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DCP Operation
3-33910-A2-GN32-40 September 1998
Status Indicators
The 391x Series modems’ status indicators continuously provide information on the modem’s
operating condition. All of the status indicators on the Model 3910 appear on the DCP
(Figure 3-1), whereas the status indicators for the carrier-mounted Model 3911 are located on the
Model 3911’s faceplate, the SDCP, and the SDU faceplate (Figure 3-2).
Select
SDU12345678910111213141516
COMSPHERE 3000
SELECT
KEY
STATUS
INDICATORS
CARRIER SLOTS 1–16
F1 F2 F3
OK Alarm BckUp Test EC
NETWORK
DEVICE
ALARM
DIAL
BACKUP
TEST
MODE
ERROR
CORRECTION
OK Alarm BckUpTest EC
KEYPAD
LCD
496-14175-01
OK
Alrm
In
Out
Status
SDU
Diag
Diag
TXD
RXD
RTS
CTS
DSR
DTR
LSD
103
104
105
106
107
108
109
Pwr
Alrm
Test
Dial
RI
Busy
Serv
SQ
Status
Front Panel
3911
142
125
Spkr
Figure 3-2. Optional SDCP, Model 3911 Faceplate, and Optional SDU