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COMSPHERE 392xPlus Modems
3-6 November 1996 3920-A2-GN31-30
Table 3-1
(2 of 2)
392x
Plus
DCP LEDs
Label IndicatesColor
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.)
RXD/104* green Data is being transferred to the
selected port*
. (ON equals space.)
RTS/105* green RTS signal is ON for the
selected port*
.
CTS/106* green CTS signal is ON for the
selected port*
.
DSR/107*
(3921Plus
only)
green DSR signal is ON for the
selected port*
.
DTR/108* green The
selected port*
has turned ON DTR.
LSD/109* green The modem has detected a valid carrier signal and is capable of transferring data to the
selected port*
.
* The
selected
port
is one of the mux ports (1, 2, 3, or 4) or the Network Management System (NMS) diagnostic interface
(3920
Plus
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 3-2.
Table 3-2
SDCP LEDs
Label Color Indicates
OK green Power is ON and the modem is capable of operating.
Alarm red The selected modem detects a problem with its operation. For example, the modem
failed a self-test.
BckUp yellow The selected modem is operating on the backup network (dial or dual leased).
Test yellow The selected modem is involved in a test. Normal operation is not possible.
EC green The selected modem is in V.42/MNP Error Control mode.