Nortel Networks 1000 - Manual (Page 181)

Installation and configuration 181
When the line-side T1 card is oriented as shown in Figure 31 "Lineside
T1 card - T1 protocol dip switch locations" (page 182) , 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
As described in “Power requirements” (page 317) , the Lineside T1 card 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 CPE equipment supports.
Address of Lineside T1 card to the MMI
The address of the Lineside T1 card 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; however the address of the shelf must be set by this dip switch.
The shelf address dip switch can be from 0 – 15. 16 is the maximum
number of Lineside T1 IPE shelves (a maximum of 64 Lineside T1
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.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.