Nortel Networks Circuit Card 311 User Manual
Page 942
942
NTAK79 2.0 Mb PRI card
CEPT transceiver
The transmitter and receiver functions are used for synchronization,
channel, and signal extraction. The functions meet applicable specifications
of the CCITT recommendation G.703 and G.732.
The transceiver provides transmit framing based on the 2.048 MHz clock
derived from the DS-30X system clock and 1 KHz framing pulse.
The transmitter and receiver functions are used for synchronization,
channel, and signal extraction. The functions meet applicable specifications
of the CCITT recommendation G.703 & G.732.
The transceiver provides transmit framing based on the 2.048 MHz clock
derived from the DS-30X system clock and 1KHZ framing pulse.
The transmitter and receiver functions are used for synchronization,
channel, and signal extraction. The functions meet applicable specifications
of the CCITT recommendation G.703 and G.732.
The transceiver provides transmit framing based on the 2.048 MHz clock
derived from the DS-30X system clock and 1 KHz framing pulse.
Slip control
Slip control provides organized recovery of PCM when the clock recovered
from the external facility is at a different frequency than the local clock.
Slip control provides organized recovery of PCM when the clock recovered
from the external facility is at a different frequency with respect to the local
clock.
Slip control provides organized recovery of PCM when the clock recovered
from the external facility is at a different frequency than the local clock.
D-channel support interface
The D-channel support interface is a 64 Kbps, full-duplex serial bit stream
configured as a DCE device. The data signals include:
•
Receive data output
•
transmit data input
•
receive clock output
•
transmit clock output
The receive and transmit clocks have slightly different bit rates from each
other, as determined by the transmit and receive carrier clocks.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
Copyright © 2003-2008, Nortel Networks
.