Model Description
H3C AR 18-21A
1 x 10/100 Mbps Ethernet port
4 x 10/100 Mbps Layer 2 Ethernet ports
1 ADSL2+ over POTS port
1 Console port
H3C AR 18-21B
1 x 10/100 Mbps Ethernet port
4 x 10/100 Mbps Layer 2 Ethernet ports
1 ADSL2+ over ISDN port
1 Console port
2 Connection
Figure 1
The AR 18-3XE/18-21X Series Routers connection diagram
2
