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61200.153L1-13 Express XR/XRT Quick Start Guide 63
Appendix B. LEDs
Appendix B
LEDs
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.
TD RD
B1 B2
TEST
PWR
LINE
Express XRT
Figure B-1
Front Panel LEDs
Table B-A
Express XR/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 Loo
p
back
p
rotocol test
(
one or both channels
)
.
Amber Flash Remote test ori
g
inate.
PWR/Line Green (On Solid) Link established.
Calls can be placed.
Off No Power.
Flashing Link is not established.
Calls cannot be
p
laced.
TD Green Transmit Data (TxD).
RD Green Received Data (RxD).