SYSTEM DESCRIPTION AND INSTALLATION MANUAL
HS--600 High Speed Data System
23--20--31
30 May 2002
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Page 1--11
(4) Table 1-14 gives a description of the HSU front panel lights during various HSU
conditions. The PUSH TO TEST switch on the front panel of the HSU is not
operational.
Table 1-14. HSU Front Panel Light Description
Condition
Description
Power Up
Both PASS and FAIL lights are on steady.
Software Boot Complete
Both PASS and FAIL lights are off. The lights should go off within 30
seconds of power up.
Receiver Activity
If the SDU is logged on, the HS--600 is able to pick an LES to listen to,
similar to the P--channel for the MCS. Once the receiver synchronizes on
this time division multiplex (TDM) channel, the green PASS light flashes.
The light flashes for each correctly received signal unit (SU). This should
occur within 2 minutes of power up, if the SDU is logged on, or within 30
seconds after the SDU log--on, if beyond the initial 2 minutes.
Since the flash rate is related to the received SUs, the rate varies as time
goes on; it could even stop flashing with the light on or off. However, during
an HSD call, SUs are received at a high rate, so the green PASS light will
flash rapidly, appearing to be almost steady on.
Failure
The FAIL light will be on if any error occurs.
Summary of Contents for HS-600
Page 15: ...CONTENTS ...
Page 22: ...INTRODUCTION ...
Page 27: ...SYSTEMS DESCRIPTION AND OPERATION ...
Page 42: ...MECHANICAL INSTALLATION ...
Page 52: ...ELECTRICAL INSTALLATION ...
Page 64: ...INSTALLATION CHECK ...
Page 69: ...ADJUSTMENT TEST ...
Page 78: ...FAULT ISOLATION ...
Page 81: ...MAINTENANCE PRACTICES ...
Page 86: ...APPENDIX A ...
Page 97: ...APPENDIX B ...