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4.2.1
Front Panel
4.2.2
Back Panel
• Chassis GND - Ground point for the RTU unit
• Alarm Contacts – Local alarm contacts
• Control interface – DB25 female port: Power and Communication
• -48V-DC/Return terminals – available when ordered with DC power option
• 15V-DC terminals - DC1 and DC2 available when ordered with AC power option
• Console interface – RS-232 male port used by the ORTU to communicate with the OX4100
series Optical Switch.
RTU-4000/RTU-4100 User Manual, D07-00-132P-RevA01
Front Panel: RTU-4000 Chassis with RTU-4100 Optical Modules
RTU-4000 Back Panel
Page 9 of 44
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