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Clare
/ Legerity FXO Evaluation Platform
Overview
The four-channel Foreign Exchange Office (FXO) evaluation board
from Legerity and Clare is a hardware evaluation platform for
system manufacturers that are developing their own central office
(CO), digital loop carrier (DLC) or customer premises equipment
(CPE) FXO systems, as well as addressing applications in computer
telephony, private branch exchange (PBX), router and telephony
gateway equipment. The demonstration board features highly integrated
solutions from Legerity and Clare to achieve significant board
real estate reduction while maintaining the highest level of performance
in telecom applications. It is the first board of its kind that
can be programmed through software to handle complex impedance
synthesis for virtually all world telecommunications markets.
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Key Features
- Provides
best-in-class FXO evaluation platform for PBX/telephony gateway
systems with fully programmable two-wire impedance capability
- A complete,
integrated board-level solution that easily demonstrates FXO
and mini-PBX functions
- Uses Le58LQ063
four-channel QLSLAC™ voice codec/filter from Legerity
- Uses silicon
Phone Line Interface (PLI) device (CPC5620 LITELINK III) from
Clare to replace bulky transformers and discrete devices to
achieve PC board density
- Legerity-Clare
voice IC evaluation platform features a QLSLAC motherboard,
PLI daughtercards and application development software
- QLSLAC
motherboard accommodates four PLI socket daughtercards for various
markets and applications
- Design
to be supported by the Legerity VoicePath™ script software
- PLI daughtercards
provide:
- Two-to-four
wire hybrid function, isolation, AC and DC termination
- Loop
Start (LS) operation; future boards will offer Ground Start
(GS) operation
- Pulse
dial operation in LS or GS modes
- Regulatory
surge protection networks
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