Clock Controller Interface - Avaya Nortel Communication Server 1000 Reference

Outgoing supervisory signals
The desired ABCD bit pattern for a channel is output by the NTAK10, under the control of the
system controller card. The bit pattern to be transmitted is held on the line for a minimum period
of time. This time is specified in the same message and ensures that the signal is detected
correctly at the far end.
With the exception of the outpulsing signals and special signals, such as Denmark's Flash
signal and Sweden's Parking signal, the minimum duration of any signal state is 100 ms. Some
signal states can have a minimum duration time that is longer than 100 ms.
Periodic Pulse Metering (PPM)
Periodic Pulse Monitoring (PPM) is used to collect toll charges on outgoing CO trunk calls.
TS16 microprocessor
The functions of this microprocessor include:
• receiving signaling messages supplied by the DS-30X microprocessor, decoding these
messages, and taking subsequent actions
• transmitting messages to the DS-30X microprocessor
• handling PPM
• updating the TS16 select RAM and TS16 data RAM
• providing outpulsing
• receive data from the change-of-state microprocessor
• transmitting AIS for CNET (France) application
Change-of-state microprocessor
The functions of this processor are:
• detecting valid change of state in TS16
• when a valid change is found, passing the new abcd bits to the TS16 microprocessor,
along with five bits to indicate the associated channel

Clock controller interface

The recovered clock from the external digital facility is provided to the clock controller through
the backplane-to-clock controller interface. Depending upon the state of the clock controller
Circuit Card Reference
Architecture
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