CN8380EPF CONEXANT [Conexant Systems, Inc], CN8380EPF Datasheet - Page 43

• Manufacturer Part Number: CN8380EPF
• Description: integrated quad line interface unit unit for both 1.544 Mbps (T1) and 2.048 Mbps (E1) applications
• Manufacturer: CONEXANT [Conexant Systems, Inc]

CN8380
Quad T1/E1 Line Interface
2.5.3 Remote Line Loopback
N8380DSA
Remote Line Loopback (RLL) causes the received data on RTIP/RRING line
inputs to be looped back and re-transmitted on XTIP/XRING line outputs. This
loopback includes all receive and transmit circuitry and the JAT, but does not
include the ZCS decoder and encoder. If the JAT is not enabled, RLL enables the
JAT in the transmit direction for the duration of the loopback. In this case, the JAT
elastic store size is 8 bits. The receiver outputs (RPOSO/RNEGO and RCKO)
continue to output received data; transmit inputs (TPOSI/TNEGI and TCLK) are
ignored.
Advance Information
Conexant
2.0 Circuit Description
2.5 Loopbacks
2-21