Details such as call setup, signalling protocols, and measurement results can be recorded for later analysis. Figures 2 through 6 provide examples of the type of information available when operating in the data logging mode. For instance, the CrafTek might be used to monitor a line over an extended period, recording time-stamped events such as synchronization loss or data transmission errors. A problem call could be documented from call setup to teardown to trace CPE or switch-related trouble, in the absence of more complex protocol analyzers. Or the technician may simply use the data logging mode to record results of the service verification procedures when on-site.
Data logging filters allow the user to specify the type of data to be recorded.
A list of the filters are included in Table 1, and any or all of the filters can be selected simultaneously. Easy Installation and Setup. The RS-232 interface board is installed in a separate option slot inside of the CrafTek, and is accessed via the existing Auxiliary port on the base of the instrument. Hardware kits are available for easy field upgrading of existing instruments. A setup menu allows specifying various RS-232 parameters, such as baud rate, number of bits, type of flow control, and device type.