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Wired modem
The COM24 is a compact, reliable modem widely used in remote
data collection.
Applications include:
l Remote
data logging
l Building
management systems
l Power
line monitoring
l Automatic
electricity meter reading
l Remote
diagnosis of industrial plant
l Car
parking equipment
l Traffic
monitoring systems
l Point-of-sale
monitoring
l Vending
machine remote management
l Security
alarms |
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Description:
l Overall
size is 61 x 51 x 24mm, with the case forming an isolation
barrier
l Data
and power input is through a 25-way D socket, while a 4-way
modular jack socket and line cord provide connection to the
telephone line
l Current
consumption is 30mA typical, 4mA idle
l During
inactivity the modem can be set to enter a sleep mode where
it consumes just 3µA, making it especially suitable for
use with battery powered equipment. |
Ideal for use with TDS2020F
Although any modem (including GSM) can be used with the TDS2020F embedded
computer, small size and low power consumption make the COM24 ideal.
Interfacing is simple - 4 wires provide the COM24 with serial data
and power direct from the TDS2020F. Library file #MODEM.TDS
offers a collection of routines for establishing communication
with the modem, dialling a number presented as a string and termination
of the call. No special software is required for receiving data
from the modem.
General specifications:
l Baud
rates 1200 or 2400 baud
l Power
consumption 30mA typical, 4mA idle, 3µA sleep mode
l Voltage
requirement 5 to 16 volts DC
l Temperature
range -30°C to +70°C, 95% humidity
l Dimensions
61 x 57 x 25mm
l Interface
25-way D connector |
Other features:
l Supports
industry standard AT command protocol
l Intelligent
selection between tone and pulse dialling
l Watchdog
with auto reset
l Compliant
with EU standards for pan-European connection
l Protection
against lightning strikes on the line (transient protection
5kV - 10µs)
l Impact
resistant case
l Compliant
with EN60950 for resistance to electromagnetic fields and static
discharge
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CLICK for TDS2020F Technical Manual:
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