Constellation™
2002 June 20
12-28
High Level 155 Mux (HLM-155)
Figure 12-16:HLM-155, front view
Removing the HLM-155
•
In a MHSB configuration, start with
•
In a nonprotected configuration, start with
In a nonprotected configuration, removing the
HLM-155 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.
Carefully disconnect the cables from the HLM-155.
3.
Use the 2 extractor tabs to unlock the HLM from the shelf.
4. Carefully pull out the HLM from the shelf.
Extractor (2)
FAULT (red LED)
ON-LINE (green LED)
OUT (SMB connector)
Extractor (2)
FAULT (red LED)
ON-LINE (green LED)
TX (fiber optic transceiver)
ELECTRICAL
OPTICAL
IN (SMB connector)
RX (fiber optic transceiver)
Содержание Constellation
Страница 1: ...Point to Point Digital Radio Constellation Installation Maintenance next level solutions ...
Страница 2: ......
Страница 3: ...Constellation Microwave Radio INSTALLATION AND MAINTENANCE MANUAL June 20 2002 IMN 112871 E07 ...
Страница 16: ...Constellation 2002 June 20 TOC 12 ...
Страница 20: ...Constellation 2002 June 20 2 ...
Страница 76: ...Constellation 2002 June 20 4 34 ...
Страница 100: ...Constellation 2002 June 20 6 12 NETWORK MANAGEMENT For NEWORK MANGEMENT configuration refer to Chapter 8 ...
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Страница 150: ...Constellation 2002 June 20 11 14 ...
Страница 186: ...Constellation 2002 June 20 12 36 ...
Страница 210: ...Constellation 2002 June 20 A 16 ...
Страница 236: ...Constellation 2002 June 10 F 2 ...
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Страница 248: ...Constellation 2002 June 20 G 6 ...
Страница 262: ...Constellation 2002 June 20 I 14 ...
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