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Digi TransPort® WR21

Compact enterprise class cellular router


  • Compact, low-cost, flexible cellular routing platform with standard and enterprise feature sets
  • Standard option includes basic routing and IP filtering; Enterprise option includes advanced routing protocols, VPN and stateful firewall
  • High-performance architecture, flexible power and extended operating temperature
  • 2.5G/3G/4G cellular interface: GSM, EDGE, HSPA, HSPA+ and 1xRTT CDMA/EV-DO RS-232 serial and 10/100 Ethernet or RS-232/422/485 serial and 2-port dual Ethernet switch


Wireless Interfaces
LTE - EMEA (L1) 800/850/900/1800/1900/2100/2600 MHz; 3G fall back to 850/900/1900/2100 MHz and 2G fall back to 850/900/1800/1900 MHz; Transfer rate (max): 50 Mbps up, 100 Mbps down
LTE - North America (L5) Multi-Carrier (Verizon, AT&T, and Sprint) 700/850/1700(AWS)/1900 MHz; 2G/3G GSM fall back to 850/900/1700AWS/1800/1900/2100 MHz; 2G/3G CDMA fall back to 800/1900 MHz; Transfer rate (max): 50 Mbps up, 100 Mbps down
LTE – North America (L6) 700/850/1700(AWS)/1900 MHz; 2G/3G fall back to 850/1900 MHz; Transfer rate (max): 50 Mbps up, 100 Mbps down
LTE – Verizon (L8) 700/1700(AWS) MHz; No 2G/3G fall back; Transfer rate (max): 50 Mbps up, 100 Mbps down
HSPA+ (U9) 850/900/1700 (AWS)/1900/2100 MHz; Transfer rate (max): 5.76 Mbps up, 21 Mbps down
CDMA EV-DO (Dx)* 450 MHz; EV-DO Rev B; R-UIM support; Transfer rate (max): 14.7 Mbps up; 5.4 Mbps down
CDMA 1xRTT (Bx) 800/1900 MHz; Transfer rate (max): 153 Kbps up/down
GSM-R (R5)* 900/1800/1900 MHz (TRM-5); GPRS Class 10; Transfer rate (max): 42.8 Kbps up, 85.6 Kbps down
Connectors Ux, Lx variants: 2 x 50 ? SMA (Center pin: female); E1, Dx, Bx variants: 1 x 50 ? SMA (Center pin: female)
SIM Slots 2, Mini-SIM (2FF)
SIM Security Optional SIM slot cover plate
Channels 12 channel, continuous tracking
Sensitivity Tracking1: -161 dBm; Acquisition2 (Assisted, non-LTE): -158 dBm; Acquisition (Assisted, LTE): -153 dBm; Acquisition (Standalone): -145 dBm
Protocol NMEA 0183 V3.0
Cold Start < 0.2 m/s
Horizontal Accuracy < 2 m (50%); < 5 m (90%)
Velocity Accuracy < 0.2 m/s
Additional Features Send GPS via UDP/IP, TCP/IP (up to two destinations) or serial; Customize and/or send data using Python; GPS status query; Time source capable
Wired Interfaces
Ports 1
Standard Option of RS-232 or RS-232/422/485
Async/Sync Async
Signal Support TXD, RXD, RTS, CTS, DTR, DCD, DSR, RI
Flow Control Software (XON/XOFF), Hardware supported
COM Port Redirector RealPort®
Connector DB-9
Ports 2
Standard IEEE 802.3
Physical Layer 10/100 Base-T
Data Rate 10/100 Mbit/s
Mode Full or Half duplex
Interface Auto MDI/MDIX
Connector RJ-45
Ports 1
Standard USB 2.0
Signaling High-speed
Connector Type A
Remote Management Digi Remote Manager (cloud based); SNMP v1/v2c/v3 (user installed/managed)
Local Management Web interface (HTTP/HTTPS); CLI (Telnet, SSH, SMS, Serial Port)
Management/ Troubleshooting Tools FTP, SFTP, SCP; Protocol analyzer with PCAP for Wireshark; Event logging with Syslog and SMTP; NTP/SNTP
Memory 128 MB NAND Flash/128 MB DDR2 SDRAM
Input 9-30 VDC
Consumption 6W max, 4W typical
Connector Depending on model: Locking barrel or screw-down removeable terminal block
DC Power Cord* Locking barrel to bare wire
