Nortel Networks 1000 - Manual (Page 842)

842 NTAK79 2.0 Mb PRI card
The remote loopback function causes the device to transmit the same data
that it receives, using the jitter attenuated receive clock. The data is also
available at the receive data outputs. Local loopback causes the transmit
data and clock to appear at the receive clock and data outputs. This data
is also transmitted on the line unless transmit AIS is selected.
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
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.