MSC1000G User's Guide
• The "ALC1248G", the "ALC" or the "line card" refers to the ALC1248G-51 for ADSL
over POTS (Annex A) line card. They also refer to the ALC1248G-53 for ADSL over
ISDN (Annex B). Differentiation is made where needed.
• The SLC1248G SHDSL Line Card may be referred to as the "SLC1248G", the "SLC" or
the "line card" in this User's Guide.
• The VLC1248G VDSL Line Card may be referred to as the "VLC1248G", the "VLC" or
the "line card" in this User's Guide.
Graphics Icons Key
IES-5000 series
Computer
Central Office/ ISP
Firmware Naming Conventions
A firmware version includes the model code and release number as shown in the following
example.
Firmware Version: V3.50(LU.1)
"LU" is the model code.
"1" is this firmware's release number. This varies as new firmware is released. Your
firmware's release number may not match what is displayed in this User's Guide.
User Guide Feedback
Help us help you. E-mail all User Guide-related comments, questions or suggestions for
improvement to techwriters@zyxel.com.tw or send regular mail to The Technical Writing
Team, ZyXEL Communications Corp., 6 Innovation Road II, Science-Based Industrial Park,
Hsinchu, 300, Taiwan. Thank you.
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Computer
DSLAM
Internet
Server
Gateway
Hub/Switch
Preface