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MDR-2000
V3
User's Reference Manual
Data Collection
Code
Message
M2KTHR
Storage Threshold Exceeded
M2KIDL
PBX Idle Time Threshold
Exceeded
M2KPBD
M2K
Possible Battery Depletion
M2KCCD
Contact Closure Detected
3.5 Modem Setup
Description
The threshold set with the Set Threshold
command has been exceeded
This alarm indicates that the PBX has not
output any information to the MDR-2000 in the
interval specified with the Set PBX Idle
command.
Indicates that a possible depletion
of
the
internal backup batteries has been detected
(specially equipped units only).
Indicates that an internal contact closure has
been detected (specially equipped units onl
y).
The MDR-2000 is usually not aware
of
the type
of
modem that is connected or
if
in fact it is
connected to a modem or directly to the host computer. When a modem is used it must meet
certain criteria in order for successful operation with the MDR-2000.
The modem must be asynchronous and support the standard
'AT'
modem command set, which is
also known more commonly as the Hayes command set. The modem must be configured for 'Full
Word' or 'Verbal' responses. These are sometimes referred to as results codes. This is the default
setting for most modems, but can be set by entering the commands
'ATQ'
or 'ATQO' to enable
results codes, and '
ATVl'
to setup the modem for 'Full Word' responses.
Character echo to the
'AT'
commands must be suppressed. This is done by entering the command
'
ATE'
or '
ATEO
'. The default is
'ATEl'
which causes the modem to echo characters. As well the
modem must be set to auto-answer mode. This permits the modem to answer the telephone line
when the host computer's modem is dialing to collect data. The command to enable auto-answer
mode is 'ATSO=
I'.
The sets the modem to answer the telephone after 1 ring. The default is to
disable auto-answer mode so this command is essential.
These options must be setup
before
the modem is placed in the field. They are saved by entering
the command
'AT&W'
. Whenever the modem is reset by an 'ATZ' command or powered up the
settings stored by the '
AT
& W' are used.
3-9
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