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Article #816

Question on Layer1-Layer2 Interface

#816
From: Moellers
Date: Mon, 29 Oct 1990 08:44
30 lines
1619 bytes
Hi,
I've tried to post this before, but either the message didn't make ist
out or nobody answered B-{(

ISO/IEC DIS 10022 describes the "Physical service definition", i.e. the
interface between Layer 1 and Layer 2.
It describes the interface in terms of primitives:
- Activation
- Data Transfer
- Deactivation
One of the activation primitives (Ph-ACTIVATE request) is used to
establish a connection between two PhC endpoints.
When one uses a modem with dialing protocol V.25bis or an X.25
connection, the connection establishment phase uses a different
configuration on the "control lines" while dialing.

Questions:
1. Is this dialing part of ISO layer 1 (physical layer)?
   In my opinion, it is.
2. How do I specify the address/numbers to use?
   DIS 10022 only says that parameters to the activation primitives
   concern the classes of service, but no mentioning of any dialing
   parameters.


--
| Josef Moellers		| c/o Siemens Nixdorf Informatonssysteme AG |
|  USA: mollers.pad@nixdorf.com	| Abt. PXD-S14				    |
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From: josef@nixdorf.de (Moellers)
Newsgroups: comp.protocols.iso
Subject: Question on Layer1-Layer2 Interface
Summary: How to specify addresses in ISO/IEC DIS 10022
Keywords: ISO/IEC10022 Layer1/Layer2 Interface
Message-ID: <josef.657189877@peun11>
Date: 29 Oct 90 08:44:37 GMT
Sender: news@nixpbe.nixdorf.de
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