Technical Data ‐ Head Station 1A/1B/1C Technical Data ‐ Head Station 1A/1B/1C Type differences (Hardware is identical with all types) Head Station 1A Head Station 1B Head Station 1C For all Head Stations Power supply specifications Nominal supply voltage Current consumption Power Reverse polarity protection Redundant power supply Wire diameter Ethernet Connector Cable length Link speed MAC address Supported protocols Default IP address after reset/purchase Connections Relay contact Resistance Voltage Current 300 mOhm (plug included) 24 VDC 0.4 A Installation notes: The Relay output shall be supplied from an isolating transformer having a secondary Listed fuse rated either: Maximum 5 amps for voltages 12~20 V, or Maximum 4 amps for voltages 21~24 V, or is supplied by a Class 2 power supply, or equivalent.

Technical Data ‐ Head Station 1A/1B/1C Backplane Modules Current available for the backplane PROFIBUS networks Compatible backplane units SD Card Types Size Others Weight MTBF Ambient operating temperature rating