|
|
|
|
SIGNAL | PIN# | PIN# | SIGNAL |
GND† | 7 | GND† | |
RCV- | 5 | XMT- | |
XMT+ | 6 | RCV+ | |
XMT- | 3 | RCV- | |
RCV+ | 4 | XMT+ | |
GND† | 2 | GND† |
5.0 OPERATION
Once you have configured each Model 1000RC and connected the
cables, you are ready to operate the units. Section 5.0 describes the LED status monitors and the
5.1 LED STATUS MONITORS
The Model 1000RC features thirteen front panel LEDs that indicate the condition of the modem and communication link. Figure 9 shows the positions of the LEDs and the bullets describe their functions.
†Connection to ground is optional
Model 1000RC | |
| Power |
| TD |
Unit | RD |
A | |
| CD |
| TD |
Unit |
|
B | RD |
| CD |
Figure 9. The Model 1000RC front panel, showing LED positions
•The green “PWR” LED glows when power is being applied to the modem card through its
•The “TD” and “RD” indicators blink red and green to show data activity. A solid red light indicates an idle state. Solid green is an “illegal” condition and typically indicates a problem in the system.
•If your carrier detect strap is configured as “Always On”, the “CD” light will always be green. If the carrier detect strap is set to “Normal”, the green LED lights when the receive carrier is detected; the red LED lights when the receive carrier is absent.
5.2POWER-UP
There is no power switch on the Model 1000RC: Power is automatically applied to the 1000RC when its
11 | 12 |