61202.153L3-1
Express XRT User Guide
71
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.
Figure B-1
Front Panel LEDs
Table B-A
Express XRT LEDs
LED
Color
Description
B1 or B2
Slow Green Flash
Fast Green Flash
Off
Solid Green
Solid Amber
Amber Flash
Attempting SPID registration.
Attempting TEI registration.
Ready. No data traffic.
B Channel passing data (in use).
Loopback protocol test (one or both
channels).
Remote test originate.
TD
RD
B1
B2
TEST
PWR
LINE
Express XRT
Summary of Contents for Express XRT
Page 10: ......
Page 18: ...Chapter 1 Overview 4 Express XRT User Guide 61202 153L3 1...
Page 62: ...Chapter 4 Application Configuration 48 Express XRT User Guide 61202 153L3 1...
Page 84: ...Appendix A AT Commands and S Registers 70 Express XRT User Guide 61202 153L3 1...
Page 100: ...Appendix D Loop Status Messages 86 Express XRT User Guide 61202 153L3 1...