Specifications

Cascade Modem Manual
Copyright © 2007 Diamond Traffic Products, Inc
Page 5
1.3. Status Indicator LED
The single tri color LED (Light Emitting Diode) on the modem indicates the modems current status. The following
chart can be used to determine the modem status from the LED blinking pattern:
LED
Mode
Explanation
Solid green
3 seconds
Power Up
During initial power on or when modem wakes up from standby mode.
LED is on for 3 seconds and modem will be ready to operate at the end of
this time and will enter Active Mode.
Slow green
blinking
Active
If a line is detected the modem will blink green slowly until entering
sleep mode
Slow red
blinking
Active, No
Carrier
Modem is on and waiting for a Carrier Detect. It fully responds to
commands from the device connected to it. After 5 minutes of no Rings
or Character transmissions, modem will enter the standby (low power)
mode.
8 second
green blink
Sleep
With Carrier
Modem has gone into low power mode. When a ring or transmission is
detected, modem will power back on into Active mode.
8 second
red blink
Sleep, No
Carrier
Modem has gone into low power mode. When a transmission is detected
from the serial port, modem will power back on into Active mode.
Fast yellow
blinking
Ring Detected
When telephone line is ringing, the led will fast blink to indicate each
ring.
Solid Green
Line Connect
A connection has been made to a remote modem. Modem is on and fully
functional. After 5 minutes of no Rings or character transmissions,
modem leaves this mode and enters standby mode. If carrier is lost,
modem goes into Active-No Carrier mode (slow green continuous
blinks).
Other Non-Standard or Error Modes:
2 blinks,
pause,
repeat
Active, Carrier
Forced On
This mode indicates that the modem powered on and Carrier Detect went
immediately active. This normally happens if the modem has not been
properly initialized with the &C1 command. In this state, the connected
device has no way of determining when an actual connection has been
made to the modem by a remote device.