User manual

Chapter 3. Operation
3-6 ATLAS Quad USSI Module User Manual 61200261L1-1
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DTE STATUS
Read security: 5
Shows the status of the following key DTE interface signals (read-only).
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DATA RATE
Read security: 5
Displays the data rate at which each USSI port currently operates. The
number of DS0s assigned to a port and the rate per DS0 associated with the
active maps determines a port’s data rate.
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INBAND
STATS
Read security: 5
Displays information useful when using the inband control channel capa-
bility of the USSI.
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PLL/FIFO
Read security: 5
Indicates status of circuitry used to generate and detect data clock and the
status of elastic store buffer.
RTS
Request To Send from DTE
CTS
Clear To Send to DTE
DTR
Data Terminal Ready from DTE
DSR
Data Set Ready to DTE
DCD
Data Carrier Detect to DTE
RI
Ring Indicate to DTE
TD
Transmit Data from the DTE
RD
Receive Data toward the DTE
EC
External Clock from the DTE
Rx Frames
Number of frames received on inband control channel
Tx Frames
Number of frames sent on inband control channel
Rx Bytes
Number of bytes received on inband control channel
Tx Bytes
Number of bytes sent on inband control channel
Reset Stats
Resets all above fields to zero
Lock
Phase Lock Loop is locked
RXE
Receive data FIFO Empty
RXF
Receive Data FIFO Full
TXE
Transmit Data FIFO Empty
TXF
Transmit Data FIFO Full