Net-Log FAQ Question : I'm confused about Net-Log licensing, can you explain how it works. Answer : The license determines how many data streams any one Net-Log can simultaneously deliver, currently either 2 or 5 streams. It does not relate to the maximum number of simultaneously connected users. There are two functions on Net-Log that require the use of a data stream - Archive and Play. When a user attempts to logon, the target Net-log assesses whether that user has access to functions that require a data stream. If they do, the Net-Log then determines whether sufficient unused licenses are available, and allows or rejects the logon attempt accordingly. For example - On a Net-Log with a 2 stream license Admin has Archive and Play control access User 1 has been given Play control access Admin attempts to logon - The Net-Log determines that Admin requires 2 licenses, 1 for Archive and 1 for Play. As the Net-Log has a 2 stream license and no other users are logged on, this login attempt is successful. User1 then tries to logon - The Net-Log determines that User1 requires 1 license for Play. Both licenses are currently being used by Admin so this login attempt fails and User1 is informed that there are insufficient licenses. Now using the same 2 stream licensed Net-Log Admin has Archive control access User 1 has been given Play control access User 2 has been given Play control access User 3 has been given Record control access Admin attempts to logon - The Net-Log determines that Admin requires 1 license for Archive. As the Net-Log has a 2 stream license and no other users are logged on, this login attempt is successful. User1 then tries to logon - The Net-Log determines that User1 requires 1 license for Play. As Admin is the only currently connected user, there is still 1 license available so this login attempt is also successful. User2 then tries to logon - The Net-Log determines that User2 requires 1 license for Play. Both licenses are currently being used by Admin and User1 so this login attempt fails and User2 is informed that there are insufficient licenses. User3 then tries to logon - The Net-Log determines that User3 does not have access to function that require a data stream so this login attempt is also successful. As explained earlier, each Net-Log requires either a 2 stream or a 5 stream license. This can be implemented in several ways: Option 1 is a master license - the customer receives a unique code enabling the Net-Log with either a 2 or 5 stream license. Option 2 is a slave license and only applies to customers with more than one Net-Log. The slave option requires the customer to enter the IP Address of the Net-Log with the master license. The Net-Logs with the slave license option will be configured to have the same number of licenses as the master. Option 3 is a demo license for 2 streams and is time limited. It should not be used for normal operation of the Net-Log. Question : How many Net-Logs can be attached to a single network? Answer : This depends on the number of TCP/IP addresses you have available. If you are using the RJ45 socket on the Net-Log and CAT5 network cabling, you may be limited by the number of free ports on your network hubs or switches. Check with your network administrator. Question : Is the TCP/IP adress fixed or user selectable? Answer : The TCP/IP address of the Net-Log unit is user selectable. The address is changed using either the Net-Util serial utility (recommended for first-time set-up), or through the 'Administrator' menu within Net-Log-Win. Question : How many people can be connected at the same time? Answer : The maximum number of users that can connect to a Net-Log unit and use either the 'play control' or 'archive' functions is limited by the number of stream licenses purchased. However, for users that have no such function rights (i.e they only have access to non-streaming functions) the maximum number of connections to Net-Log is limited to 50. Question : Is the Archive process real time or faster? Answer : The speed of the Archive process is dependant on the network bandwidth, the load upon the Net-Log unit, the processing speed and disk access times available on the receiving PC/server. For a set-up using 10/100Mb/s networking and a high spsecification PC/server, the archiving process is often around twice as fast as real time. Question : How can one retrieve audio from an archived file? Answer : Archived audio material can be retrieved using the 'Play File' function of Net-Log-Win, assuming the user has access rights to the network share where the archives reside. Question : Apparently, archiving is an automated process. Am I right? Answer : The archiving process of Net-Log-Win automatically selects as-yet un-saved material on the Net-Log unit for archiving on a remote PC/server. For this process to take place, a copy of Net-Log-Win must be running on a PC/server and must be logged-in to the Net-Log unit as a user with 'Archive Control' rights. For a fully automated archive process with the capacity to archive from multiple Net-Logs simultaneously - use the Net-Log Auto-Archive utility supplied. Question : Where do we set-up a Net-Log unit name (like 'netlog unit 2' in the handbook)? Answer : The names given to Net-Log units are defined using the 'Net-Log Device Editor' screen in Net-Log-Win. These names are not critical to the operation of Net-Log and are present just as a useful way to describe the use of the Net-Log, and as such can be defined differently from PC to PC. Question : Is a license compulsory for a "guest"? Answer : A license is required if the user has rights to a streaming function such as Play or Archive. Question : Does the file download and archiving process use FTP? Answer : No. The audio data passes from the Net-Log unit to Net-Log-Win (or the Net-Log Auto-Archive utility) and is then written to a disk just as a normal file is done. Question : Is there a UNIX version of Net-Log-Win available? Answer : No. Net-Log-Win can only be used in a MS-Windows environment. Question : What versions of MS-Windows has the Net-Log software been tested with? Answer : Net-Log-Win, Net-Util and Net-Log Auto-Archive have been tested with MS-Windows 98/ME/NT/2000. Question : If the power is restored will Net-Log carry on recording automatically? Answer : Yes. Net-Log will continue to record when the power is restored. A new cut will be generated with a new start-time. Question : If the mains power is interrupted whilst the Net-Log is recording, what happens and will the entire recording be lost? Answer : When the Net-Log is recording, it periodically writes the information relating to the current recording to the internal hard drive. This ensures that if mains power is lost, only a small amount of audio data is lost. The maximum data loss is related to the selected bit rate, and is outlined in the table below. When the mains power is re-applied, the Net-Log will automatically re-start recording a new cut on the channels that were recording when the power was lost. Bit rate (kbps) Maximum data lost (secs) 64 160 80 128 96 107 112 92 128 80 144 72 160 64 192 54 224 46 256 40 320 32 384 27