Quick Start Guide
Package Contents
•One external USB ISDN TA with 2 analog ports
•One installation CD with drivers and utility software
•One CD with bundled application software programs (optional)
•One
•One USB cable
•One power adapter
•This Quick Start Guide
The Front Panel LEDs
MIC SPK
PWR RUN USB 
B1 B2 
1 
2 PC
LED | Meaning |
PWR | When lit, it indicates the power adapter is connected. |
RUN | Flashes periodically to indicate that the USB ISDN TA |
| is working properly. |
USB | When lit, it indicates the USB port is connected to the |
| PC. When flashing, it indicates the USB is on download |
| status. |
ISDN | When lit, it indicates that the ISDN S0 bus is activated. |
B1 | When lit, it indicates that the ISDN “B1” channel is |
| being accessed. It will flash during data transfer. |
B2 | When lit, it indicates that the ISDN “B2” channel is |
| being accessed. It will flash during data transfer. |
Phone 1 | When lit, it indicates that the analog device connected to |
| the Phone 1 port is in use. |
Phone 2 | When lit, it indicates that the analog device connected to |
| the Phone 2 port is in use. |
PC | When lit, it indicates that at least one application |
| program running on the PC is using the USB ISDN TA. |
1