72 Chapter 3: EIU datafill
297-8991-910 Standard 03.01 August 1999
EIU MAC addressesBy industry convention, MAC addresses for networking devices are uniqueworldwide. In typical networking devices, the MAC address is burned into aPROM on the circuit pack. However, for EIUs on the DMS-100 switch, the
CARDINFO see subfields

Card information

This field specifies the card data and
consists of subfield APPLPEC.
APPLPEC NT9X84AA

Application product engineering code

Enter the PEC of the application card.
Card NT9X84AA is used with EIU
applications.
This field consists of subfields PBPED,
HEARTBEAT, and MAC_ADDRESS.
PBPEC NT9X85AA
or
NT9X85BA

Paddle board product engineering code

Enter one of the PECs.
Enter NT9X85AA for EIU coax
applications.
Enter NT9X85BA for EIU unshielded
twisted pair applications.
HEARTBEAT YES or NO

Heartbeat

Enter YES if the EIU expects a
heartbeat indication signal from the
media access unit (MAU) connected to
it; otherwise, enter NO.
Yes is allowed only if the MAU supports
heartbeat of signal quality error (SQE)
MAC_
ADDRESS 000075F00000 to
000075FFFFFF

Media access control address

Enter a 12-character hex string
representing the MAC address.
The MAC address is represented in
hexadecimal without any spaces
between digits. The MAC_ADDRESS
must be of the form 000075Fxxxxx.
MAC addresses for EIUs are defined by
Nortel. Refer to “Appendix I: Obtaining a
MAC address” for more information on
MAC addresses.
Table 11 Field descriptions for table LIUINV for EIU datafill (continued)
Field Subfield or
refinement Entry Explanation and action
(Sheet 4 of 4)