
Specification
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2.10.2 RS232 PORT
NOTE: For direct connection an RS232 null modem (crossover) cable is required. This is
rated to a maximum cable length of 15 m.
NOTE: For a single module to PC connection and distances up to 6 m (20 feet) the USB
connection method is more suitable and provides for a lower cost alternative to RS485 (which
is more suited to longer distance connections).
The RS232 port on the controller supports the MODBUS RTU protocol and is for connection to a
single MODBUS master device only.
The MODBUS register table for the controller is available upon request from the DSE Technical
Support Department.
RS232 is for short distance communication (max 15m) and is typically used to connect the controller
to a telephone or GSM modem for more remote communications.
The various operating parameters (such as coolant temperature, oil pressure, etc.) of the remote
engine are viewed or changed.
Many PCs are not fitted with an internal RS232 serial port. DSE DOES NOT recommend the use of
USB to RS232 convertors but can recommend PC add-ons to provide the computer with an RS232
port.
2.10.2.1 RECOMMENDED EXTERNAL MODEMS
NOTE: For GSM modems a SIM card is required, supplied by the GSM network provider:
For SMS only, a ‘normal’ voice SIM card is required. This enables the controller to send SMS
messages to designated mobile phones upon status and alarm conditions.
For a data connection to a PC running DSE Configuration Suite Software, a ‘special’ CSD
(Circuit Switched Data) SIM card is required that enables the modem to answer an incoming
data call. Many ‘pay as you go’ services do not provide a CSD (Circuit Switched Data) SIM
card.
Multitech Global Modem – MultiModem ZBA (PSTN)
DSE Part Number 020-252
(Contact DSE Sales for details of localisation kits for these modems)
Sierra Fastrak Xtend GSM modem kit (PSU, Antenna and modem)*
DSE Part number 0830-001-01
Содержание 8610 MKII
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