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ABB Switzerland Ltd 1KHW001489-EN ETL600

List of Figures

Fig. 3-1 ETL600 with a wide range of services................................3-2

Fig. 3-2 Adjacent (a) and non-adjacent (b) frequency bands ..........3-2

Fig. 3-3 Use of nominal frequency band for pure APLC (a), pure

DPLC (b) or mixed APLC/DPLC (c) operation in

ETL600 erect mode

.........................................................3-4

Fig. 3-4 Use of nominal frequency band for pure APLC (a), pure

DPLC (b) or mixed APLC/DPLC (c) operation in

ETL600 inverted mode

....................................................3-6

Fig. 3-5 Typical frequency allocation in a 4 kHz AF channel...........3-7

Fig. 3-6 Use of ETL bandwidth for a 4 kHz AF channel ..................3-8

Fig. 3-7 Use of ETL bandwidth for a 3.2 kHz AF channel ...............3-9

Fig. 3-8 Use of ETL bandwidth for a 2.4 kHz AF channel .............3-10

Fig. 3-9 ETL640/680 configurations ..............................................3-12

Fig. 3-10 Functional block diagram ETL640 with Rx filter .............3-13

Fig. 3-11 Functional block diagram ETL640 without Rx filter ........3-14

Fig. 3-12 Functional block diagram ETL680..................................3-15

Fig. 3-13 Frontplate O4LE .............................................................3-19

Fig. 3-14 Frontplate G4AI ..............................................................3-22

Fig. 3-15 Frontplate P4LT..............................................................3-24

Fig. 3-16 Frontplate P4LU .............................................................3-26

Fig. 3-17 R1BC Block Diagram .....................................................3-28

Fig. 3-18 P1LA Block Diagram ......................................................3-30

Fig. 3-19 E5TX block diagram .......................................................3-31

Fig. 3-20 80 W RF front end with combiner...................................3-31

Fig. 3-21 P3LG block diagram.......................................................3-32

Fig. 3-22 Block diagram RF hybrid P3LE ......................................3-33

Fig. 3-23 The two possible topologies of the RF front end ............3-34

Fig. 3-24 Block diagram of the Rx filter P4RX ...............................3-35

Fig. 3-25 Block diagram of P7LA equipped with B5LA, E5TX,

P1LA, P3LE

...................................................................3-37

Fig. 3-26 Point to point hot line......................................................3-38

Fig. 3-27 2-wire remote subscriber................................................3-39

Fig. 3-28 4-wire remote subscriber................................................3-39

Fig. 3-29 4-wire PAX connection with E&M...................................3-40

Fig. 3-30 2/4-wire PAX connection with E&M and hybrid control ..3-40

X November 2005 Contents

ABB ETL600 User Manual

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