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3 Operation
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MultiModemZBA-V-V92 User Guide
Chapter 3 - Operation
Your Multi-Tech modem operates under the control of a communication program, such as the
PhoneTools program included with the modem. It also can operate under other general-purpose data
communication programs, such as Windows HyperTerminal. For information on how to use the
modem with the communication program of your choice, please refer to the program’s
documentation.
Front Panel
Figure 3-1. Front panel
The MultiModemZBA has ten LED indicators on the front panel, which indicate status, configuration,
and activity:
TD
Transmit Data. The TD indicator flashes when the modem is transmitting data to another modem.
RD
Receive Data. The RD indicator flashes when the modem is receiving data
CD
Carrier Detect. The CD indicator 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 indicator lights whenever the modem is set for or connects
using the V.90 or V.92 protocol. The actual connection speed depends on ISP server capabilities and
line conditions.
33
V.34 Mode (33,600–16,800 bps). The 33 indicator lights whenever the modem connects using the
V.34 protocol.
14
V.32bis Mode (14,400–12,000 bps). The 14 indicator lights whenever the modem connects using
the V.32bis protocol.
Note: Though the modem can connect at lower than V.32bis speeds, no speed indicator lights during
the connection.