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Digi Utility Communication Hub with 4G LTE

Gateway for Distribution Automation

  • Software-defined multicarrier 4G LTE 
  • Enterprise routing for encryption, logging, and security features
  • 2 Ethernet ports and software selectable RS-485
  • Rugged IP66 enclosure protects from the elements
  • Din rail and power support 3rd party equipment 
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The Digi Utility Communication Hub gives utilities and energy service providers a secure, reliable 4G LTE connection for Distribution Automation and Metering applications.

Each hub contains a Digi TransPort® WR21, Digi’s 3G/4G LTE enterprise router, with two Ethernet ports and a softwareselectable RS-485 connection, housed in an IP66 polycarbonate enclosure. Within the enclosure, a battery provides backup power and an DIN rail and auxiliary power support 3rd party devices connected to the WR21.

The Utility Communication Hub is perfect for communicating with C&I meters and meter banks, recloser and switch controllers, substation equipment, pressure stations, and other utility and industrial infrastructure assets.

Digi TransPort 4G LTE routers can communicate with any meter or controller with an Ethernet or serial port. Known compatibility with GE, Elster, Landis & Gyr, Schneider, Jemstar and Shark meters.

  Digi Utility Communication Hub
Enclosure Specs
Enclosure 12 x 10 x 6 hinged box assembly; UV-resistant high-impact polycarbonate
Environmental Rating IP66
Outside Dimensions
(L x W x H)
11.94 in x 9.94 in x 6.23 in (30.33 cm x 25.25 cm x 15.82 cm)
  Digi TransPort WR21
Target Application Commercial and Industrial metering, substation network connectivity or serial telemetry requiring higher security
Management HTTP, HTTPS, FTP, SFTP, SSL, SMTP, SNMP (v1/v2c/ v3), SSH, Telnet and CLI for web management; Remote management via software tool (option); SMS management, Protocol analyzer, Ability to capture PCAP files for use with Wireshark
Security RADIUS, TACACS+, SSL, SSLv2, SSLv3, FIPS 197, L2TP, (5 tunnels included - 50 max on WR41, 200 max on WR44.); IPSec with IKEv1, IKEv2, ISAKMP; DES, 3DES and AES up to 256-bit encryption; Simple Certificate Enrollment Protocol (SCEP) for X.509 certificates, Open VPN and PPTP; IPSec/ PPP/L2TP VPN Server support; IP pass-through
Router/Firewall Bridging, NAT/NAT-Traversal, NAPT forwarding; PPP, PPPoE, GRE; IP Routing Protocols: PPP, GRE, RIP (v1 & v2), OSPF, SRI, BGP; IP Failover: VRRP, VRRP+™; VLAN support; STP (Spanning Tree Protocol); Stateful inspection firewall with scripting; Modbus over UDP/TCP; DHCP; Dynamic DNS client compatible with BIND9/No-IP/DynDNS; Automatic failover/failback to second GSM network/Standby APN, Optional IPv6
Serial 1 DB-9F RS-232/422/485
Ethernet 2 Ethernet ports
Battery SLA 1.5 Ah battery included, 20 minute runtime
Power Input 105-277 VAC
Internal Mounting Options DIN Rail with supplied power 24 VDC @ 350 mA (max), 6.25 in x 4.50 in (158.75 mm x 114.3 mm)
Antenna Types Cellular
Operating Temperature -20° C to +55° C; -25° C to +70° C with reduced cellular performance
Wi-Fi models: -5° C to +55° C; -10° C to +70° C with reduced performance

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