Chapter 34: Ntbk51 Downloadable D-Channel Handler Daughterboard - Avaya Nortel Communication Server 1000 Reference

NTBK51 Downloadable D-channel Handler daughterboard
- traffic reporting including link capacity
Physical description
The NTBK51 daughterboard interfaces with the system CPU and is mounted on either the
NTAK09 1.5 DTI/PRI card or the NTBK50 2 Mb PRI digital trunk card.
You can install this card in:
• slots 1 through 9 in the main cabinet or slots 11-19, 21-29, 31-39, or 41-49 in the expansion
cabinets
• slots 1 through 4 in the Media Gateway. The card is not supported in the Media Gateway
Expansion.
The NTBK51 daughterboard, when installed on the NTAK09 digital trunk card, is addressed in
the same slot as the NTAK09.
One NTBK51 daughterboard is required for each PRI link.
LEDs are located on the faceplate of the NTAK09/NTBK50 card. The DCHI LED is a dual-color
(red/green). The LED is described in
Table 242: Faceplate LED
State
On (Red)
On (Green)
Off
Functional description
The main functional blocks of the NTBK51 architecture include the following:
• Microprocessors
• Main memory
• Shared memory
• EPROM memory
• Flash EPROM memory
• EEPROM memory
• Serial communication controller
562 Circuit Card Reference
Table 242: Faceplate LED
NTBK51 is disabled.
NTBK51 is enabled, but not necessarily established.
NTBK51 is not equipped.
Comments? infodev@avaya.com
on page 562.
Definition
July 2011