was to use analog ports and channel bank equipment. With the LEI, a direct connection is
provided to the IPE. No channel bank equipment is required, resulting in a more robust and
reliable connection.
When used for connecting to third-party applications equipment, the LEI offers a number of
benefits. It is a more cost-effective alternative for connection because it eliminates the need
for expensive channel bank equipment. The LEI card supports powerful E1 monitoring, and
diagnostic capability. Overall costs for customer applications may also be reduced because
the E1-compatible IPE is often more attractively priced than the analog-port alternatives.
The LEI is compatible with all IPE-based systems and with standard public or private CEPT-
type carrier facilities. It supports CRC-4- or FAS only framing formats as well as AMI or HDB3
coding. Because it uses standard PCM in standard E1 timeslots, existing E1 test equipment
remains compatible for diagnostic and fault isolation purposes. A/B Bit signaling may be
customized according to the user's system, including the Australian P2 signaling scheme.
Card interfaces
The LEI passes voice and signaling data over DS-30X loops through the DS-30X Interface
circuits and maintenance data over the card LAN link.
E1 interface circuit
The LEI contains one E1 line-interface circuit which provides 30 individually configurable voice
interfaces to one E1 link in 30 different time slots. The circuit demultiplexes the 2.56 Mbps
DS-30X transmit signaling bitstreams from the DS-30X network loop and converts it into 2.048
mHz E1 transmit signaling bitstreams onto the E1 link. It also does the opposite, receiving
receive signaling bitstreams from the E1 link and transmitting receive signaling bitstreams onto
the DS-30X network loop.
The E1 interface circuit provides the following:
• An industry standard CEPT (0 to 655 feet) interface
• DS-30X signaling protocol into FXO A- and B-channel-associated signaling protocol
• Switch-selectable transmission and reception of E1 signaling messages over an E1 link
in either loop or ground start mode
• Switch-selectable call processing between the Australian P2, North American Standard,
or other user-configurable schemes
Signaling and control
The LEI also contains signaling and control circuits that establish, supervise, and take down
call connections. These circuits work with the system controller to operate the E1 line interface
NT5D33 and NT5D34 Lineside E1 Interface cards
200 Circuit Card Reference
July 2011
Summary of Contents for 1000 Series
Page 1: ...Circuit Card Reference Nortel Communication Server 1000 7 0 NN43001 311 04 04 July 2011 ...
Page 20: ...20 Circuit Card Reference July 2011 ...
Page 30: ...Introduction 30 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 116: ...Option settings 116 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 143: ...Figure 25 CP PIV card front Physical description Circuit Card Reference July 2011 143 ...
Page 148: ...NT4N39AA CP Pentium IV Card 148 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 287: ...Figure 86 Clock Controller Option 3 Operation Circuit Card Reference July 2011 287 ...
Page 302: ...NT5K21 XMFC MFE card 302 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 346: ...NT6D80 MSDL card 346 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 353: ...Figure 96 NTDK16 DLC Functional description Circuit Card Reference July 2011 353 ...
Page 461: ...Figure 147 Paging trunk operation Applications Circuit Card Reference July 2011 461 ...
Page 462: ...NT8D15 E and M Trunk card 462 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 500: ...NTAK09 1 5 Mb DTI PRI card 500 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 512: ...NTAK10 2 0 Mb DTI card 512 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 534: ...NTAK79 2 0 Mb PRI card 534 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 550: ...NTBK22 MISP card 550 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 560: ...NTBK50 2 0 Mb PRI card 560 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 595: ...Figure 165 MGC block diagram Introduction Circuit Card Reference July 2011 595 ...
Page 662: ...NTRB21 DTI PRI DCH TMDI card 662 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 668: ...NTVQ01xx Media Card 668 Circuit Card Reference July 2011 Comments infodev avaya com ...
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