complete telephone line interface circuit, including a 2-4
wire converter for transmit and receive signal separation
in a small 1.07" x 1.07" x 0.4" package. The module pro-
vides a fast and cost effective solution for designs that
require an interface to the telephone line. The module is
designed to meet FCC part 68 requirements thus provid-
ing a low risk design solution.
Applications
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Modems
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Fax machines
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Remote data acquisition
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Security systems
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Voice mail systems
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PC motherboard
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Computer telephony
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Process control
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Medical
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PBX
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Direct broadcast satellite
Approvals
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UL recognized file #: E174201
Ordering Information
Part #
CYG2217
Description
DAA Module (18/Tube)
Block Diagram
XMIT+
2 to 4
Wire
Converter
RCV
OH
Line
Transformer
Line
Current
Circuit
Surge
Protection
TIP
RING
Hookswitch
RI
Ring
Detect
Handling and Assembly Recommendations
The CYG2217 products are not hermetically sealed and should not be exposed to any liquid-based rinsing processes. Clare recommends two (2) approaches. The
modem should either use a no clean soldering flux that would mostly evaporate during the normal wave soldering processes, or be soldered in by hand after the rest of
1
2
3
4
