Fieldbus Connector - Endress+Hauser iTEMP TMT 165 FOUNDATION Fieldbus Betriebsanleitung

FOUNDATION Fieldbus temperature transmitter
!
Endress+Hauser
Note!
– The terminals for the fieldbus connection have an integral polarity
protection. This ensures correct signal transmission via the fieldbus even if lines
are confused.
– Conductor cross-section: max. 2.5 mm
4. Screw the cover of the connection compartment firmly onto the transmitter housing.

4.2.2 Fieldbus connector

The connection technology of FOUNDATION Fieldbus allows measuring devices to be
connected to the fieldbus via uniform mechanical connections such as T-boxes,
junction boxes, etc. This connection technology using prefabricated distribution
modules and plug-in connectors offers significant advantages over conventional wiring:
• Field devices can be removed, replaced or added at any time during normal
operation. There is no interruption of bus communication.
• This simplifies installation and maintenance significantly.
• Existing cable infrastructures can be used and expanded instantly, e.g. when
constructing new star distributors using 4-channel or 8-channel junction boxes.
The TMT 165 can therefore be supplied with a ready-mounted fieldbus connector.
Fieldbus connectors for retrofitting can be ordered from E+H as a spare part (see
page 103).
Fig. 4-3 FOUNDATION Fieldbus connector
A= protective cover for the connector
B = Fieldbus connector
C = PG 13.5 / M 20.5 adapter
Pin assignment/colour coding
1 = Blue core: FF–
2 = Brown core: FF+
3 = Not used
4 = Green/yellow core: Ground (connection notes → page 90)
Technical data (connector):
– IP 67 ingress protection
– Ambient temperature: –40 to +150 °C
2
4 Wiring
91