Hirschmann RS20 User Manual page 266

Note: Do not operate the OCTOPUS ...PoE... devices in line. Only connect
external power supply units each to one OCTOPUS ...PoE... device directly.
Pin assignment of the M12 connector
Pin Function
+ 48V DC (1)
+ 48V DC (2)
Fig. 3: Connection of the PoE supply voltage and the signal contact
Signal contact
U
D
The signal contact ("FAULT", pin assignment of the connector
"Connection of the 24V supply voltage and signal contact" on page 13
or "Connection of the PoE supply voltage and the signal contact" on
page 14) monitors proper functioning of the device, thus enabling
remote diagnostics. You can specify the type of function monitoring in
the Management.
D
You can also use the Management to switch the signal contact
manually and thus control external devices.
A break in contact is reported via the potential-free signal contact (relay
contact, closed circuit):
D
The failure of at least one of the two supply voltages.
D
A continuous malfunction in the device (internal voltage supply).
D
The defective link status of at least one port. With the device, the indi-
cation of link status can be masked by the management for each port.
Link status is not monitored in the delivery condition.
D
The loss of Redundancy guarantee.
D
Error during self-test.
D
Incorrect configuration of the HIPER-Ring or ring coupling.
The following condition is reported in RM mode additionally:
D
Ring redundancy guaranteed. Ring redundancy is not monitored in the
delivery condition.
V Connect the power supply and signal lines.
14
OCTOPUS 8M/16M/24M
Release 07/2008