H - Electricity – 04 – M
Patent
H - Electricity
04
M
H04M 7/06 (2006.01) H04L 1/20 (2006.01) H04L 1/24 (2006.01) H04M 7/12 (2006.01)
Patent
CA 2235900
A test of digital communications facilities identifies facilities that have AMI/B8ZS line coding mismatches. A test apparatus and method transmits a test tone signal simultaneously on contiguous channels over a trunk to produce a series of consecutive zeros which span the two channels to invoke the B8ZS code. The test apparatus method then compares the sent signal to the received signal to determine whether the received signal deviates from predetermined thresholds. If so, then the currently analyzed channel suffers an AMI/B8ZS mismatch.
Un essai d'installations de communications numériques identifie des installations présentant des discordances de codage de ligne AMI/B8ZS. Un dispositif et une méthode d'essai transmettent une tonalité d'essai simultanément sur des canaux contigus au moyen d'une liaison afin de produire une série de zéros consécutifs s'étendant à l'ensemble des deux canaux et d'invoquer ainsi le code B8ZS. Puis, ils comparent le signal envoyé au signal reçu afin de déterminer si le signal reçu s'écarte des seuils prédéterminés. Si c'est le cas, alors le canal en cours d'analyse présente une discordance AMI/B8ZS.
Katuszonek Mark A.
Mci Communications Corporation
Oyen Wiggs Green & Mutala Llp
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