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Issue 4 October 2002 47555-233-116
4
Data modules and asynchronous data
units
Data modules connect peripheral equipment to the Avaya Media Server or
Gateway or the Avaya S8100 Media Server with a CMC1 Media Gateway
(DEFINITY ONE). Data modules convert between the RS-232 communications
protocol used by peripherals and the digital communications protocol (DCP).
Possible peripherals include AUDIX adjunct equipment and terminals, serial
printers, customer-supplied terminals and host computers, call detail recording
(CDR) devices, and pooled modems.
NOTE:
Data modules, PGATE boards, printers connected through data modules,
SATs connected through data modules, and anything related to the X.25
connectivity protocol are not supported on the S8300 or S8700 Media
Server platforms.
The following data modules are described in this chapter, and Figure 10 shows
typical data-module connections.
■ 7400A/B/C/D
■ 8400B
■ ExpressRoute 1000
■ Asynchronous data units (ADU).
NOTE:
ISDN data modules, such as the 7500B, are not covered in this book. Refer
to Integrated Services Digital Network (ISDN) 7500B Data Module User’s
Manual, for detailed procedures. ISDN data modules connects DTE and
DCE equipment to the ISDN network using an RS-232 or V.35 interface and
an RS-377 automatic calling unit.