ERT-A2 ALERT2 Configuration Manual
Revision 1.0
17
Field Station units will operate at the lowest current consumption modes and therefore in rain only
applications can operate from internal battery for more than 2 years without replacement.
Field stations can be optioned with either VHF or UHF radio, 25W VHF radio, Cellular or Satellite
communications options.
Capability Summary:
-
Single communications medium through either standard VHF, Cellular, Satellite, or RS232
interfaces
-
Lowest power configuration with Rain (pulsed or digital) gives typically 1.5yr battery life.
-
ALERT1 over radio support legacy applications
-
RS232 support ALERT2 ASCII or Binary modes
-
External pulse, digital, analog and SDI-12 IO
-
Internal IO diagnostics:
o
Supply monitoring (battery/supply in)
o
RSSI, temperature
o
Radio received packets good/bad status.
Repeater Station
The standard repeater can be configured through the
normal configuration menu. There is not any special
hardware required for repeater mode.
The repeater can be used either in ALERT2 or ALERT1
protocol modes and the protocol can be configured in the
communications setting of the unit.
These units also allow for a secondary communications
channel which is useful for redundant communications path
through internal cellular modem. If redundant
communications is required then this must be specified at
time of ordering to include the internal cellular modem.
Repeater units can access all sensor input types the same way a transmitter station can. Repeater
units operate with the radio receiver active, allowing sensor data to be received from other sites and
therefore run at a higher power consumption than a field station.
Repeater units also allow for receiving of ALERT2 messages into the RS-485 interface to be
retransmitted by the repeater. This feature allows for more advanced repeating capabilities such as
high capacity full duplex, multi-frequency or ALERT1 migration installations to be created as outlined
later in this section.
Capability Summary:
-
Single communications medium through either standard VHF, Cellular, Satellite, or
RS232/RS485 serial interfaces
-
Serial support Alert 2 ASCII or Binary input or output modes
-
ALERT1 migration data to ALERT2 network though serial input (future update)
-
Serial output allows for communications redundancy mode.
-
External pulse, digital, analog and SDI-12 IO
-
Internal IO diagnostics:
Содержание ERRTS ALERT2
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