| The Modems LED's |
| Modem Light | Meaning |
AA
(auto answer) |
The modem is ready to respond to an incoming call (assuming a communication program is also ready to handle the call). Since this light can be off even when the modem is ready, it's not useful. |
CD
(carrier detect) |
This simply indicates that the computer and the modem have recognized each other and that a carrier connection is established. If a second call is received, carrier detect may be temporarily interrupted and, depending on a number of factors, the first connection may be dropped or lost. |
HS
(high speed) |
If on, indicates that the modem is ready to transfer data at its highest speed. Since this is often the case, this light is also not very useful. |
MR
(modem ready) |
If on, indicates that your modem is ready to operate. |
OH
(off hook) |
If on, tells you that the phone line is ready for use. |
RD
(receive data) |
When flashing on, indicates that the modem is receiving data or signals from a remote computer. |
SD
(send data) |
When flashing on, indicates that the modem is sending data or signals to another computer. |
TR
(terminal ready) |
When on, indicates that your computer's communications program is active. If it's not on, either the program or your computer may not be working. |
