R96-176 ACCEPTING PROPOSAL - Laserfiche WebLink

Home Browse Search

, .' . City of Decatur Mobile Data System Acceptance Test Plan acknowledgment(ACK)will indicate a successful up-link communication.If the ACK is not received by the terminal,the mobile data device prompts "delivery failed."More than two ' "no acknowledgments"of transmissions will constitute an up-link failure of the test point. Ten down-link test transmissions will be performed after the up-link test transmissions.Up- -link m link failures do not constitute down-link failures.If more than two down essa es do � g not re�eive acknowledgments,the site is deemed to have a down-link failure. T'he coverage criteria of 95%allows up to 5%of the sites to have up-link failures and 5%of the sites to have down-link failures.Since up-link and down-link messages do not occur simultaneously at precisely the same location,up-link and down-link message transmission successes and failures will be summed separately to determine the results of the test. If the up-link failures represent less than 5% of the valid up-link test point locations and the down- link failures represent less than 5%of the valid down-link test point locations,the test will be deemed passed and completed. If more than 5%of the test locations have either the up-link or down-link test failures, secondary coverage testing will be performed to determine the extent of the problem. Alternatively,the City may deem the test passed and complete if it is felt that there is no real problem and the radio coverage is acceptable.If the secondary testing is required (i.e.,more than 5%of the sites have failures),it will be performed after the completion of the primary coverage test. The secondary coverage test will determine the size of each of the identified problem areas. If the sum of all of the problem areas identified by the secondary coverage test is less than 5%of the total area covered,the Radio Coverage Acceptance Test will be deemed passed. Test Message Description The inbound test message will be 43 characters in length.The outbound test message will be 300 characters in length.This is to reflect a test message that is typical of the average message. When the down-link message is received by the mobile data device,it will be directed to the mobile data device's page buffer. The message can be viewed on the screen so it can verify • that the down-link message was received. At the test host,an ACK is the positive indication that the message was delivered to the mobile data device. These ACKs and up-link messages are viewed on the test host simulator console. �T/�/O° 6