S530 Parametric Test System Administrative Guide
Section 4: Maintenance
S530-924-01 Rev. D / September 2017
4-7
Power distribution unit connections and power distribution basics
The 42000-PDU consists of:
24 V DC output to emergency off (EMO) circuits and cabinet fans with power
24 V DC output through banana jacks
Two specially switched power outlets (factory configuration: Always on)
Three groups of four switched outlets (off only with EMO condition)
Control through a 25-pin D-sub connector
Properly lockout and tagout the system before beginning installation or connection. Also,
never turn on the system until all connections and safety grounds are installed. Make sure
the main circuit breaker on the PDU is placed in the OFF position before making or breaking
any connections.
The following table provides a detailed description of the available connections in the 42000-PDU.
Information about the EMO circuit's connection and operation is also in the table.
42000-PDU connection descriptions
Connection
Description
Specially switched
outlets
Two power outlets on the power distribution unit (PDU) rear panel.
WARNING:
Severe personal injury or death due to electric shock or
electrocution may result if power is not removed before working
inside the cabinet. Do not use power outlets for accessories (for
example, a soldering iron or drill). Use for instruments that do not
have hazardous voltages and do not need to have power removed
through the EMO circuit (for example, a computer). In the factory
default configuration, these outlets have dedicated power and will
remain live even if power is removed through the EMO circuit.
The specific configuration is marked on the PDU rear panel.
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