Metrodata Limited

The method of connecting a Serial Encrypter to a Leased Line depends on one factor - the data rate. Metrodata can provide you with products that operate at fixed rates such as Nx64k, E1, T1, E2, E3, DS-3 and OC-3 and provide Serial Conversion to G.703/COAX/BNC or Fiber. We can also provide a solution to work at flexible or "odd" data rates such 9.123Mbps or 266.67Kbits to G.703 or Fiber. Typically the fixed data rate conversion can be done using Products from our Global Connectivity Range - DSU's, Interface Converters, etc. Flexible Data Rates or non fixed rates would be done using the AP3000. Examples of Fixed Rates Converters Include the following:

Despite the fixed rate implementation of G.703 Satellite Modems, there are still numerous applications that exist for them. The most common application Metrodata see is for G.703 to HSSI Conversion, where the Client wants to connect the G.703 Satellite Modem to a HSSI Router Port. One of the reasons for this is that typically HSSI is cheaper to use on a Router than G.703. Also HSSI is flexible, and so can support a variety of speeds. There are plenty of ways of interfacing G.703 to HSSI. Here's a few

• G.703 Satellite Modem At Fixed Rate 44.736Mbps To HSSI Router - [DC3445] [FM4950]
• G.703 Satellite Modem At Fixed Rate 34.368Mbps To HSSI Router - [DC3445] [FM4900]
• G.703 Satellite Modem At Fixed Rate 8.448Mbps To HSSI Router - [FM4850]
• Asymmetric G.703 Satellite Modems to HSSI Router - Typically 34.368Mbps and 8.448Mbps - [FM4900 & FM4850]
• G.703 Satellite Modem At Nx64k to X.21 or V.35 Router - [FM4000]
• G.703 Satellite Modem At 2.048Mbps to X.21 Router - [DC1000]

Another area where G.703 Fixed Rate interfaces are widely used is that of ATM Switches. You might have an E2 8.448Mbps Satellite Link, and need to connect it into an ATM Switch. There are very few [if any] ATM Switches other than the Metrodata Access Processor that supports E2. Metrodata developed a product for Stratacom, to allow the connection of their DS-3 ATM Module, to an E2 G.703 Satellite Link. We can also convert to E3 and OC-3 ATM.