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Installation 7
2
Installation
This chapter describes the panel function and installation procedure
for the U-336S.
A shielded RS-232 cable is required to ensure compliance with
FCC Part 15, and it is the responsibility of the user to provide and
use a shielded RS-232 cable. Make sure your installation site is
clean and well ventilated. The ventilation slot of your ZyXEL
modem located on the sides and bottom should not be covered and
should allow free movement of air.
Front Panel
The figure below shows the front panel of the U-336S. There are
10 LED indicators, a 20 x 2 LCD display, and four key switches.
Figure 2-1 Front Panel
Front Panel LEDs
PWR Power ON indicator, lights up when your modem is turned
ON.
OH
Off-Hook indicator, lights up when your modem is in data
mode or off-hook. It goes out when your modem is in talk
mode or on-hook.
Summary of Contents for U-336S
Page 1: ...U 336S User s Manual Version 2 0 Mar 1997 ZyXEL ACCESSING INTERNET INTRANET ...
Page 18: ...6 Introduction ...
Page 24: ...12 Installation ...
Page 72: ...60 Special Functions ...
Page 98: ...86 Fax Operation ...
Page 115: ...AT Command Set Summaries 103 ...
Page 138: ...126 Status Registers Result Codes Numerical V0 Verbose V1 Numerical V0 Verbose V1 14400 33600 ...
Page 139: ...Status Registers Result Codes 127 ...
Page 157: ...Connector Pinouts 145 ...