Nortel Networks 1000 - Manual (Page 884)

884 NTBK50 2.0 Mb PRI card
loopback causes the transmit data and clock to appear at the near-end
clock and receive data outputs. This data is also transmitted on the line
unless an Alarm Indication Signal (AIS) is transmitted instead.
The remote loopback function causes the device to transmit the same
data that it receives using the jitter attenuated receive clock. The data is
additionally 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.
The remote loopback function causes the far-end device to transmit the
same data that it receives, using the jitter attenuated receive clock. The
data is additionally available at the far-end receive data outputs. Local
loopback causes the transmit data and clock to appear at the near-end
clock and receive data outputs. This data is also transmitted on the line
unless an Alarm Indication Signal (AIS) is transmitted instead.
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 with respect to the local
clock.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.