With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
shelfCardInsertedCardType
shelf Card Inserted Card Type
1.3.6.1.4.1.43.1.12.3.1.1.2.2.13.1.1
This attribute indicates the type of card that is currently inserted in this slot.
Back to Nortel-Magellan-Passport-ShelfMIB MIB page.
IPHost Network monitor allows you to monitor shelfCardInsertedCardType on Allied Telesis device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Nortel modems right now.