Paradyne COMSPHERE 6800 Series Communications Products Support Configuration Manual

Also see for COMSPHERE 6800 Series: Release note Release note Release note Installation and Enabling/Disabling Instructions Multiplexer Management and Configuration Guide

Paradyne COMSPHERE 6800 Series Communications Products Support Configuration Manual Manual pdf 16 page image

Managing Modems and DSUs1-76800-A2-GB20-20 January 1997Poll-Only Tributary FeatureThe Poll-Only Tributary feature is a 4400 Series Analog Private Line (APL) modem configured asa tributary modem and used for diagnostic polling expansion (i.e., it is used to expand pollingcapabilities on the network). It may be identified as Model 4434-02 or Model 4444-02 APLmodem.The Poll-Only Tributary can poll an additional 256 devices on its DC poll list. These polleddevices may be any device that supports Paradyne’s Advanced Diagnostic protocol (ADp). Formore information on the Poll-Only Tributary feature refer to the COMSPHERE 6800 SeriesNetwork Management System Installation and Maintenance Guide.Protocol ModesNMS manages devices by communicating in one of two protocols, depending on the configurationof each individual diagnostic tree. A diagnostic tree consists of the head control device and alldownstream devices connected to it diagnostically. Each control device on the control channel,along with all its downstream devices, represents one diagnostic network. The protocol used by adiagnostic network is determined by the types of devices on the network. If all devices areCOMSPHERE devices, ADp protocol may be used. If any device is a DATAPHONE II type, theDATAPHONE II protocol must be used. Different diagnostic networks on the same controlchannel may operate in different protocols. When COMSPHERE devices are in DATAPHONE IImode, some commands and functions operate differently than when the devices are in ADp mode.The 6800 Series NMS allows you to monitor circuits and equipment in real time, to invokediagnostic tests, to set thresholds for alert reporting and speed changes, and to design your ownapplications for the general purpose external leads.The 6800 Series NMS diagnostic system extends outward from the local control modems totributary modems and beyond to downstream links. This diagnostic system transports networkcontrol, monitoring, and testing information between devices, and between these devices and theNMS. Several channels are used to pass the diagnostic information. These channels are describedas follows:Control Channel (CC)NMS uses the control channel to communicate with control devices that are located at thehead of the network tree.Secondary Channel (SC)Most devices incorporate a secondary channel that sends diagnostic information over thetransmission line used by the primary data system. This channel connects a controlmodem with its downstream tributary modems.Diagnostic Channel (DC)Hardware connections between co-located devices in an extended network. Thediagnostic channel connects tributary modems to extended control modems or to othertributary modems.The diagnostic system is divided into two diagnostic network types according to the device family(DATAPHONE II and/or COMSPHERE) represented in the network.