Model
Description
Form Factor
Feature Set
Routing & Protocols
IP Connectivity Features
QoS
VPN/Security
Key Features
2603
Low-Cost Single Port
T1/E1 Access Router
2620
Low-Cost T1/E1 Access
Router with Drop & Insert
2635
WAN Router V.35
2621
WAN Router X.21
2701/I & 2720/I
Ethernet-over-T1/E1
WAN Bridge
2135
V.35 Micro Bridge
2121
X.21 Micro Bridge
2124
V.23 (RS-232)
Micro Bridge
Desktop
Micro Unit
Basic Internet Access/Delivery Feature Set
RIP V1 and V2, Frame Relay, Inverse ARP, PPP with BCP or IPCP, PPPoE
PPP Bridging Feature Set
PPP/BCP
NAT/NAPT, DHCP server and relay, DNS relay, SNTP client, PPPoE
–
–
DoS Detection/Protection. Intrusion detection, blacklisting with automated
configurable actions, packet filtering firewall, access list.
• Lowest Cost Internet Access Router in the Market
• Integrated WAN interfaces
• Full Featured IP Router
• Transparent LAN Bridging
• Standard PPP Bridge Control Protocol
• Auto Learning and Aging Supports 4096 MAC Address
–
–
Public Access
Private Access
Edge
Product Line
Ethernet
Ports
Integrated WAN
Interfaces
Model
Description
Pg
1
4
1
1
1
1
1
1
1
1 or 4-port switch
2
2
2
2 Gigabit Ethernet
2 Gigabit Ethernet
Up to 11
1 T1/E1
2 T1/E1
1 E1
1 T1
V.35
X.21
V.35
X.21
V.24 (RS-232)
1 Ethernet
1 T1/E1
V.35
X.21
2/4 T1/E1 Inverse Multiplexer
2/4 T1/E1
Up to 128 T1/E1 Ports
2603
2620
2701/I
2720/I
2635
2621
2135
2121
2124
2802/2805
2803
2835
2821
2888
2884
6400
Low-Cost Single Port T1/E1 Access Router
Low-Cost Dual-Port T1/E1 Access Router
Low-Cost Single E1 Access Bridge
Low-Cost Single T1 Access Bridge
WAN Router V.35
WAN Router X.21
V.35 Micro Bridge
X.21 Micro Bridge
V.24/RS-232 Micro Bridge
SOHO/Enterprise Secure VPN Router Appliance
Integrated T1/E1 VPN WAN Access Device
Integrated V.35 VPN WAN Access Device
Integrated X.21 VPN WAN Access Device
T1/E1 Multi-Megabit Edge Router
T1/E1 Channelized Gigabit Edge Router
Modular T1/E1 Edge Router
48
52
62
100
49
49
64
64
64
46
50
51
51
54
53
55
