Cable Modem Troubleshooting: RCA DCM315

Light patterns, images, manuals and more helpful info for the RCA DCM315 cable modem –

Manufacturer: RCA Model: DCM315
RCA DCM315
Modem Light Indicators (during normal operation)
Message

Flashes when you have unread email messages (only when supported
by the ISP).

Cable Activity

Off – No traffic is passing through the cable modem.
Flashing – Indicates traffic passing through the cable modem.

Cable Link

Off or Flashing – Modem is not acquired.
On – When both this light and the "Internet" light is on steady,
the modem is acquired.

PC Link

Off – No connection to the PC is detected or the modem is in
standby mode.
Flashing – Indicates activity between the modem and PC.
On – The connection to the PC is detected.

Internet

Off or Flashing – Modem is not acquired.
On – When both this light and the "Cable Link" light is on steady,
the modem is acquired.

Notes and Useful Information:

When the modem is turned on for the first time (and each time the modem is reconnected to power), the modem lights flash in a pattern that enables you to recognize at which phase of initialization the modem is in. The pattern begins (from right to left):

  1. Internet Light blinking alone – Modem is searching for downstream signal.
  2. Internet and PC Link blinking together – Dowstream is tuned and searching for Upstream signal.
  3. Internet, PC Link, and Cable Link blinking together – Upstream is tuned and receiving IP address.
  4. Internet, PC Link, Cable Link, and Cable Activity blinking together – Downloading configuration file.
  5. All lights blinking together – Registration in progress.

Installation and User Manual

Manufacturer Product Website

 


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