Mercury Modem - Honeywell Mercury User Manual

Mercury Modem

Designed for harsh environment operations, the Mercury Modem provides
for remote instrument access and data collection. The modem board can
be retrofitted inside existing ECATs and ERs or installed into a separate
enclosure as a stand-alone modem. Stand-alone modems may also include
a variety of I.S. Barriers, power options and multi-port operation.
Instruments connected to a Mercury Modem may be called by host
computer systems to retrieve data, or the modem can call in utilizing
Mercury Instruments' Alarm-Link software when an instrument alarm
occurs.
The standard modem configuration is a single channel, battery-operated
2400 baud field modem. On-board surge protection components are
incorporated to provide reliable operation. Circuit board jumpers permit
setting the local baud rate for the connected instrument to be different than
the modulated baud rate. This feature permits leaving the instrument's
baud rate set at 9600 baud for direct connections with a laptop even
though the modem operates at 2400 baud.
The modem comes standard with either an Alkaline Disposable Pack or
Alkaline Receptacle Pack, but an optional Lithium Power Pack may be
substituted. A DC Power Supply with battery backup is also available as
an option for locations where AC power is available.
An optional expansion board permits three additional serial ports (and
alarm channels) to be added so that a total of four instruments may be
accessed by a single modem on one phone line. Modem port-switching is
handled automatically by the software when using Mercury Instruments'
Link software packages. When using the multi-port feature, it is not
necessary that the instruments or devices be of the same type.
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