Black Box Modem MD885A-R3 Manual de usuario descargar pdf (Pagina 13)

Modem 34336

2.2.2 EIA S

TATUS

CREEN

The EIA status screen indicates the operational status of the Modem as well

as the condition of certain EIA RS-232 leads. The abbreviations that may

appear are identified below. Typically, only a few of these abbreviations

will be displayed during actual operation.

D = Dial line occupied.

R = Ringing (R appears in same position as D).

S = Connection secured by security handshake. (S appears in same

position as D. S and D may flash alternately).

TR = Data Terminal Ready.

MR = Data Set Ready.

RS = Request to Send.

CS = Clear to Send.

TD = Transmit Data.

14.4, 9600, 4800, etc. = Data speed in Kbps (thousand bits per second)

or bps (bits per second) (“idle” or H-01, H-14, etc. may also be

displayed in the data speed position; see text below).

TM = Test mode.

ER = Error (poor signal quality).

CD = Carrier Detect.

RD = Receive Data.

Codes beginning with H (such as H-01) in the lower left corner of the status

screen indicate that the Modem is handshaking with another modem

(attempting to establish a connection).

When the modem is off-line, the word “idle” is displayed in the lower left

corner of the status screen.

D TR MR RS CS

9600 CD

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Black Box Modem MD885A-R3 Manual de usuario Pagina 13