Specifications

Niagara Release 2.3
Revised: May 22, 2002 Niagara Networking & Connectivity Guide
Chapter 4 Connecting with Direct Dial
Configuring Direct Dial on the JACE-4/5
4–12
Tip Attaching a PC to COM1 requires a null modem cable. If you attach the
modem to COM2 you will not have to re-cable if you ever need to access the
JACE through COM1 (For instance, if you use Hyperterminal. For details, see
the “Hyperterminal” section on page 2-7).
JACE-4
For a JACE-4, you need to use an 8-wire flat silver satin stranded cable with RJ-45
connectors on both ends. Connect this cable to an adapter that converts RJ-45 to
DB-9 and has been pinned out to our specifications. Connect this adapter to a
standard DB-9 female to DB-25 male adapter (or adapter cable) and connect that to
the modem.
For more information about connecting DCE devices to our DTE serial ports
(including how to pin out the RJ-45 to DB-9 adapter), see the “About Serial and Null
Modem Cables and Adapters” section on page 2-12.
Configuring the Software
Configuring the software is a two step process. First, you use the Admin Tool to edit
the ras.properties file. Then you use the Admin Tool to enable dial-in for those users
who are allowed to dial into the JACE.
About the
ras.properties
File
The ras.properties file is used to both configure modems and enable the direct dial
function on the JACE-4/5. RAS stands for remote access service. Each parameter in
this text file is listed on a separate line with an equal sign (=) followed by a value
(<parameter>=<value>). Parameters can be preceded by the # sign, which disables
(comments out) the parameter. You can remove the # to enable the parameter.
Example 4-1 shows the typical format of these parameters.
Example 4-1 Parameter format in ras.properties file.
rasEnable=false
rasMode=directDial
#dialOutOnly=false
Options in this file that effect direct dial are listed in Table 4-1, along with valid and
default values, and a description.