DC Power Supply* 100-240 VAC 50/60 Hz; Option of standard temperature or
extended temperature
Dimensions (L x W x H) 3.9 in x 5.2 in x 1.3 in (100 mm x 131 mm x 32 mm)
Weight 1.08 lb (0.49 kg)
Status LEDs Power, Service, WWAN, 3x Signal strength
Enclosure Material/Rating Industrial (Metal)/ IP50
Mounting Brackets for wall mount & DIN rail sold separately
Operating Temperature *** -35° C to +70° C
Storage Temperature -40° C to +85° C
Relative Humidity 0% to 95% (non-condensing) @ 25° C
Ethernet Isolation 1.5 kV RMS
Serial Port Protection (ESD) 15 kV
Hazardous (Class 1 Div 2) Optional
Cellular Carriers Certified by most major carriers.
Safety UL 60950, CSA 22.2 No. 60950, EN60950
Emissions/Immunity CE, FCC Part 15 Class B, AS/NZS CISPR 22, EN55024, EN55022 Class B
Product Warranty 5 years
Enterprise Software
Protocol Support HTTP, HTTPS, FTP, SFTP, SSL, SMTP, SNMP (v1/v2c/v3), SSH, Telnet and CLI for web management; remote management via Digi Remote Manager; SMS management, protocol analyzer, ability to capture PCAP for use with Wireshark; DynDNS; Dynamic DNS client compatible with BIND9/No-IP/DynDNS
Security/VPN Stateful inspection firewall with scripting, address and port translation; VPN: IPSec with IKEv1, IKEv2, NAT Traversal; SSL, SSLv2, SSLv3, FIPS 197, Open VPN client and server; PPTP, L2TP; VPN Tunnels included: 5; Maximum VPN Tunnels available: 5; Cryptology: SHA-1, MD5, RSA; Encryption: DES, 3DES and AES up to 256-bit (CBC mode for IPsec); Authentication: RADIUS, TACACS+, SCEP for X.509 certificates; Content Filtering (via 3rd party); MAC Address Filtering; VLAN support; Ethernet Port Isolation
Routing/Failover IP pass-through; NAT, NAPT with IP Port Forwarding; Ethernet Bridging; GRE; Multicast Routing; Routing Protocols: PPP, PPPoE, RIP (v1, v2) OSPF, SRI, BGP, iGMP routing (multicast); IPv6 (firmware upgradable); RSTP (Rapid Spanning Tree Protocol); IP Failover: VRRP, VRRP+TM; Automatic failover/failback to second GSM network/Standby APN; Verizon NEMO/DMNR for Primary Wireless Access
Other Protocols DHCP; Dynamic DNS client compatible with BIND9/No-IP/DynDNS; QoS via TOS/DSCP/WRED
Specialty/Legacy Protocols RealPort®; Modbus UDP/TCP to serial; X.25 including XOT, SNA/IP, TPAD and PAD; Protocol switch*

Digi TransPort WR21 is a full-featured cellular router offering the flexibility to scale from basic connectivity applications to enterprise class routing and security solutions. With its highperformance architecture, Digi TransPort WR21 provides primary and backup connectivity and is designed for Wide Area Network connectivity including 2.5G/3G/4G networks and beyond. Optional Gobi™ module provides true HSPA+/EV-DO carrier diversity in a single solution.

Flexible power and connectivity options, along with extended temperature ranges make Digi TransPort WR21 a versatile product for both commercial and industrial environments.

Digi TransPort WR21 is available in both standard routing and enterprise configurations. The standard version offers basic routing, NAT and security, while the enterprise version adds advanced routing, security/VPN and stateful firewall. Advanced features allow the Digi TransPort WR21 to be used as a component of a PCI compliant network.

Have Questions? Call +603 7887 6820 or email sales@anewtech.com.my