ISDN-oriented Modular Interface: Difference between revisions

Revision as of 10:13, 23 April 2009

Revision as of 23:45, 20 August 2010

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IOM is a system architecture and its bus for communication between various [[VLSI]] [[IC]]s for the lower layers (ref. [[OSI_modelOSI model]]) of [[ISDN]]. It was developed by [[Siemens]] (today: [[Infineon]]), current revision is IOM-2. Its purpose is to enable modularity. Second sources are [[AMD]], [[Alcatel]], [[Plessey]].

IOM-2 is a 4-wire serial, full-duplex link. 2 operation modes are available: line card mode and terminal mode; which differ only in number and purpose of the channels. Signals are:

* DCL (data clock, 16kHz16 kHz * N, where N = number of channels)

* FSC (frame sync, 8kHz8 kHz)

* DU (data upstream)

* DD (data downstream)

* {{Cite book| year=1991 | title=ICs for Communications, IOM–2 Internal Reference Guide | publisher=Siemens AG}}

* {{Cite book| year=1994 | title=ICs for Communications, ISDN Subscriber Access Controller for Terminals, ISAC–STE, PSB2186 User’s Manual | publisher=Siemens AG}}

* {{Cite book| last=Georg | first=Otfried | year=2000 | title=Telekommunikationstechnik | publisher=Springer | ISBN= 3540668454, 9783540668459 }} (in German, p.  278ff give an overview and some application examples)

{{Uncategorized|date=August 2010}}