Service manual

8575

A N/B Maintenance

The PCT2303W chipset is designed to meet the demand of this emerging worldwide AMR/MDC market. The

combination of PC-TEL’s well proven PCT2303W chipset and the HSP56TM MR software modem driver

allows systems manufactures to implement modem functions in PCs at a lower bill of materials (BOM) while

maintaining higher system performance.

1.2.8 MDC: PCTel Modem Daughter Card PCT2303W

PC-TEL has streamlined the traditional modem into the Host Signal Processing (HSP) solution. Operating

with the Pentium class processors, HSP becomes part of the host computer’s system software. It requires less

power to operate and less physical space than standard modem solutions. PC-TEL’s HSP modem is an easily

integrated, cost-effective communications solution that is flexible enough to carry you into the future.

The PCT2303W chip set is an integrated direct access arrangement (DAA) and Codec that provides a

programmable line interface to meet international telephone line requirements. The PCT2303W chip set is

available in two 16-pin small outline packages (AC’97 interface on PCT303A and phone-line interface on

PCT303W). The chip set eliminates the need for an AFE, an isolation transformer, relays, opto-isolators, and

2-to 4-wire hybrid. The PCT2303W chip set dramatically reduces the number of discrete components and cost

required to achieve compliance with international regulatory requirements. The PCT2303W complies with

AC’97 Interface specification Rev. 2.1.