Mega_Link 2

Introducing our latest generation, AES-256 Encrypted Telemetry & Control System

Overview

Mega_Link 2 provides secure telemetry & control transmission with all messages encrypted using the AES-256 data encryption standard in response to the UK implementing the NIS Directive through the Network and Information Systems Regulations (2018). The NIS Regulations apply to operators of essential services. It offers cost effective, secure, robust and dependable performance, making it the ideal solution for your telemetry and control applications.

Features

Highly user configurable; any Mega_Link 2 unit can operate as a basestation or an outstation or a repeater outstation.
Mega_Link 2 can be configured to communicate as follows:
- 458MHz UHF radio, up to 15km range depending on topography and aerial system
- 4G LTE Cat-1 mobile networks
- 10/100M Ethernet TCP/IP LAN/WAN or external modem
The plant I/O interfaces are compatible with a wide range of digital & analogue instruments and equipment such as volt-free contacts, depth transducers, flow meters and electrical switchgear:
- 8 Digital Inputs (volt-free contact)
- 8 Digital Outputs (relay contact)
- 2 Analogue Inputs (fully isolated, 0…20mA), with a regulated 12Vdc transducer supply
- 2 Analogue Outputs (0…20mA)
I/O interfaces are expandable to add a further 256 physical inputs and outputs for larger system applications, using a range of expansion modules
Power supply:
- Internal 110/240Vac mains supply (with battery backup)
- 12Vdc or 24Vdc
DIN rail mounted for fitment in existing equipment racks or Churchill Controls can supply Mega_link 2 along with expansion modules ready built into a range of standard IP67 enclosures for quick and easy installation

Advanced Features

AES-256 cryptographic encryption for all COMs interfaces
Space for 2^nd interface module to give Dual Comms operation for applications requiring extra resilience
RS232/RS485 port for interface to PLC and SCADA equipment using industry standard fieldbus protocols
Digital and analogue exception reporting for alerting change of conditions past pre-determined thresholds
Outstations can also be configured to operate in a repeater mode to relay the radio link over extended distances and overcome otherwise challenging geographical features and locations
Versatile and user configurable; communications failure, battery condition and RSSI monitoring functions
Built-in colour LCD display and joystick user interface for easy monitoring of status and operation
USB programming port for connection to Windows based PC or tablet running GUI software for setting up system configurations, data routing tables, detailed status monitoring and diagnostics etc.

Product Numbering

The Mega_Link 2 part number is in the format 7800-a b c d

The choice of in-built power supply is defined by the suffix ‘a’ in the part number:

a = 1: 12Vdc nominal (4….16Vdc)
a = 2: 24Vdc nominal (12…36Vdc)
a = A: AC mains (85…240Vac)
a = B: Alkaline battery pack (4 x D cells)

The choice of communication interface modules built into COM1 is defined by the suffix ‘b’ in the part number:

There is a similar choice of optional second communication interface module built into COM2, defined by the suffix ‘c’ in the part number.

Suffix ‘d’ of the part number defines whether or not the LCD colour display and joystick are fitted:

d = 0: No display
d = D: Display fitted

COM3 provides an RS232 or RS485 interface and these can be easily connected to third party equipment by using our DB9 – RJ45 Adaptors

How the Mega_link 2 compares with its predecessor

All Mega_Link 2 messages are encrypted using the AES-256 data encryption standard in response to the UK implementing the NIS Directive through the Network and Information Systems Regulations (2018). The NIS Regulations apply to operators of essential services. Mega_Link 2 offers cost effective, secure, robust and dependable performance, making it the ideal solution for your telemetry and control applications.

	Mega_Link 1	Mega_Link 2
AES-256 Encryption
8 DIg IP, 8 Dig OP, 2 Ana IP, 2 Ana OP + Expansion
458 MHz Digital Radio (Licence free)
2G GSM/GPRS
4G LTE Cat-1
Dual Comms
12Vdc, 24Vdc or 120/240Vac (with battery back-up)
Modbus RTU (Master or Slave)