General DataComm SpectraComm 553 Installation & Operation Manua page 53

Operation
NETWORK ALARM STATUS
Network OOF:
Network LOS:
Network AIS:
Network USS:
Network BPV:
Network CRC:
Network RYEL:
Network LAD:
Net Timing Loss: INACTIVE
UNIT ALARM STATUS
EEPROM Checksum: INACTIVE
Front Panel Test: INACTIVE
Unit Failure:
Unsolicited Test: INACTIVE
Power Up:
Config Change:
Top Supply Fail: INACTIVE
Bot Supply Fail: INACTIVE
Remote Not Resp: INACTIVE
[0] RETURN TO PREVIOUS MENU
Figure 3-19
EIA Status and Receive Level Screen
The EIA Status and Receive Level screen, shown in
information concerning DTE interface signals and the strength of the T1 signal(s) being received.
The EIA Status portion of the screen displays the current status of eight DTE interface signals as
OFF, ON, or TRANS. TRANS indicates that the signal is transitioning, as opposed to being in a
prolonged On or Off condition.
The Network Rx Line Level and Cascade Rx Line Level displays indicate signal strength at their
respective interfaces as a range in decibels:
+2 dB to - 7.5 dB
-7.5 to -15 dB
-15 dB to -22.5 dB
Under -22.5 dB
If there is not any signal at all being received, No Signal is displayed as the line level. The
Cascade Line Level display shows Cascade Not Installed when the optional cascade port
is not present.
When you are done viewing the screen, type 0 and press the Enter key to return to the Monitor/
Status menu.
Note
At low signal levels (-15 dB and below) the unit's sensitivity to pulse density (number of marks in the data)
can cause overlapping in the range display.
076R155-000
Issue 7
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Monitor Alarm Status Screen
SpectraComm 553 Fractional T1 DSU
Installation and Operation Manual
CHANNEL ALARM STATUS
DCD Loss:
DSR Loss:
DTR Loss:
External Tx Clock Loss: INACTIVE
RxD No Transitions:
TxD No Transitions:
Redundant Mode:
CASCADE ALARMS STATUS
Cascade OOF:
Cascade LOS:
Cascade AIS:
Cascade USS:
Cascade BPV:
Cascade CRC:
Cascade RYEL:
Figure 3-20, presents current status
Terminal Interface
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