eLine ELC-576ET, Manual, Page: 4 / 43

2 H
ARDWARE
I
NSTALLATION
2.1 Connection Diagram
The serial products of the external modems distinguish each other with voice function and phone jack.
The Diagram below illustrates the typical external modem connection:
2.2 LED Indicators
After hardware installation, turn on the modem and your PC, the PWR, HS, and MR LEDs
should be lit. The description of the LED indicators on the front panel are listed below: (from
left to right
MR
Modem Ready/ Self-
testing On: Power on
Flash: Self-testing/ In diagnostic mode
HS High Speed Speeds
On: Operating speed at 24000bps or higher
CD Carrier Detect
On: Receiving a data carrier signal from remote modem
OH Off Hook
On: Modem off hook
OFF: Modem on hook
SD
Send Data
Flash: Transferring data from the modem
RD Receive Data
Flash: Receiving data from the modem
TR Terminal Ready
ON: Modem is on (unless setup by AT commands)
AA Auto-answer
On: Set up to answer incoming calls
PWR Power ON: power on