COMSPHERE 392xPlus Modems
Table
(2 of 2)
392xPlus DCP LEDs
Label | Color | Indicates |
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Port* 1,2,3,4 (3921Plus multiport only)
green
ON ± The selected port* is one of the mux ports (either 1, 2, 3, or 4).
OFF ± The port* is not selected.
TXD/103* | green | The modem is receiving data from the selected port* to transmit. (ON equals space.) |
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RXD/104* | green | Data is being transferred to the selected port*. (ON equals space.) |
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RTS/105* | green | RTS signal is ON for the selected port*. |
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CTS/106* | green | CTS signal is ON for the selected port*. |
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DSR/107* | green | DSR signal is ON for the selected port*. |
(3921Plus |
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only) |
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DTR/108* | green | The selected port* has turned ON DTR. |
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LSD/109* | green | The modem has detected a valid carrier signal and is capable of transferring data to the |
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| selected port*. |
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*The selected port is one of the mux ports (1, 2, 3, or 4) or the Network Management System (NMS) diagnostic interface (3920Plus only). For example, when the selected port is Port 1 of the mux, the EIA indicators for TXD, RXD, RTS, CTS, DSR, DTR, and LSD will indicate the status of the EIA signals on the Port 1 interface of the multiplexer. For information about making this selection, refer to the Control Branch section of this chapter. To display the port which has been selected, refer to the Quick Configuration Display section of this chapter.
The SDCP LEDs are listed and described in Table
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| Table |
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| SDCP LEDs |
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Label | Color | Indicates |
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OK | green | Power is ON and the modem is capable of operating. |
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Alarm | red | The selected modem detects a problem with its operation. For example, the modem |
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| failed a |
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BckUp | yellow | The selected modem is operating on the backup network (dial or dual leased). |
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Test | yellow | The selected modem is involved in a test. Normal operation is not possible. |
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EC | green | The selected modem is in V.42/MNP Error Control mode. |
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November 1996 |
