m28333-3x Mindspeed Technologies, m28333-3x Datasheet - Page 40

• Manufacturer Part Number: m28333-3x
• Description: Single/dual/triple E3/ds3/sts-1 Line Interface Unit
• Manufacturer: Mindspeed Technologies

2.0 Functional Description
2.5 Additional M2833i Functions
Figure 2-10. Remote Loopback
2-16
E3MODE
RLOOP
LLOOP
RPOS
RNEG
RCLK
RLOS
TNEG
TPOS
TCLK
TAIS
XOE
PDB
LBO
DATA
MUX
DECODER
Encoder
immediately from the encoder output to the decoder input in place of the received
data. Additionally, this data is sent out the TLINEP and TLINEM/N pins.
NOTE:
In local loopback, set by asserting pin LLOOP, the transmit data loops back
Figures 2-10
Transmit AIS operation overwrites data with an all 1’s pattern during local
loopback, it does not affect remote loopback operation.
PDATA/
NDATA
TCLK
Mindspeed Technologies
PDATA
NDATA
DATCLK
RLOSMAX
RLOSTHR
RLOSMDIS
and
Shaper
Pulse
Recovery
Clock/
Data
2-11
illustrate remote and local loopback flow.
ALOS
P
N
Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit
DRIVER
LINE
Receiver
Monitor
TX
™
M28331/M28332/M28333 (–3x)
REQH
RLINEP
RLINEM/N
REFCLK
TMONM
TMONTST
TLINEP
TMONP
TXMON
TLINEM/N
28333-DSH-003-A