NT5D33 and NT5D34 Lineside E1 Interface cards Page 267 of 906Circuit Card Description and InstallationLine supervision on E1 failureThis setting determines in what state all 30 LEI ports will appear to theCS 1000S, CS 1000M, and Meridian 1 in case of E1 failure. Ports can appearas either in the “on-hook” or “off-hook” states on E1 failure.Note: All idle LEI lines will go off-hook and seize a Digitone Receiverwhen the off-hook line processing is invoked on E1 failure. This mayprevent DID trunks from receiving incoming calls until the LEI linestime-out and release the DTRs.Daisy-Chaining to MMIIf two or more LEIs will be installed and the MMI used, daisy-chain the cardstogether to use one MMI terminal or modem. Make the selection for this dipswitch position based on how many LEIs are being installed.MMI Master or SlaveThis setting is used only if daisy-chaining the cards to the MMI terminal ormodem. It determines whether this card is a master or a slave in the daisychain. Select the master setting if there are no LEIs between this card and theMMI terminal or modem. Select the slave setting if there are other cards inthe daisy chain between this card and the MMI.Tables 96 through 98 show the dip switch settings for Switch #1. Table 99 onpage 270 shows the dip switch settings for Switch #2.Table 96LEI card – Switch #1 dip switch settings (Part 1 of 2)Characteristic SelectionSwitchPositionSwitchSettingFactoryDefaultMMI port speed selection 1200 baud2400 baud11ONOFFOFFE1 signaling Ground startLoop start22ONOFFOFF
