JUMO 705043, Installation Instructions Manual, Page: 48 / 82

3 Electrical connection
20
3.4 Functional test
The voltage supply and the connection to the system bus must be tested on completion of the elec-
trical connection.
Voltage supply
Connection to system bus
The "Bus In" input must be connected to the "Bus Out" output of an upstream router module or to the
"LAN2" socket of the central processing unit 705003.
Startup
The check described above completes the process of installation and electrical connection. For the start-
up, the router module is integrated into the system through the definition of the hardware arrangement
in the setup program. The router module itself does not need to be configured (see operating manual of
the central processing unit).
LEDs at the RJ45 sockets
The LEDs indicate the status of the connection between the router module and the remote side.
NOTE!
The LED "S" (Status) indicates the system status and, if necessary, module-specific errors (depending
on the module). In normal operation it lights green (Run – Operational). For further information, refer to
the operating manual of the relevant module or central processing unit.
Signal Meaning
LED "P" (Power, green) is lit The router module is supplied with voltage.
LED "P" (Power, green) is not lit The router module is not supplied with voltage or
there is a problem with the electrical function of the
LED.
Remedy:
•
Check voltage supply at the "+24V" and "GND"
terminals of the router module.
• Check power supply unit and connection be-
tween the power supply unit and the router
module.
If the "P" (Power) LED does not light up despite a
voltage supply being present, the entire router
module must be replaced.
Green Orange Meaning Recommended action
Off Off No connection Check cabling and topology
On Off Connection with 10 Mbit/s
On On Connection with 100 Mbit/s
Flickering Off Connection with 10 Mbit/s and data
transfer
Flickering On Connection with 100 Mbit/s and data
transfer