Backplane Interfaces - Nortel Circuit Card Installation Manual

Page 848 of 906

Backplane interfaces

553-3001-211 Standard 3.00
NTVQ55AA ITG Pentium card
NWK Status LED
NWK Status LEDs display the TLAN interface card Ethernet activity:
• Green – on if the carrier (link pulse) is received from the TLAN interface
card Ethernet hub.
• Yellow – flashes when there is TLAN interface card data activity. During
heavy traffic, yellow can stay continuously lit.
Note: There are no Ethernet status LEDs for the ELAN management
interface.
PC card slots
The ITG-P card has one faceplate PC card slot, designated drive A. The PC
card slot is used for optional maintenance (backup and restore). The ITG-P
card also has one unused inboard slot, designated drive B. The PC card slots
support PC-based hard disks (ATA interface) or high-capacity PC flash
memory cards.
Maintenance Display
A four character, LED-based, dot matrix display shows the maintenance
status fault codes and other card state information.
RS-232 Maintenance Port
The ITG-P card faceplate provides a female DIN-8 serial maintenance port
connection (labeled Maint Port). An alternative connection to the faceplate
serial maintenance port exists on the NTMF94EA I/O panel breakout cable.
Do not connect maintenance terminals or modems to the faceplate and I/O
panel DB-9 male serial maintenance port at the same time.
The backplane connector provides connection to the following:
• ELAN interface card
• TLAN interface card
August 2005