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TA+ X.21
STOLLMANN GMBH
TA+ X.21
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Card Type
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ISDN TA
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Chip Set
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Unidentified
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Maximum Data Rate
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64Kbps x 2
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Data Bus
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External
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Data Modulation Protocol
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V.110, 1TR6, DSS1, X.30
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DIAGNOSTIC LED(S)
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LED
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Color
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Status
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Condition
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T
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Red
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On
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TA is transmitting data
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T
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Red
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Off
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TA is not transmitting data
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R
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Red
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On
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TA is receiving data
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R
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Red
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Off
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TA is not receiving data
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C
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Red
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On
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DTR signal is high
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C
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Red
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Off
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DTR signal is low
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I
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Red
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On
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Carrier signal detected
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I
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Red
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Off
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Carrier signal not detected
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L2 Status
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L1 Status
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Condition
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On
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On
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TA is performing power-up tests or is connected
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Blinking
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Blinking
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TA is resetting
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Off
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On
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TA is ready
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.25s on, .75s off
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On
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Call is in progress
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.75s on, .25s off
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On
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Negotiation is in progress
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1s on, 1s off
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On
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No ISDN signal detected
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.5s on, .5s off
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On
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Remote TA busy
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.3s on, .3s off
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On
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Remote TA did not answer
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.25s on, .25s off
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On
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Could not connect to remote TA
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Off
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Off
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Hardware error detected
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Blinking
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Off
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Hardware error detected
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Off
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.25s on, .75s off
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ISDN has failed
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Proprietary Command Sets
See document V1973 for a full command summary.
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