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61200.153L1-13 Express XR/XRT Quick Start Guide 63

Appendix B. LEDs

Appendix B

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

back

rotocol test

(

one or both channels

)

Amber Flash Remote test ori

inate.

PWR/Line Green (On Solid) Link established.

Calls can be placed.

Off No Power.

Flashing Link is not established.

Calls cannot be

laced.

TD Green Transmit Data (TxD).

RD Green Received Data (RxD).

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