IDT82V2088 Integrated Device Technology, IDT82V2088 Datasheet - Page 24

• Manufacturer Part Number: IDT82V2088
• Description: Octal Channel T1/e1/j1 Long Haul/ Short Haul Line Interface Unit
• Manufacturer: Integrated Device Technology

OCTAL CHANNEL T1/E1/J1 LONG HAUL/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 seven channels, channel 1 can be configured
RCLKn
RCLK1
TCLKn
TCLK1
LOSn
TDNn
LOS1
TDN1
Figure-12
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-12 G.772 Monitoring Diagram
Clock and
Clock and
Recovery
Recovery
Data
Data
Shaper/LBO
Shaper/LBO
Waveform
Waveform
24
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