Filter
Top Products
NTBK51 Downloadable D-channel handler Page 521 of 544
Option 11C and 11C Mini Technical Reference Guide
LEDs are located on the faceplate of the NTAK09/NTBK50 card. The DCH
LED is a dual-color (red/green), with the states represented as follows:
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
• Sanity timer
• Bus timer
Microprocessors
One microprocessor handles data transfer between each serial interface and
software, reports the status of each port and takes commands from software
to control the activities of the ports. A high performance MPU supports the
D-channel from the PRI card and other software applications running
simultaneously on other ports of the DDCH card.
Table 161
Faceplate LEDs
State Definition
On (Red) NTBK51 is disabled.
On (Green) NTBK51 is enabled, but not necessarily established
Off NTBK51 is not equipped.