450U-E Wireless Ethernet Modem

Key Features:

The ELPRO 450U-E wireless Ethernet modem is a license free wireless transceiver designed to
Provide communications over ultra-range and also operate as an Access Point/Client configuration which functions as a network Bridge/Router, or serving as a Serial Server. The optimized throughputs of the ELPRO 450U-E (19.2kbps) which provides durable and secure two-way wireless communications made it possible for the modem to operate in extremely challenging outdoor environments over obstructed paths such as found in monitoring and control applications.
• 360 – 512MHz Frequency Licensed and Unlicensed Options
• 10mW – 5W RF Power
• Radio Data Rates from 4800bps to 19.2kbps
• 12.5kHz and 25.0kHz Channel Bandwidth Options
• Access Point/Client and Bridge/Router Configuration
• 10/100baseT Ethernet Port
• Spanning Tree (Self Healing) Support
• Deterministic AP to AP Mesh Network Repeatability
• MAC and IP Address Filtering
• Analog Input, Digital I/O and RS232/485 Serial
• Design for Industrial, High Noise Environments
• Over-The-Air Network Diagnostics and Configuration
• VLAN Tagging Supported for Bridging and Routing Modes
• Network Management Capabilities

Product Details

Transmitter and Receiver

360–380 MHz, 380–400 MHz, 400–420 MHz, 420–440 MHz,
430–450 MHz, 450–470 MHz, 470–490 MHz, 490–512 MHz

Transmit power 
 0.5–5.0W a (+27 to +37 dBm)
10–500 mWb (+10 to +27 dBm)

 2-level FSK or 4-level FSK

Receiver sensitivity 
12.5 kHz: –100 dBm (9600 bps), –111 dBm (4800 bps) c
25.0 kHz: –99 dBm (19.2 kbps), –110 dBm (9600 bps) c

Channel spacing
 12.5 kHz, 25.0 kHz (supports 5 or 6.25 kHz frequency steps)

Data rate 
 12.5 kHz: 4800 bps, 9600 bps
25.0 kHz: 9600 bps, 19.2 kbps

Range (LoS) 
31miles (50 km) @ 5W d
6 miles (10 km) @ 0.5W d

Antenna connector 
Single SMA connector for receive and transmit

Input and Output

Discrete input 
2.0 Vdc (on)
3.0 Vdc (off), 30 Vdc max. e

Discrete output 
FET to ground to activate external circuits
Max. voltage 30 Vdc, max. current 500 mA e
Analog inputs Single analog input range 0–25 mA, accuracy +/– 0.5%

Ethernet Port

Ethernet port 
10/100Base-T, auto MDX

Link activity 
Ethernet link with flash for activity

100M LED 
100Base-T connection

Serial Port

DB-9 female DCE

2-pin terminal block (configurable termination)

Data rate 
(bps) 1200, 2400, 4800, 9600, 14400, 19200, 38400, 57600, 115200, 230400

Protocols and Configuration

System address 
ESSID; 1 to 31-character text string

Protocols supported 
TCP/IP, UDP, ARP, Radius/802.1x, DHCP, DNS, PPP, ICMP, HTTP, FTP, TFTP, TELNET, Modbus RTU and Modbus TCP

Network parameters 
Single point to point, central master with multiple slaves,
large fixed network, network with roaming stations, redundant radio paths, automatic selection of radio paths, prioritization of traffic flows, bandwidth efficiency features, bandwidth utilization, routing, bridging, VLAN

User configuration Remote access: over the air
Local access: USB
Network access: Ethernet

WPA-PSK, WPA-Enterprise, password protected

Address filtering 
IP address, whitelist/blacklist
MAC address, whitelist/blacklist
ARP/GARP filtering, whitelist/blacklist

LED Indication and Diagnostics

LED indication 
Power/OK, RX, TX/link, RS-232, LAN, RS-485, digital I/O

Reported diagnostics 
Diagnostics are available through Web pages or optional network management system.

Network management 
Optional network management system


FCC CFR47 Part 15; EN 301 489-3; EN 301 489-5

RF (radio) 
FCC CFR47 Part 90; IC RSS 119; EN 300 113; EN 300 220; AS/NZS4295

Hazardous area 
Class I, Division 2; IEC EX Zone 2; ATEX Zone 2

EN/IEC 60950-1

UL listed

Power Supply

Nominal supply 
9–30 Vdc, under/over voltage protection

Average current draw 
120 mA @ 13.8V (idle), 70 mA @ 24V (idle)

Transmit current draw 
1.5A @ 13.8V (5W), 650 mA @ 24V (5W)


Temperature rating –22 to +140°F (–30 to +60°C)
Humidity rating 0–99% noncondensing

a Licensed model
b Unlicensed model
c BER = 1 x 10-5
d Typical maximum line-of-sight range (repeaters will extend)
e Discrete I/O and analog share a single terminal