Billion mini USB ISDN TA128

2.2 The Front Panel LEDs

LED

Meaning

USB

When this LED is lit, it indicates that the USB port

 

is connected to the PC and working properly.

 

 

ISDN

When this LED is lit, it indicates that the ISDN S0

 

bus is activated. It will flash when there is message

 

transfer in the D channel.

 

 

B1

When this LED is lit, it indicates that the ISDN B1

 

channel is being accessed. It will flash when there

 

is data transfer in the B1.

 

 

B2

When this LED is lit, it indicates that the ISDN B2

 

channel is being accessed. It will flash when there

 

is data transfer in the B2.

 

 

PC

When this LED is lit, it indicates that there is at least

 

one application program using the USB ISDN

 

TA128.

 

 

2.3Connecting the Billion mini USB ISDN TA128

Please refer to the following instructions and figure for installing the mini USB ISDN TA128:

1.Connect the ISDN S0 line to the RJ-45 jack.

2.Connect the USB cable to the USB port and connect the other end of USB cable to the PC. Refer to the following figure.

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Billion Electric Company user manual Front Panel LEDs, Connecting the Billion mini USB Isdn TA128