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LEDs
The Express XR/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.
Express XRT
LED
Color
B1 or B2
Slow Green Flash
Fast Green Flash
Off
Solid Green
Solid Amber
Amber Flash
PWR/Line Green (On Solid)
Off
Flashing
TD
Green
RD
Green
61200.153L1-13
TD
RD
Description
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.
Link established.
Calls can be placed.
No Power.
Link is not established.
Calls cannot be placed.
Transmit Data (TxD).
Received Data (RxD).
Express XR/XRT Quick Start Guide
Appendix B. LEDs
Appendix B
LEDs
B1
B2
PWR
TEST
LINE
Figure B-1
Front Panel LEDs
Table B-A
Express XR/XRT LEDs
6 3
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