Display and Control Elements
INSYS Modem 56k small EU 2.1
12
5
Display and Control Elements
Figure 1: LEDs on the front panel
Position
Description
1 Power/RX/TX
LED
2
OH/DCD-LED (Off Hook / Data Carrier Detect)
Table 1: Description of the LEDs on the front panel of the device
5.1
Meaning of the Displays
Description
Display
Meaning
Power/RX/TX LED
LED on (green)
Supply voltage available
LED off
No supply voltage
LED blinking (orange)
Data is transmitted
OH/DCD LED
LED on (green)
Modem is hooked to the
phone line and online.
LED off
Modem is not hooked to
the phone line and offline.
LED on (red)
Modem is offline, DCD line
is permanently active.
Table 2: Meaning of the LED displays
