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Modem AT Commands Multi-Tech Modems in ION Meters

Multi-Tech Modems in ION Meters

TheMulti‐TechModemModuleisthenewer‐typemodemequippedinIONmeters

thatareorderedwiththeinternalmodemoption.TheMulti‐Techmodemis

compatiblewithmosttelephonesystemsintheworld,withtheexceptionof

AustraliaandNewZealand.

Multi-Tech Internal Modem Settings

SincetheMulti‐Techmodemareuniversallycompatiblewithmosttelephone

systems,nofurtherreconfigurationofthedefaultsettingsshouldbenecessary.

International support

Insomecases,thedefaultinitializationstringfortheinternal(Multi‐Tech)modem

mayneedtobechangeddependingonthecountryitisusedin.Countriesnot

listedbelowarecompatiblewiththedefault(NorthAmerican)setting s:

 HongKong,Hungary,India ,Indonesia,Israel ,Korea,Malaysia,Philippines,

Poland,Singapore,Sl oveniaandVietnam

AT%T19,0,30

 CzechRepublic

AT%T19,0,25

 Japan

AT%T19,0,10

AT Commands for the Multi-Tech Modem

ThefollowingtablesummarizesthecompatibleATcommandsforIONmeters

equippedwiththeMulti‐Techinternalmodems:

Command Values Default Description

Attention Code

n/a

The attention code precedes all command lines except

A/, A:, and escape sequences.

A/ Repeat Last Command n/a

Repeat the last command string. Do not precede this

command with AT. Do not press ENTER to execute.

Communication

Standard Setting

n = 0–3, 15, 16 1 and 16

B0 Select ITU-T V.22 mode when modem is at 1200

bps.

B1 Select Bell 212A when modem is at 1200 bps.

B2 Deselect V.23 reverse channel (same as B3).

B3 Deselect V.23 reverse channel (same as B2).

B15 Select V.21 when the modem is at 300 bps.

B16 Select Bell 103J when the modem is at 300 bps.

Nn Modulation Handshake n = 0 or 1 1

N0 Modem performs handshake only at

communication standard specified by S37 and the B

command.

N1 Modem begins handshake at communication

standard specified by S37 and the B command. During

handshake, fallback to a lower speed can occur.

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