Interfaces, Displays and Operator Controls
Power Supply
The power supply can be connected redundantly. Both inputs are isolated. There is no load distribution. With redundant power supply, the power supply unit with the higher output voltage supplies the OSM/ESM alone.
Signaling Contact
The following is signaled via a floating signaling contact (relay contact) when contact is broken:
•The failure of a monitored power supply. Which power supply is monitored is specified in the fault mask (see Section 4.2.3).
•The incorrect link status of a monitored port (in other words, the port is not correctly attached or there are no link test pulses coming from the partner device). The ports to be monitored are selected using the fault mask.
•When at least one port is segmented.
•If the DIP switch setting was changed during operation.
(Inconsistency between the switch setting and the actual operating state because the switch setting is adopted only after a restart)
In the RM Mode (additional)
•The incorrect link status of port 7 or port 8 of the OSM ITP62, OSM ITP53, ESM ITP80, OSM TP62, ESM TP80, and OSM BC08 or of port 3 or port 4 of the OSM TP22 and ESM TP40, regardless of the status of the fault mask.
•When a second OSM is switched to the RM mode in the same ring.
OSM/ESM in Normal Mode and ITP XP Standard Cable 9/9 Plugged into the
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•Bad standby configuration: The partner device connected via the ITP XP Standard Cable 9/9 is not switched to standby.
•If there is an incorrect link status on a standby port.
Industrial Ethernet OSM/ESM | 51 |
