Line supervision on e1 failure, Daisy-chaining to mmi, Mmi master or slave – Nortel Networks 1000 User Manual

Page 269: Table 101 "lei card - switch 1 dip switch settings

Installation and Configuration

269

Line supervision on E1 failure

This setting determines in what state all 30 LEI ports appear to the CS
1000E, CS 1000M, and Meridian 1in case of E1 failure. Ports can appear
as either in the "on-hook" or "off-hook" states on E1 failure.

Note:

All idle LEI lines go off-hook and seize a Digitone Receiver when

the off-hook line processing is invoked on E1 failure. This may prevent
DID trunks from receiving incoming calls until the LEI lines time-out
and release the DTRs.

Daisy-Chaining to MMI

If two or more LEIs are installed and the MMI used, daisy-chain the cards
together to use one MMI terminal or modem. Make the selection for this
dip switch position based on how many LEIs are being installed.

MMI Master or Slave

This setting is used only if daisy-chaining the cards to the MMI terminal or
modem. It determines whether this card is a master or a slave in the daisy
chain. Select the master setting if there are no LEIs between this card and
the MMI terminal or modem. Select the slave setting if there are other
cards in the daisy chain between this card and the MMI.

Table 101 "LEI card - Switch 1 dip switch settings" (page 269)

through

Table 103 "LEI card - XPEC address dip switch settings (Switch S1,
positions 3-6)" (page 270)

show the dip switch settings for Switch 1.

Table

104 "LEI card - E1 Switch 2 (S2) dip switch settings" (page 271)

shows

the dip switch settings for Switch 2.

Table 101
LEI card - Switch 1 dip switch settings

Characteristic

Selection

Switch