Internal And 130-Modem Support; Internal Modem And The Rt630; Operating The Modem - Reftek 130-SMHR/9 User Manual

Rev A REF TEK 130-SMHR/9 Users Guide 5/6/2021
98060-00-UG

4 Internal and 130-Modem support

Internal modem and the RT630

This section explains using a modem with the REF TEK 130-SMHR/9. A user should be familiar
with whatever REF TEK host system is in current use. Documents for other REF TEK products are
available on request.
The SLM2456 modem module is used as the internal modem for the 130-SMHR/9. The SLM2456
is a complete, modem module that is based on the Si2456 chipset. The Si2456 is an ITU-V.90
compliant, 56 kbps modem chipset with integrated direct access arrangement (also called DAA it
includes parallel phone detect, over-current detection and global PTT compliance). This provides
a programmable line interface to meet global telephone line requirements. It is a single design
that includes a DSP data pump, a modem controller, on-chip RAM and ROM, an analog front end
(AFE) a DAA, and analog output.
Note: The 130-8279 modem cable is used with the 130-MC when supplied with an internal modem.

Operating the Modem

This section provides general procedures for setting up and operating the REF TEK 130-SMHR/9
with a modem
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