Multiprotocol Packet Switch

RAD's SPS-4 multiprotocol packet switch enables multiprotocol connections between the enterprise headquarters and remote branches. The unit allows the X.25 and Frame Relay protocols to run over an IP backbone. Each of the unit’s three links can be independently configured. The unit includes an Asynchronous backup channel for GPRS packet streams and two optional 10/100BaseT interfaces. The SPS-4 multiprotocol packet switch includes features such as transparent bridging, dynamic bandwidth allocation, data prioritization, and automatic backup facilities.

• Multiple protocols in one device saves equipment costs and simplifies network management

• Cost effective way to enable users to run legacy X.25/Frame Relay equipment over E1/T1, xDSL and packet-switched access networks

The SPS-4 is a flexible, compact Frame Relay/X.25 switch. The device provides multiprotocol connectivity for transporting data from existing X.25 and Frame Relay equipment over newer networks based on xDSL, E1/T1 and IP packet switching. SPS-4 provides up to three sync/async links that can be independently configured to one of several protocols: Frame Relay, X.25, ISDN, RIP, RIP-2, PPP, MLPPP, HDLC, SLIP, or async.

SPS-4 performs packet switching between different applications: X.25 to X.25; X.25 to Frame Relay; Frame Relay to Frame Relay; and SLIP to SLIP. It can also encapsulate various protocols over Frame Relay and X.25. These features make the product ideal for banks, hospitals, universities or other organizations, which have a large installed base of legacy equipment that needs to be connected over more modern networks.

SPS-4’s single RS-232/V.24 asynchronous data port can support GPRS packet streams so that it can be utilized as a radio backup link for critical link applications. Switching to the backup link occurs automatically upon detection of main link failure. After the network recovery, the SPS-4 automatically synchronizes itself and returns transmission to the main facility link.

 

The synchronous data links on the SPS-4 can be ordered with V.24/RS-232, V.35, RS-530, X.21, V.36 interface with DCE or DTE settings, or with ISDN S or U interface options. This provides connectivity for any device with a standard network interface. For added flexibility, the synchronous links can also be configured for asynchronous operation.

 

The built-in management agent enables configuration, compilation of statistics and status reports, and diagnostics. The management agent can be accessed from any location in the network. It can be programmed to transmit this information as the result of an alarm event.

 

Advanced FCAPS (Fault, Configuration, Accounting, Performance, Security) and diagnostic tools are provided by RADview-EMS, RAD's carrier-class element management system, via a Web browser. 

 

The standalone SPS-4 is a compact, 1U-high half 19-inch wide unit.