Nortel Networks 1000 - Manual (Page 786)

786 NTAK10 2.0 Mb DTI card
alarm information is sent. The multiplexer output is fed to the carrier
interface which can forward it to the carrier or perform per channel
loopback.
Receive data
To receive data, PCM/Data from the carrier interface is converted from
serial to parallel, is buffered, and is fed to the pad prom. It then sent onto
the DS-30X interface, where signaling information from the signaling
interface circuitry is multiplexed.
To receive data, PCM/Data from the carrier interface is converted from
serial to parallel, is buffered, and is fed to the pad prom. It then sent
onto the DS 30X inteface, where signaling information from the signaling
interface circuitry is multiplexed.
DS-30X microprocessor
The DS-30X is a utility processor, responsible for the following tasks:
• controlling the DS-30X interface
• receiving and decoding of messages and taking appropriate action
•
transmitting TS16 messages to the TS16 microprocessor
• receiving TS16 messages from the TS16 microprocessor and passing
these messages to the A07
• providing the 19.2 Kbps serial interface to the Card-LAN
• controlling LEDs
•
downloading Local Calling Areas (LCAs)
•
monitoring errors and alarms
• detecting the change of state in TS0, and outputting TS0 data
•
counting bipolar violations, slips, PLL alarms, frame-alignment errors,
and CRC-4 errors
•
monitoring the status of frame alignment and multiframe alignment
•
detecting and reporting of alarm indication signals (AIS)
• updating of per channel loopback registers
• controlling the far-end loopback and digroup loopback functions
The DS-30X is a utility processor, responsible for the following tasks:
• controlling the DS-30X interface
•
receiving and decoding of messages and taking appropriate action
•
transmitting TS16 messages to the TS16 microprocessor
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.