Table of Contents
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Interface
Mode
Serial Interface
Ports
Connector
Baud Rate
Software
Network Protocols
VPN Tunnel
Access Authentication
Firewall
Management
AAA
Multilevel Authority
Reliability
Serial Port
Power Supply and Consumption
Connector
Input Voltage
Power Consumption
Physical Characteristics
Ingress Protection
Housing & Weight
Dimensions
Mounting
Others
Reset Button
LED Indicators
Built-in
Certifications
Auto MDI/MDIX
Full or half duplex (auto-sensing)
1 × RS232 or 1 × RS485
DB9 Female
300bps to 230400bps
PPP, PPPoE, SNMP v1/v2c/v3, TCP, UDP, DHCP, RIPv1/v2, OSPF,
DDNS, VRRP, HTTP, HTTPS, DNS, ARP, QoS, SNTP, Telnet, VLAN,
SSH, etc.
IPsec/OpenVPN/PPTP/L2TP/GRE/DMVPN
CHAP/PAP/MS-CHAP/MS-CHAPV2
ACL/DMZ/Port Mapping/MAC Binding
Web, CLI, SMS, On-demand dial up
Radius, Tacacs+, LDAP, Local Authentication
Multiple levels of user authority
VRRP, Dual SIM Backup
Transparent (TCP Client/Server, UDP), Modbus Gateway
(Modbus RTU to Modbus TCP)
2-pin with 5.08 mm terminal block
9-48 VDC
Typical 1.3 W, Max 2.8 W (In Non-PoE mode)
IP30
Metal, 365 g (0.80 lb)
100 x 96.1 x 30 mm (3.94 x 3.78 x 1.18 in)
Desktop, wall or DIN rail mounting
1 × RESET
1 × POWER, 1 × STATUS, 1 × VPN,
1 × SIM1, 1 × SIM2, 3 × Signal strength
Watchdog, RTC, Timer
RoHS, CE, FCC
UR51 User Guide
11
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