Operation
Dual V.34 Front Panel
3-2
SpectraComm Dual V.34 Modem
060R122-000
Installation and Operation
Issue 15
Dual V.34 Front Panel
Table 3-1
Dual V.34 Front Panel Controls and Indicators
Front Panel
LED/Switch
Use
ON
Power ON.
Green - power is applied to the modem.
SD
Send Data.
Green - When ON indicates a SPACE condition in the transmitted data.
OFF indicates a MARK condition.
RD
Received Data.
Green - When ON indicates a SPACE condition in the received data.
OFF indicates a MARK condition.
OH
Off Hook.
Green - When ON, the modem is in the off-hook state.
CO
Data Carrier Detect.
Green - When ON, the modem has turned on DTE interface pin 8 (or
DCD is on), indicating it is receiving data.
TR
ON indicates the DTE has turned On DTE interface pin 20 (or DTR is
On), indicating it is ready for data communications.
OFF indicates the DTE has turned Off pin 20, indicating it is not ready
for data communications.
FLASHING indicates the modem is in data mode with encyrption in
effect.
TM
Test Mode (common to A&B).
Red - When ON, the modem is in a test mode.
ALM
Alarm.
Red - Not Used.
ST
When depressed, starts an End-to-End Self Test. Can be used after the
corresponding AL for ITU-T V.54 Loop 3 with Self-Test.
AL
When depressed, starts/stops the ITU-T V.54 Loop 3 (Local Loop).
Can be used before the corresponding ST for ITU-T V.54 Loop 3 with
Self-Test. (Local Loop Self-Test).
Summary of Contents for 060A027-001
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