, even

18

Selects the PCM (56K) operating mode.

 

 

numbers

 

Interactive with the +PQC= command.

 

 

 

 

Bit

56K mode

 

 

 

 

 

0

Reserved—always 0

 

 

 

 

 

1

Enable V.90

 

 

 

 

 

2

Enable quick connect (phase 1)

 

 

 

 

3

Enable PCM upstream

 

 

 

 

4

Enable V.92

 

 

 

 

 

5

Enable quick connect (phase 2)

42

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Image 47
Multi-Tech Systems MT5634ZPX-PCI-V92 manual Value Digital loss, Bit 56K mode

MT5634ZPX-PCI-V92 specifications

The Multi-Tech Systems MT5634ZPX-PCI-V92 is a high-performance V.92 data/fax modem designed to enhance communication capabilities in various applications. This modem is particularly well-suited for commercial and industrial environments where reliable connectivity is crucial.

One of the standout features of the MT5634ZPX-PCI-V92 is its support for the V.92 protocol, which allows for quicker uploads and improved connection speeds compared to earlier standards. It offers download speeds of up to 56 Kbps and upload speeds of up to 48 Kbps, making it an excellent choice for businesses that rely on time-sensitive data transmission. The modem's ability to maintain reliable connections even over noisy telephone lines is a critical aspect of its design, ensuring that users can depend on it for essential communications.

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A notable characteristic of the MT5634ZPX-PCI-V92 modem is its PCI interface, which allows for easy integration into desktop systems. This plug-and-play capability simplifies installation and setup, making it accessible for users with varying levels of technical expertise. The modem is built on a reliable hardware platform, characterized by its durable components, making it ideal for environments where long-term use is expected.

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