Full Specifications: NetGuardian 420

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.

Full Specifications
Protocols:	SNMPv1, v2c, v3; DCPx, DCPf, TRIP, SNPP, SMTP, TAP, HTTP, FTP, Telnet, ICMP, RADIUS
Discrete Inputs:	20 (Expandable via NetGuardian DX Expansion units)
Analog Inputs:	Up to 6 (2 user-defined, 1 internal temperature, 1 external temperature, 2 for power feed monitoring)
Control Outputs:	4 (2 Form A and 2 Form C relay contacts) Expandable via NetGuardian DX Expansion units)
Max Voltage:	60 VDC/120 VAC
Max Current:	1 Amp, AC/DC
Ping Alarms:	32
Interfaces:	4 RJ45 serial ports (terminal server) 1 RJ45 10/100 Ethernet port 1 RJ11 telco jack 1 - 50-pin connector for discretes and relays 1 - 4-pin screw plug for analogs
Modem:	33.6K internal (optional)
Dimensions:	1.75"H x 17"W x 7.5"D
Mounting:	19" or 23" rack
Weight:	3.5 lbs
Power Input:	-48VDC (-40 to -70 VDC) Optional: -24VDC Wide range adn positive voltage builds also available
Visual Interface:	LCD display, 9 bi-color LEDs, 5 unicolor LEDs
Current Draw:	200mA max @ -48VDC
Fuse:	3/4 Amp GMT
Operating Temperature:	32 to 140 degrees F (0 to 60 degrees C)
Operating Humidity:	0%-95% noncondensing
Build Options:	Real-time clock HTTPS (secure web) Telco dialup Temperature sensors Battery and voltage monitoring Industrial temperature rating Dual power feeds Serial port options: RS232, RS485, or 202 modem D-Wire option 10/100 BaseT switch +12/+24 VDC sensor power
RoHS 5 Approved	Yes

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