
S-Access GmbH tel: +41 1 700 3111
Oberhausenstrasse 47 fax: +41 1 700 3103
8907 Wettswil a/A
2nd edition – January 2002
1 Introduction.......................................................................................................................... 3
2 SDH Optical multiplexers.................................................................................................... 4
3 Applications ......................................................................................................................... 6
3.1 Advantages .................................................................................................................................... 6
3.2 Fiber optic access network ............................................................................................................ 7
3.3 Private network .............................................................................................................................. 7
3.4 Campus network and private network ........................................................................................... 8
3.5 Public utility company networks ................................................................................................... 10
3.6 SDH access links ......................................................................................................................... 11
4 Functional description ...................................................................................................... 12
4.1 Architecture .................................................................................................................................. 12
4.2 Standard configurations ............................................................................................................... 14
4.3 Basic module................................................................................................................................ 15
4.4 Optical or electrical stm1/4 interface............................................................................................ 17
4.5 Lan interface ................................................................................................................................ 19
4.6 21 x E1 access............................................................................................................................. 21
4.7 1 x E3/DS3 access....................................................................................................................... 21
5 Optical engineering ........................................................................................................... 22
5.1 Optical link budget........................................................................................................................ 22
6 Installation.......................................................................................................................... 23
6.1 Mechanical installation................................................................................................................. 23
6.2 Wiring ........................................................................................................................................... 24
7 Supervision/maintenance ................................................................................................. 25
7.1 Supervision .................................................................................................................................. 25
7.2 Maintenance................................................................................................................................. 29
8 Specifications .................................................................................................................... 31
8.1 Electrical and optical specifications ............................................................................................. 31
8.2 Supervisory interfaces ................................................................................................................. 32
8.3 Mechanical specifications ............................................................................................................ 32
8.4 Power supply................................................................................................................................ 32
8.5 Power consumption...................................................................................................................... 32
8.6 Environmental conditions............................................................................................................. 32
8.7 Guaranteed attenuation (*) .......................................................................................................... 33
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