NPort 5110 Series User’s Manual | Web Console Configuration |
Disconnection request from remote site
After the TCP connection has been shut down by the remote Ethernet modem or PC, NPort 5110 will send the “NO CARRIER” signal via the serial port and then return to command mode.
Ethernet Modem
Setting | Value | Notes | Necessity | |
| valid | The TCP port that other devices |
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TCP port | must use to contact this device. To | Required | ||
port No. | avoid conflicts with standard TCP | |||
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| ports, the default is set to 4001. |
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| 0 | TCP connection is not closed due to |
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| an idle serial line. |
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TCP alive check time |
| Optional | ||
1 – 99 | TCP connection is automatically | |||
| closed by this device if there is no |
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| min. |
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| TCP activity for the given time. |
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AT Commands
NPort 5110 supports the following common AT commands used with a typical modem:
No. | AT command | Description | Remarks |
1 | ATA | Answer manually |
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2 | ATD <IP>:<Port> | Dial up the IP address : Port No. |
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3 | ATE | ATE0=Echo OFF |
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| ATE1=Echo ON (default) |
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4 | ATH |
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5 | ATI, ATI0, ATI1, ATI2 | Modem version | reply “OK” only |
6 | ATL | Speaker volume option | reply “OK” only |
7 | ATM | Speaker control option | reply “OK” only |
8 | ATO | On line command |
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9 | ATP, ATT | Set Pulse/Tone Dialing mode | reply “OK” only |
10 | ATQ0, ATQ1 | Quiet command (default=ATQ0) |
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11 | ATSr=n | Change the contents of S register | See “S registers” |
12 | ATSr? | Read the contents of S register | See “S registers” |
13 | ATV | Result code type |
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| ATV0 for digit code, |
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| ATV1 for text code |
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| 0=OK |
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| 1=connect (default) |
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| 2=ring |
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| 3=No carrier |
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| 4=error |
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14 | ATZ | Reset (disconnect, enter command |
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| mode and restore the flash settings) |
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15 | AT&C | Serial port DCD control |
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| AT&C0=DCD always on |
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| AT&C1=DTE detects connection |
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| by DCD on/off (default) |
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