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Subject: CMX865A: Addressing SIA Protocols with the CMX865A
Security alarm panels are used around the world as a cost-effective means of protecting people and property. The Security Industry Association (SIA)1, a trade organization that represents security market companies, has developed protocols that describe the communications link used by these panels. DTMF tones, pulsed tones, and frequency-shift keying (FSK) are common signaling methods used throughout these SIA protocols.
The CMX865A low-power wireline modem can be easily configured to perform these SIA protocols
making it attractive for security panel applications.
The purpose of this document is to describe how the CMX865A can be made to perform SIA
communication protocols.
[application note link].
Subject: CMX865A: Motorola MC145443 to CMX865A Migration
Security alarm panels are used around the world as a cost-effective means of protecting people and property. The Security Industry Association (SIA)1, a trade organization that represents security market companies, has developed protocols that describe the communications link used by these panels. DTMF tones, pulsed tones, and frequency-shift keying (FSK) are common signaling methods used throughout these SIA protocols.
The CMX865A 1200bps/300bps modem IC can easily be made to replace the MC145443 for
customers who wish to support legacy designs with a minimal amount of redesign effort.
The purpose of this application note is to describe how the CMX865A can be made to replace
the MC145443 IC.
[application note link].
Subject: CMX865A: CMX865A Employed in Short Local Loops (SLL)
Fixed wireless terminals, also known as wireless local loops, provide a simple means of interfacing existing POTS
devices, like telephones or fax machines, to cellular networks.
To achieve this simple connection, the terminal must regenerate a POTS line locally: the short local loop.
Because this loop is very short and does not extend beyond the premises, the driving and signalling requirements are
relatively simple.
The CMX865A low-power wireline modem can be easily configured to perform these SIA protocols making it attractive
for security panel applications. The purpose of this document is to describe how the CMX865A can be made to perform
SIA communication protocols.
[application note link].
Subject: Short Message Service (SMS) Implementation using CML Products
This document aims to assist modem product designers using and understanding Short Message Service (SMS)
applications.
CML Microcircuits' (CML) integrated circuit devices (CMX85x and CMX86x) could be used to realize and achieve a Caller
Line Identification (CLI), SMS or Low Rate Messaging Service (LRMS) data transfer
within a wireline system.
[application note link].
Subject: CLI with the CMX860, CMX865, CMX867 and CMX868
Caller Line ID (CLI) was originally developed for the US market but has become commonplace throughout the
World because of its multitudinous applications.
There are a number of CLI protocols to which telephone equipment manufacturers must comply.
This document gives an overview of two types; BELL GR-30-CORE/SR-TSV-002476 (or ETSI 300 659-1 section 6.1.1)
used in the USA and most of the world and Caller Line Identification Presentation (CLIP) BT SIN 227
(or ETSI ETS 300 659-1 section 6.1.2c) used in the UK.
[application note link].
Subject: CMX86x and CMX850 Filter Coefficient Generator Program
This application comprises the Filter Coefficient Generator program as an Excel spreadsheet.
[application program link].
Subject: Recommendations for V.23 1200/75 b/s duplex call set-up
V.23 recommendations do not describe how a connection is established; a procedure is described below and
illustrated in Figure 1; however you should not rely on other modems following this particular flow.
Note also that 1200/1200 bps half-duplex connections are not covered by this application note.
[application note link].
Subject: Direct Access Arrangement Designs
An HTML library of simple explanatory DAA reference designs.
[application program link].