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MA-12
WESTERMO TELEINDUSTRI AB
MA-12
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Card Type
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Modem
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Chip Set
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Unidentified
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I/O Options
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AC power, 25-pin serial port, network interface via terminal block
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Data Modulation Protocol
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ITU-T V.24/V.28
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Wiring Type
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Unshielded twisted pair
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Maximum Data Rate
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38.4Kbps
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Data Bus
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External
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CONNECTIONS
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Function
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Label
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Function
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Label
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AC power
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CN1
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25-pin serial port
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CN3
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UTP interface (terminal block)
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CN2
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USER CONFIGURABLE SETTINGS
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Setting
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Label
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Position
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115V AC enabled
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S2
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On
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230V AC enabled
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S2
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Off
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CARRIER CONTROL
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Setting
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S1/1
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S1/2
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S1/3
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S1/4
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S1/5
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S1/6
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í Carrier forced high
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Off
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On
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Off
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Off
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Off
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Off
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Carrier activated by AUX
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Off
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On
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On
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Off
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Off
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Off
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Carrier activated by SRS
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Off
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On
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Off
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On
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Off
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Off
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Carrier activated by RFR
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Off
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On
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Off
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Off
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On
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Off
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Carrier activated by RTS
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Off
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On
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Off
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Off
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Off
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On
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Carrier activated by DTR
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On
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Off
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Off
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Off
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Off
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Off
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Carrier activated by DTR and AUX
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On
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Off
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On
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Off
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Off
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Off
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Carrier activated by DTR and SRS
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On
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Off
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Off
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On
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Off
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Off
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Carrier activated by DTR and RFR
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On
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Off
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Off
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Off
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On
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Off
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Carrier activated by DTR and RTS
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On
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Off
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Off
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Off
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Off
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On
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CLEAR TO SEND CONTROL
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Setting
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S1/7
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S1/8
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S1/9
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í CTS controlled by RTS
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On
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Off
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Off
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CTS forced high
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Off
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On
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Off
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CTS follows DCD
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Off
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Off
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On
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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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PWR
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Unidentified
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On
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Power is on
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PWR
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Unidentified
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Off
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Power is off
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RD
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Unidentified
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On
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Modem is receiving data
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RD
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Unidentified
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Off
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Modem is not receiving data
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TD
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Unidentified
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On
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Modem is transmitting data
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TD
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Unidentified
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Off
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Modem is not transmitting data
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RTS
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Unidentified
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On
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RTS signal is high
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RTS
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Unidentified
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Off
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RTS signal is low
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DCD
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Unidentified
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On
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Data carrier present
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DCD
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Unidentified
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Off
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Data carrier not present. Connection not established
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