Chapter 1: Connections and Setup
Cable Modem Overview
Front Panel
The following illustration shows the front panel of the model:
The LEDs on the front panel are described in the table below (from left to right):
THG570 Power DS US ONLINE
TEL2 Description
ON ON ON ON ON ON ON Power on 0.25 sec
Boot-up
Operation
X FLASH
X X X
Following system initialization
complete to (before) DS scanning
ON FLASH
OFF OFF X X X During DS scanning and acquiring SYNC
ON ON FLASH OFF X X X
From SYNC completed, receiving UCD to
ranging completed
ON ON ON FLASH
X X X
During DHCP, configuration file
download, registration, and Baseline
Privacy initialization
ON ON ON ON X X X Operational (NACO=ON)
DOCSIS
Start-up
Operation
ON FLASH
perational (NACO=OFF)
FLASH FLASH
X X
Wait registration with all DS and all
US – Lights Flash sequentially from the
right to left
Minimum duration 3 seconds
X X X X OFF X X
From 1 to 4 DS, from 1 to 4 LEDs are
ON.
From 5 to 8 DS, From 1 to 4 LEDs are
flashing
Duration 3 seconds
OFF X X X X X X
From 1 to 4 US, from 1 to 4 LEDs are
ON.
Channel
Bonding
Operation
FLASH FLASH
X X
Wait registration with all DS and all
US – Lights Flash sequentially from the
left to right
Minimum duration 3 seconds
ON ON ON ON X FLASH
OFF MTA DHCP
ON ON ON ON X OFF FLASH
MTA SNMP/TFTP
MTA
initialization
RSIP for NCS/Register for SIP
3
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