Constellation™
November 2003
11-26 Field-Replaceable
Units
High Level Mux
Figure 11-18:High Level Mux, front view
Removing the High Level Mux (HLM)
•
In a MHSB configuration, start with
•
In a nonprotected configuration, start with
In a nonprotected configuration, removing the
HLM is a service-affecting procedure.
1.
Use the Keypad command to
lock traffic
on to the HLM that is
not
being
removed. This step causes a minor alarm.
CONTROL > LOCK/IF LPBK > LOCK HLM, SET
2.
Use the 2 extractor tabs to unlock the HLM from the shelf.
3.
Carefully pull out the HLM from the shelf.
Extractor (2)
FAULT (red LED)
ON-LINE (green LED)
Summary of Contents for Constellation
Page 1: ...Point to Point Digital Radio Constellation Installation Maintenance...
Page 2: ......
Page 4: ...Constellation November 2003...
Page 18: ...Constellation November 2003 xii List of Figures...
Page 24: ...Constellation November 2003 xviii Preface...
Page 26: ...Constellation November 2003 xx Preface...
Page 96: ...Constellation November 2003 4 12 Loopback Testing...
Page 110: ...Constellation November 2003 5 14 Configuring the Constellation Radio...
Page 134: ...Constellation November 2003 7 14 SNMP Based Network Management...
Page 210: ...Constellation November 2003 11 36 Field Replaceable Units...
Page 238: ...Constellation November 2003 A 16 Wiring Specifications...
Page 260: ...Constellation November 2003 C 10 Hardware Compatibility Tables...
Page 276: ...Constellation November 2003 Glossary 6...
Page 291: ......