Black Box MD1641A, MD1640A manual On-line diagnostics information On or Off Hook H

SERIES II INTELLIGENT DATA/FAX MODEMS

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Feb29, 96 4:50pm MEWDEF Connected to device

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00:04:55

024	2A71	0213
***********		ONLINE DIAGNOSTICS		***********
LINK	TYPE		V.34
LINE	SPEED		28800/26400
SERIAL	SPEED		19200
ERROR CNTRL/COMPRESS			LAPM
FALL	BACK/FORWARD		LOCALLY ENABLED
DATA	FORMAT		ASYCHRONOUS
SYMBOL RATE(SYMETRIC)			3429/3429
CARRIER FREQUENCY			1959/1959
TRELLIS ENCODER			4D 16-STATE/4D 16-STATE
PRECODING			OFF/OFF
LINE	TYPE		DIAL UP
RECV. SIGNAL LEVEL			-024.5 dBm
TRANS SIGNAL LEVEL			-011 dBm
NUMBER OF RETRAINS			000
ROUND TRIP DELAY			0005 ms	(MEANINGFUL IN V34 AND V32 MODE)
NEAR/FAR ECHO LEVEL			-028.0/072.0 dBm

F1

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F7

F8

F9

F10

F11

F12

Figure 5-2. On-line diagnostics information.

On or Off Hook H

You can make the Series II Modem hang up (go On Hook). Entering ATH1<CR> brings the line Off Hook, just as if you picked up the telephone set. You can hang up by entering ATH0 or ATH (the default is 0 when no number is entered).

Escape Sequences- Entering Command Mode While Still On-Line +++AT<CR>

It is possible to cause the Series II Modem to enter Command mode after the modem has gone on-line with a remote modem without disconnecting the call. This is done by entering an Escape Code. The default Escape Code used by the Modem is three plus signs (+++) followed by the letters A and T, up to sixty command characters (most typically “H”, to hang up), and a RETURN. The number of command characters allowed after +++ AT<CR> , is defined by S-Register S34. S-Register S34 defaults to ten command characters.

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