User's Manual

Front Panel Operation 3-26
DataNex EMS Wireless, DATA-20 Digital Radio
3.4.19.1 Typical Configuration
A typical installation of DATA-20 Digital Radios involves configuring each DATA-20 as either Data
Communications Equipment (DCE) or as Data Terminal Equipment (DCE), as illustrated below:
Telecom Equipment
Configured
as DTE
Rx Clock
Tx Clock
Configured
as DCE
Configured
as DTE
Repeater
(DCE coupled with a DTE)
Configured
as DCE
A DCE coupled together with a DTE enables the signal to be relayed to another DCE. This
configuration is called a Repeater. A network can consist of as many Repeaters as necessary.
The following sub-sections describe how to configure the DATA-20 a DCE or as a DTE.
3.4.19.2 DATA-20 as Data Communications Equipment (DCE)
By default, the DATA-20 is configured as Data Communications Equipment (DCE). In the mode,
the device recovers the transmitted clocks and effectively performs as a modem.