Nortel Meridian ITG Line 2.0 Description, Installation And Operation Manual page 23

• Yellow - flashes when there is T-LAN data activity. During heavy traffic,
yellow can stay continuously lit.
Note: There are no Ethernet status LEDs for the E-LAN management
interface.
PC Card slots
The ITG Line 2.0 card has one faceplate PC card slot (designated drive A:).
It is used for optional maintenance (backup and restore). The ITG Line 2.0
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 (Maint. Port)
The ITG Line 2.0 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.
Backplane interfaces
The backplane connector provides DS-30X and Card LAN interfaces.
DS-30X voice/signaling
DS30X carries Pulse Code Modulation (PCM) voice and proprietary
signaling on the IPE backplane between the ITG Line 2.0 card and the
Intelligent Peripheral Equipment Controller (XPEC).
Card LAN
Card LAN carries card polling and initialization messages on the IPE
backplane between the ITG Line 2.0 card and the Intelligent Peripheral
Equipment Controller (XPEC).
ITG Line 2.0/i2004 Internet Telephone Description, Installation, and Operation
Description Page 23 of 302