Patton's 2-Wire Baseband Modem Takes on RAD Counterpart
In the May 17, 1996 issue of Friday Facts we compared the new Patton Model 1090 4-Wire baseband modem with its closest RAD rivals: the ASM-20 and ASM-24. While we found the performance of the RAD units to be comparable in many areas, the Patton Model 1090 had several unique featurest that gave it the clear advantage in flexibility, convenience and cost. As we compare the Patton Model 1092 2-wire baseband modem to its RAD counterpart, the Model ASM-31, we see a similar scenario unfolding. Let's take a look at these two units and see how they stack up.
When the Model 1092 and ASM-31 are compared on the performance characteristics, thy are almost identical. Both operate full duplex over a single twisted pair, at distances up to 5 miles(24 AWG, all rates). Both units use 2B1Q encoding, which allows operation over the leased lines of many carriers. Local and remote loopbacks, as well as BERT pattern generatior, are standard on both models. Slight advantages of the ASM-31 appear to be higher async data rates (not the primary use for this type of product), and lower sync data rates. Both models have a maximum synchronous data rate of 128 kbps.
Patton Takes the Lead
Compared on the basis of flexibility, convenience and cost, the Model 1092clearly pulls ahead of the ASM-31. The Model 1092's external configuration switches and control port provide two methods of configuration (hardware and software). The control port may also be used for test initiation, adding this method to the two (front panel switches and DTE) also offered by the ASM-31. More significantly, the Model 1092 uses interchangeable QuickConnect TM interface modules, allowing a single unit to be re-fitted in the field with all five interface options. This feature greatly increases the lifetime value of the Model 1092.