Why Choose a Wired AND Wireless Router?
Sarian’s combination routers offer advanced connectivity to PSTN, ISDN and ADSL networks with automatic failover to GSM technology should the landline fail.  Wired networks are reliable most of the time however, when they do fail, the down times are usually unknown and the impact on your organisation is often costly. 

Cost Effective Reliability
With this in mind, Sarian designed its combination routers to offer the choice of GPRS, EDGE, 3G, HSDPA and HSUPA networks as seamless back up to WAN connections in the event of a network failure.  The beauty of these products is being able to choose either the wired or wireless network as the primary network, depending on your particular application or budget.

Double Failsafe Backup
All of these routers come with dual SIM card ports as standard which gives you the option of choosing two completely different wireless networks in addition to the LAN network.  This feature is unique to this range and offers ultimate piece of mind.

Optimised Signal Strength
Because signal strength is equally important to reliability, every combination Sarian is compatible with external antennas which optimise your network connectivity.

These routers are ideal solution for cost effective mission critical applications where communications simply must not fail.

The ER4420p offers high speed wireless performance thanks to EDGE technology with the failsafe backup of PSTN to support. With 2 serial ports and 4 Ethernet as standard the IR4420 offers vast flexibility.

Ethernet Ports: 4
Serial Ports (Sync/Asynchronous): 2
Std / Max VPN Tunnels: 5/50

The ER4420i offers the same superb EDGE performance as the ER4420p but with ISDN failsafe backup for mission critical applications. With Dual SIM ports as standard the ER4420i also has the option of a second wireless backup network.

Ethernet Ports: 4
Serial Ports (Sync/Asynchronous): 2
Std / Max VPN Tunnels: 5/50

The HR4420 with PSTN offers ultra high speed HSDPA compatitbility with an integrated PSTN modem for customers who need a high speed solution with a reliable wired backup. The HR4420 is also available with the latest HSUPA module for high speed uplink applications. With Dual SIM ports as standard the HR4420 also has the option of a second wireless backup network.

Ethernet Ports: 4
Serial Ports (Sync/Asynchronous): 2
Std / Max VPN Tunnels: 5/50

The HR4420 with ISDN offers ultra high speed HSDPA compatitbility with an integrated ISDN modem for customers who need a high speed solution compatible with their existing ISDN line. The HR4420 is also available with the latest HSUPA module for high speed uplink applications. With Dual SIM ports as standard the HR4420 also has the option of a second wireless backup network.

Ethernet Ports: 4
Serial Ports (Sync/Asynchronous): 2
Std / Max VPN Tunnels: 5/50

The DR6000 Series offers the very latest ADSL2 / ADSL2+ compatibility supporting theoretical download speeds of up to 50Mbit/s. The DR6000 also support modular add-on backup networks including (PSTN or ISDN) wired networks and/or (EDGE or HSDPA / HSUPA) wireless networks. Three model variants are also available providing 1 DR6410, 2 DR6420, or 6 DR6460 (Async Only) serial ports.

Ethernet Ports: 4
Std / Max VPN Tunnels: 20/200