GE 90-30 PLC Series Installation And Hardware Manual page 384

E
Installation
The Isolator is packaged in a contoured plastic enclosure designed for either direct attachment to a
serial port or through a 12" extender cable for panel mounted applications
secure the device to its mating connector. The device can be easily inserted into an existing
communication channel with no additional hardware
connected directly to a CPU module. Alternatively, the Isolator can be mounted separately from the
PLC system using the extender cable provided. For mounting separately to a panel, you will need
to provide two #6-32 (4 mm)mounting screws (Figure E-3).
When installing the Isolator, tighten the connector screws and panel mounting screws (if used) to
the following torque values:
Figure E-3. RS-485 Port Isolator in PLC Network
Figure E-4. Mounting Port Isolator to Panel
E-4 Series 90-30 PLC Installation and Hardware Manual – August 2002
Screws
Connector Thumbscrews (supplied with
Isolator)
Panel Mounting Screws (user-supplied)
PS CPU
PLC 1
RS-485 Port
4000 ft
SNP
Cable
PLC 2
In Figure E-2, the Isolator is shown
.
Type
M3 8 in./lbs. (0.9 Newton-meter)
#6/32 (4 mm) 12 in./lbs. (1.4 Newton-meters)
Isolator
PS
CPU
#6-32 (4 mm) screw
Multidrop Switch
TOP
VIEW
#6-32 (4 mm) screw
Two M3 thumbscrews
.
Torque
GFK-0356Q