Appendix B

LEDs

LEDs

The Express XRT front panel contains five LEDs associated with the DTE port and the ISDN interface as shown in Figure B-1 and described in Table B-A.

TD

RD

B1

B2

PWR

Express XRT

 

TEST

 

LINE

 

 

Figure B-1

 

 

Front Panel LEDs

 

 

Table B-A

 

 

Express XRT LEDs

 

 

 

LED

Color

Description

 

 

 

B1 or B2

Slow Green Flash

Attempting SPID registration.

 

Fast Green Flash

Attempting TEI registration.

 

Off

Ready. No data traffic.

 

Solid Green

B Channel passing data (in use).

 

Solid Amber

Loopback protocol test (one or both

 

 

channels).

 

Amber Flash

Remote test originate.

 

 

 

61202.153L3-1

Express XRT User Guide

71

Page 85
Image 85
ADTRAN manual Appendix B LEDs, Front Panel LEDs, Table B-A, Express XRT LEDs