User`s manual

Installation 9
Front Panel Switches
A/O Determines if the modem is in originate mode or answer
mode when the modem is on-line.
D/V Toggles the modem on-line (off-hook, DATA mode) or off-
line (on-hook, VOICE mode, the telephone set is connected
to the line).
Rear Panel Markings
The U-336E rear panel is shown below:
Figure 2-2 Rear Panel
The following explains the connectors and switch on the rear panel.
• POWER
Power switch, turns the modem ON or OFF.
• POWER JACK
Input terminal for power adapter.
• LINE
Dial-up line RJ-11 terminal jack, for connection to a 2-wire
dial-up or 2-wire leased line.
• PHONE
RJ-11 terminal jack, for connection to a telephone set.