ABB ETL600 Instruction Manual page 15

ETL600
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Fig. 3-40
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Fig. 3-42
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Fig. 4-1
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Contents
1KHW001489-EN
Service phone ................................................................3-41
State of LEDs corresponding to internal E&M................3-42
State of LEDs showing to internal E&M when one PAX
is not working correctly ..................................................3-42
Transit filter cutoff frequencies selectable in steps of
60 Hz .............................................................................3-43
Transit connection ..........................................................3-44
MUX600 Block Diagram .................................................3-49
DPLC Channel Multiplexer Framing...............................3-50
Redundant protection of a dual-circuit line .....................3-63
Duplicated protection for a single-circuit line..................3-64
Examples for allocation of the 4 kHz band with speech
and the ETL600 pilot as NSD600 guard signal .............3-74
Examples for allocation of the 4 kHz band with speech
and an own NSD600 guard signal.................................3-74
Dual-tone principle .........................................................3-75
Input/output command handling parameters..................3-78
Communication via cable ...................................................4-3
Communication via phone modems ...................................4-5
Communication via intranet/internet...................................4-8
Communication via intranet/internet and phone modems
RS-485 station bus with R7AP .........................................4-11
Embedded operation channel ..........................................4-12
Chain of ETL600 links ......................................................4-12
Example of an element management network .................4-13
Data-Management, Data-Flow .........................................4-14
HMI600 compatibility relations .......................................4-16
Compatibility relations for HMI600 configuration files ....4-17
Signal levels from AF terminal to RF terminal ..................5-19
Data in relation to clock signal..........................................5-25
Front view of the ETL640 equipment equipped with
interfaces O4LE (slots N11 and N22), G4AI (slots N28
and N71)..........................................................................6-7
Front view of ETL640 mounted in a cabinet type E40A .....6-8
ETL640 equipment rear view .............................................6-8
Front view of ETL680 mounted in a cabinet type E40A .....6-9
ETL680 equipment rear view .............................................6-9
ABB Switzerland Ltd
November 2005
..4-9
XI