Network Installation; Network Wiring Guidelines; Terminating The Network - GE 90*-30 PLC Series User Manual

3

Network Installation

Network Wiring Guidelines

Terminating the Network

3-4
During normal operation, the network is the only external connection to the LBIM. The network
is connected to the Module by means of the two-pin removable header on the front panel.
The LBIM adheres to the L
the interface to the L W
ON
Junction Boxes:
A junction box is required to provide an interface between each L
the twisted pair cable. Depending on the topology, pass-through, stub, and local loop junction
boxes can be used. Echelon recommends Weidmüller BLZ (or equivalent) connectors and
receptacles for connections to junction boxes.
Cabling:
The network bus wiring should be 22 AWG (0.36 mm
18-24 AWG wiring with connection through a 5.08mm two-position screw terminal block. Either
2)
22 (0.36mm or 24 AWG (0.22mm
and the L W application node. (For an example wiring scheme, refer to Figure 3-3)
ON ORKS
Detailed recommendations for network cabling, junction boxes, and connectors can be found in
Junction Box and Wiring Guidelines for Twisted Pair L
Network termination is not provided by the LBIM. Termination must be provided by the network
as described in the LonWorks Transceiver User's Guide for the transceiver type used or
LONMARK Layers 1-6 Interoperability Guidelines (078-0014-01).
Junction Box
22 or 24 AWG (0.22mm ) 2
Stub
LonWorks
Application Node
Figure 3-3. Cabling for Bus and Loop Networks
Series 90™-30 PLC LONWORKS® Bus Interface Module User's Manual – June 1997
Layers 1—6 Interoperability Guidelines (078-0014-01) for
M
ON ARK
network.
ORKS
2
) cabling can be used on the stub between the junction box
W application node and
ON ORKS
2
) twisted pair wiring. The LBIM supports
®
W Networks (005-0023-01).
ON ORKS
22 AWG (0.36mm ) 2
Network Cabling
in the
GFK-1322A