Display, Operating, And Connection Elements; Interfaces - JUMO variTRON 300 Installation Instructions Manual

3.3.1

Display, operating, and connection elements

This overview shows the position of the display, operating, and connection elements. The assignment to
individual functions is illustrated in the following sections.
3.3.2

Interfaces

Connection Designa-
tion
Antenna
(optional)
Ethernet LAN1,
LAN2
USB host USB
Serial interface COM
RS485
(8)
(7)
(6)
(1) Antenna connector
(2) Display
(3) Control elements
(4) Voltage supply DC 24 V
(5) Interface LAN2
(6) Interface LAN1
(7) USB host interface
(8) RS485 interface
(9) Switches for terminating resistors (RS485), inside the housing
Num- Connection element
ber
(1) SMA socket
(6),
(5)
(7) USB socket type A
(8) Terminal strip 2-pole
3 Electrical connection
(9)
Assignment
1 TX+
2 TX-
3 RX+
6 RX-
1 TxD+/RxD+
2 TxD-/RxD-
(1) (1)
(2)
(3)
(4)
(5)
Transmission data +
Transmission data -
Received data +
Received data -
Transmission/received data +
Transmission/received data -
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