Mo dem Com pat i bil ity
and Com mands
The ML2400A Se ries Power Me ter firm ware sup ports Hayes-compatible mo -
dems. The com mands used are as fol lows:
Com mand Def i ni tion
+++ mo dem es cape se quence
atz re set mo dem to fac tory de faults
at&h1&r2x4v1q0f1s0=1e0 ini tial ize mo dem for power me ter use
atd”num ber” dial “num ber”
Se rial In ter face
Re mote Op er a tion
Ex am ple
This sec tion pres ents an ex am ple of Autodial us ing a ter mi nal em u la tor on a
re mote com puter ( \n = newline, \r = car riage re turn).
1. Initialize local modem, using the same setup as the power me ter:
at&h1&r2x4v1q0f1s0=1e0\r
&h1
trans mit data flow con trol - use CTS
&r2
re ceive data flow con trol - use RTS
x4
full re sult code set ting
v1
re sult codes in ver bal mode
q0
re sult codes dis played
f1
lo cal data echo OFF
s0=1
auto an swer af ter 1 ring
e0
lo cal com mand echo off
The mo dem should re spond:
OK\n\r
2. Dial power me ter:
atd<phone num ber>\r
When the mo dem fi nally con nects to the power me ter mo dem, the re sponse
will be:
CONNECT\n\r
There might be ad di tional in for ma tion af ter “CONNECT” but be fore the line
ter mi na tion char ac ters.
3. The re mote com puter is now con nected to the power me ter. The power me -
ter can now be asked to iden tify it self:
*IDN?\n
The re sponse from an ML2408A op er at ing in na tive mode will be:
5-8 ML2400A OM
RS232 MODEM SUPPORT PROCEDURES
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