IDT82V2044E Integrated Device Technology, IDT82V2044E Datasheet - Page 21

• Manufacturer Part Number: IDT82V2044E
• Description: 4 Channel T1/j1/e1 Short Haul Liu
• Manufacturer: Integrated Device Technology

QUAD CHANNEL T1/E1/J1 SHORT HAUL LINE INTERFACE UNIT
3.3.10 G.772 NON-INTRUSIVE MONITORING
to monitor the data received or transmitted in any one of the remaining chan-
nels. The MON[3:0] bits (GCF1, 60H) determine which channel and which
direction (transmit/receive) will be monitored. The monitoring is non-intru-
sive per ITU-T G.772.
CVn/RDNn
CVn/RDN1
RDn/RDPn
RDn/RDP1
TDn/TDPn
TDn/TDP1
In applications using only three channels, channel 1 can be configured
RCLKn
RCLK1
TCLKn
TCLK1
LOSn
TDNn
LOS1
TDN1
Figure-11
LOS/AIS
Detector
HDB3/AMI
HDB3/AMI
LOS/AIS
Detector
HDB3/AMI
HDB3/AMI
Decoder
Encoder
Decoder
Encoder
B8ZS/
B8ZS/
B8ZS/
B8ZS/
Loopback
Remote
illustrates the concept.
Attenuator
Attenuator
Attenuator
Attenuator
Jitter
Jitter
Jitter
Jitter
Figure-11 G.772 Monitoring Diagram
Clock and
Clock and
Recovery
Recovery
Data
Data
Waveform
Waveform
Shaper
Shaper
21
Slicer
Slicer
Data
Data
1's Clock and Data Recovery. The signal can be observed digitally at the
RCLK1, RD1/RDP1 and RDN1. If Channel 1 is configured to Remote Loop-
back while in the Monitoring mode, the monitored data will be output on
TTIP1/TRING1.
The monitored line signal (transmit or receive) goes through Channel
Driver
Driver
Line
Line
Equalizer
Equalizer
Adaptive
Adaptive
Channel N (N > 2)
Channel 1
Termination
Termination
Termination
Termination
Transmitter
Transmitter
Receiver
Receiver
Internal
Internal
Internal
Internal
TEMPERATURE RANGES
Monitor
G.772
INDUSTRIAL
RTIPn
RRINGn
TTIPn
TRINGn
RTIP1
RRING1
TTIP1
TRING1