Description Of The Dcm-7 - Tandy DCM-7 Operation Manual

Description of the DCM-7
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When power is first applied, several of the indicators on the DCM-7's front
panel will light - depending on the status of the computer's protocol and
DIP switch settings. These 6 indicators show the Modem's internal and ex-
ternal operation status.
G)
POWER indicator lights when the power is ON.
@ POWER switch turns the Modem ON or OFF. Be sure. to turn it OFF
when the Modem is not being used.
®
OFF HOOK indicator lights when the Modem is ON LINE (connected
to the phone line).
@ TERMINAL READY indicator lights when the terminal is supplying the
DTR (Data Terminal Ready) signal.
®
CARRIER DETECT indicator lights when the Modem receives a carri-
er tone or generates a "false" carrier. ·
®
TRANSMIT DATA indicator flashes when the Modem is transmitting
data.
(j) RECEIVED DATA indicator flashes when the Modem is receiving
dat~.
CD
®
POWER
I
OFF HOOK
I
TERMINAL
READY
®
CARRIER
DETECT
®
I
TRANSMIT
I
RECEIVED
DATA DATA
TANDY'
300 BPS INTELLIGENT MODEM DCM-7
Figure 1. Front Panel View
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