User guide
CTI Products, Inc. SLM SiteLync
TM
User Guide
Appendix A. SLTALink Manager and NSI Mode 10
APPENDIX
APPENDIX A. SLTALINK MANAGER AND NSI MODE
Host Applications using the LNS platform (such as LonMaker for Windows and
Windows DDE Server) require the SLM SiteLync to be used in NSI mode, along
with the SLTALink Manager. The SLTALink Manager provides a Windows 32-
bit driver and a user interface for controlling the connection through an SLM
SiteLync network modem in NSI mode and for diagnosing connection problems.
It can monitor a modem line, answer an incoming call, associate the incoming
call’s SLM SiteLync (and hence its network) with a LonTalk node, and then
launch a pre-determined application for that particular network or SLM SiteLync.
Parameters such as local/remote connection, dialing preferences (area code,
access number, tone/pulse dialing, calling card dialing), monitoring for dial-in,
and link associations (to an application during dial-in) can be altered. The
SLTALink Manager enables a LonWorks network to establish a connection to a
host PC based on an event that occurs in the remote network (such as an alarm
condition). Refer to Technical Note TN031 to learn more about these advanced
SLM SiteLync and SLTALink Manager features.
DOS and 16-bit Windows LonManager API applications (such as Lonmaker for
DOS and Nodeutil) can make use of the SLM SiteLync in NSI mode via the
SLTALink Manager driver through the ldvvdd.sys (Windows 9x) or pcltdos.sys
(Windows NT) virtual device drivers. If the NSI mode driver installation was
performed as described in STEP 1 of the “SETUP AND OPERATION” section, the
driver was loaded onto the host PC, and a device driver line was added to the
config.sys file similar to one of the following:
Windows 9x (config.sys file)
device=c:\progra~1\ctipro~1\slm\ldvvdd.sys /D1 /V”LonSLTA”
Windows NT (config.nt file)
device = %systemroot%\system32\pcltdos.sys /D1
Figure 7 shows a typical host PC configuration when using SLTALink Manager
in an LNS application. The host PC configuration would be the same if
connected to a local SLTA SiteLync used as a Network Services Interface in NSI
mode.