Intelligent miniature Ethernet to E1/T1 remote bridge, E1 port
Intelligent miniature Ethernet to E1/T1 remote bridge, E3 port
Intelligent miniature Ethernet to E1/T1 remote bridge, T1 port
Intelligent miniature Ethernet to E1/T1 remote bridge, T3 port
multilink point-to-point protocol
point-to-point protocol
