Multi-Tech Systems MT5600DSVD - Manual (Page 19)

MultiModemDSVD User Guide 3 Operation
14
Introduction
Like any modem, your MultiModemDSVD operates only under the control of a
communication program, such as the one included with the modem. It also operates
under other general-purpose data communication programs, such as Windows Ter-
minal and HyperTerminal. For information on how to use the modem with the com-
munication program of your choice, please refer to the program’s documentation.
Unlike other modems, with the MultiModemDSVD you can also simultaneously
send voice and data over a single phone line or, using third-party white-board soft-
ware, work on a document with someone at another location.
Front Panel
Figure 3-1. Front panel
The MultiModemDSVD has ten LED indicators on the front panel that indicate sta-
tus, configuration, and activity:
TD Transmit Data. The TD LED flashes when the modem is transmitting data to
another modem. The state of the LED matches the TD circuit on pin 2 of the
RS-232C/V.24 interface.
RD Receive Data. The RD LED flashes when the modem is receiving data from
another modem. The state of the LED matches that of the RD circuit on pin 3 of
the RS-232C/V.24 interface.
CD Carrier Detect. The CD LED lights when the modem detects a valid carrier
signal from another modem. It is on when the modem is communicating with
the other modem and off when the link is broken.
56 56K Mode (56,000–28,000 bps). The 56 LED lights whenever the modem con-
nects to an ISP server in K56flex or V.90 mode. The actual connection speed
depends on server capabilities and line conditions.
33 V.34 Mode (33,600–16,800 bps). The 33 LED lights whenever the modem con-
nects in V.34 mode.
14 V.32bis Mode (14,400 bps–). The 14 LED lights whenever the modem connects
in V.32bis mode.
Note: Although the modem can connect at lower than V.32bis speeds, no speed
indicator lights during the connection.