Dip switch settings, Mmi port speed selection, Line supervisory signaling protocol – Nortel Networks 1000 User Manual
Page 267: Address of lei to the mmi, E1 framing
Installation and Configuration
267
Dip switch settings
Begin the installation and configuration of the LEI by selecting the proper
dip switch settings for the environment. The LEI contains two dip switches,
each containing eight switch positions. They are located in the upper right
corner of the motherboard circuit card as shown in
- E1 protocol dip switch locations" (page 268)
. The settings for these
switches are shown in
Table 101 "LEI card - Switch 1 dip switch settings"
through
Table 104 "LEI card - E1 Switch 2 (S2) dip switch
When the LEI card is oriented as shown in
protocol dip switch locations" (page 268)
, the dip switches are ON when
they are up, and OFF when they are down. The dip switch settings
configure the card for the following parameters:
MMI port speed selection
This dip switch setting selects the appropriate baud rate for the terminal or
modem (if any) that is connected to the MMI.
Line Supervisory Signaling protocol
The LEI is capable of supporting loop start or ground start call processing
modes. Make the selection for this dip switch position based on what type
of line signaling the Customer Premise Equipment (CPE) supports.
Address of LEI to the MMI
The address of the LEI to the MMI is made up of two components:
•
the address of the card within the shelf
•
the address of the shelf in which the card resides
These two addresses are combined to create a unique address for the
card. The MMI reads the address of the card within the shelf from the card
firmware; the address of the shelf must be set by this dip switch.
The shelf address dip switch can be from 0 to 15, 16 being the maximum
number of lineside E1 IPE shelves (a maximum of 64 LEI cards) capable
of daisy chaining to a single MMI terminal. For ease, it is recommended
that this address be set the same as the address of the peripheral
controller identifier in LD 97 for type: XPE. This is not possible because
the dip switch is limited to 16; however, this is not mandatory.
E1 framing
The LEI is capable of interfacing with LTU equipment either in CRC-4 or
FAS only framing mode. Make the selection for this dip switch position
based on what type of framing the LTU equipment supports.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
02.06
Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.