ATLAS 550 System Manual - Adtran

Section 4 User Interface Guide ATLAS 550 System Manual
MODULES (USSI-2) > ALARM STATUS > ALARMS
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Displays an alarm condition on the ATLAS 550 unit.
SLIP A rate mismatch exists between the DTE clock and the network-side
clock (as set by DS0 assignment).
PLL The USSI port is not able to lock onto the clock provided by the
network interface.
ZERO The DTE is sending an excessive number of consecutive zeroes to the
network interface.
NO EXT CLK The DTE is not providing an external transmit clock. This alarm
displays only if the USSI port is configured to get its transmit clock
from the DTE.
PKT EP ALM A packet endpoint has detected missing or incorrect framing.
MODULES (USSI-2) > DTE STATUS
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Shows the status of key DTE interface signals. An asterisk (*) indicates the presence of a signal and a
hyphen (-) indicates no signal present.
MODULES (USSI-2) > DTE STATUS > PRT
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Operating port number. There are 2 available interfaces on the Dual USSI Option Module.
MODULES (USSI-2) > DTE STATUS > DTE STATUS
The following signals are monitored (these options are read-only):
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 present.
MODULES (USSI-2) > DATA RATE
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Displays the data rate at which each USSI port is currently operating. A port’s data rate is determined by
the number of DS0s assigned to it and the rate per DS0 associated with the active maps.
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