INTELLIGUARD 9000™
31 74-3047—1
Point-to-Point
When onl
two devices are connected to a line point-to-point
application, each device should have the termination network
connected to the line. Set switch S2 to the TERM position.
Multipoint
For multipoint applications, switch S2 should be in the
UNTERM position on all the RS-232 to 485/422 Converter
devices in the network except for the units at extreme
opposite locations on the line. The extreme opposite devices
are the two devices that have the lon
est cable len
th
between them, not necessaril
the devices that are ph
sicall
located the farthest apart. These units should be set to the
TERM position. If other RS-232 to 485/422 Converters are
confi
ured as
Terminating
, the amount of distortion could
increase—possibl
causin
errors in the data transmitted.
Normal/Loopback Operation
The Normal/Loopback switch S1 is a two position pushbutton
switch extendin
throu
h the front panel. The normal position
permits normal operation of the RS-232 to 485/442 Converter.
The Loopback position allows data comin
into the RS-232 to
485/422 Converter to be sent out the same port. This is to test
the connection between the RS-232 to 485/422 Converter and
the devices attached to each port.
NORMAL
When this switch is in the normal mode, data is passed
throu
h the converter from the RS-232 port to the RS-485 port
and vice versa.
LOOPBACK
When set to the loopback mode, an
data received at the RS-
485 is transmitted back out the RS-485 port and an
data
received at the RS-232 is transmitted back out the RS-232
port. This feature is onl
available in 4-WIRE mode.
RS-485 Interface Line Biased (Fail Safe)
If S3 is in the OFF position, there is no line bias. If S3 is in the
ON position, there is line bias. Either an end device or the two
extreme opposite devices on the network should have the RS-
485 interface set to bias ON. The extreme opposite devices
have the lon
est cable len
th between them, not necessaril
the devices that are ph
sicall
located the farthest apart. This
applies whether the confi
uration is point-to-point or
multipoint. In multipoint confi
urations all other devices should
have the bias turned off.
XSM/LINCNET
See Table 4 for XSM/LincNet settin
s.
Table 4. XSM/LincNet Settings.
Designation Shunt/Jumper
Position Description
XWIB DCE
W8 B-C 2-Wire
W15 B-C Data Enabled
W5 B-C RTS/CTS/CD DELAY
CTS initiated if CD is
present when RTS is
raised.
W9 C 0 ms
W17 E 0.15 ms
W16 B 0.1 ms
S1 OUT
S2 ON
S3 ON
25 PIN M/F Strai
ht throu
h cable
LINCNET INI Setup (V5.04.03)
Under the headin
, add the followin
lines:
XSM
XSMtimeout=15
Quickbuild Channel Setup
Set Connect
Timeout to 20
Set Read Timeout
to 10
Windows Registry
Set connect time to
20
Set HostName to
LocalHost
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