"This New NetGuardian 420 Is A Medium-Capacity SNMP RTU With Built-In Terminal Server..."

Do you have sites where a large-capacity RTU isn't necessary, but you still need advanced functions like a built-in terminal server? Those are exactly the kinds of sites that the NetGuardian 420 was designed for. Like a lot of networks, you probably have those "in-between capacity" sites that aren't exactly small, but they don't require a big RTU with capacity you'll never use. For those sites, consider this "just right" SNMP RTU. In fact, the NetGuardian was created to address a real-world client need. The client needed a hybrid of the NetGuardian 832A and 216 at a value point where wide-scale deployments would be feasible.

This new NetGuardian 420 has 20 discrete inputs to collect alarms from a variety of equipment and up to 6 analog inputs for monitoring sensors, battery levels, generator fuel levels, and other important values. Plus, it's got a built-in terminal server for remotely accessing serial equipment.

NetGuardian 420 SNMP RTU Back Panel View
The NetGuardian 420 back panel has dual power feeds for increased reliability, inputs for the discretes, analogs, and control relay outputs, a POTS/dial-up telco jack, a 4-port terminal server for remotely accessing serial equipment, and a 10/100 LAN jack for SNMP alarm reporting and email/cell phone notifications.

The NetGuardian 420 is the first RTU to fit between the capacity of the NetGuardian 832A and the NetGuardian 216. This new RTU is just as advanced and intuitive, but with 4 control relays and 20 discrete alarms. This means you get an SNMPv3-capable RTU, with RADIUS authentication and a 4-port terminal server, plus 25% more alarm capacity than the NetGuardian 216.

NetGuardian 420 with LCD screen Front Panel View
The NetGuardian 420 front panel has a serial Craft port for initial unit provisioning, indicator LEDs, menu and alarm acknowledgment buttons, a backlit LCD display, an audible alarm speaker, and internal temperature sensor, and an external temperature probe port.

The 11 Key Advantages of the NetGuardian 420:
  1. Just right alarm capacity - In between the NetGuardian 832A and 216
  2. 4-port terminal server for reach through access to operate equipment via LAN
  3. Serial port options include RS232, RS485, and 202 modem
  4. 20 discretes, 4 control relays, and up to 6 analogs
  5. Alarm capacity expandable via NetGuardian DX, just like the G5
  6. Alarm notifications include Email, pager, and text messaging
  7. 32 ping targets
  8. Supports SNMPv1, v2c and v3
  9. Supports RADIUS authentication
  10. HTTPS (secure web) and real-time clock options available
  11. LCD display

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