Nethix - Model WE500 Dual Modem - Wireless Unattended Remote Monitoring and Control System
From WE Family
Equipped with two comumunication channels, for a reliable, secure and redundant remote monitoring and control; it’s the ideal solution for all the applications, that require the highest reliability in the acquisition and logging of data from unattended stations. The Dual Modem WE500 includes two completely indipendent communication channels on mobile network GSM/GPRS/UMTS/HSPA. They allow the parallel interaction with two different carriers. The redundancy of the communication channel is granted : the system is composed of two internal modems, two antennas and two SIM cards. This redundancy, that is unique in the market, provides enhanced availability and reliability of the system, even in case of mobile network failures.
Product Overview
MONITORING
Monitors the system status and detects parameters changes. WE500 provides a sophisticated events system that allows to send SMS, emails or rings when it detects changes in activation threshold, in one or more parameters simultaneously or even based in mathematical expressions.
DATALOGGING
Stores periodically the system parameters specificed by the user. All the monitored parameters and triggered events are stored in the capable internal memory, in an external USB key or they can even be sent to a web portal at user defined intervals.
REMOTE ACCESS
Through a VPN channel WE500 provides a direct and transparent communication to the monitored devices and machines. It allows to interact in real time and provide remote assistance.
REMOTE MANAGEMENT
Remotely handles the different functions of a system: switching on/off, parameters settings and thresholds activation. WE500 provides different communication mechanisms for system controlling, including the most popular protocols of the Indystry 4.0 (Modbus, TCP/IP and others).
The redundancy is provided through three different policies that can be selected according to specific users needs:
SWITCH MODEM ON ERROR
Modem A is always working, but if a connectivity issue arises, such as continuous data connection failures or modem malfunctioning, it switches to modem B and remains on this modem until a new issue arises on this modem, causing switch back to modem A. This is the default mode.
TIME SHARING
Each modem works for a given period of time. When that period timeouts, it switches to the other modem. The timeouts of each modem can be different. This policy could be useful when the user wants to consume the SIMs credit evenly. If modem A is currently working and presents an issue such as continuous data connection failures or modem malfunctioning, it switches to modem B and remains on this modem until its period times out. At that time, it switches back to modem A.
PRIORITY TO GIVEN MODEM
One of the two modems, eg. modem A, is always working . If a connectivity issue arises, such as continuous data connection failure or modem malfunctioning, it switches to modem B, but it keeps monitoring modem A until it recovers. At that point it switches back to modem A and remains on it.
Specification
- CPU : CPU ARM9 AT91SAM9260 @ 210MHz
- RAM : 64 MBytes
- Flash : 1 GByte NAND
- Operating system : Linux
- Ethernet : 10/100 Mbit/s
- Modem 1 : 4G
- 10Mbps downlink / 5Mbps uplink (LTE)
- Quad band GSM/GPRS/EDGE
- Quad band LTE 3G
- 14.4Mbps downlink / 5.76Mbps uplink (HSPA)
- Quad band GSM/GPRS/EDGE
- Quad band HSDPA/HSUPA
- Modem 2 : 2G
- Quad band GSM/GPRS
- Communication : 2 RS232 serial ports
- 1 RS485 serial port
- Digital inputs : 8 inputs, non isolated, dry contact
- Analog inputs : 2 inputs, non isolated, 0-5V, 0-10V 0..20mA
- (configurable for 4..20 mA), NTC 10K
- Digital outputs : 2 relays, 1A 30VDC
- Power supply : 9 - 32 VDC
- Average absorption : 300 mA @ 12VDC
- Peak absorption : 500 mA @ 12VDC
- Weight : 275 g
- Dimensions (L x W x H) : 45 x 120 x 100 mm
- Box : Plastic, DIN bar mountable
- Storage temperature : -25° C - +85° C
- Working temperature : -10° C - +60° C
- Humidity : 5% - 95% (non condensing)
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