© Agilent Technologies 1989–2002 Agilent 3070 / 79000 Site Preparation 10-156
Chapter 10: Site Preparation – Power Requirements for Older Systems: Connecting Mains Power To The System
E1131A Main/Branch Connection
The Emergency Shutdown main/branch connections
between the two PDUs in a 307X support bay are wired
at the factory, so no wiring is necessary during
installation.
However, if you have multiple 3070 / Series II family
systems, and you want the Emergency Shutdown switch
on one system to also shut down one or more other
systems, some additional wiring is necessary. To
implement parallel remote emergency shutdown, all
systems must have E1131A PDUs; older PDUs do not
have this capability. For wiring instructions, see the
E1131A Power Distribution Unit Installation and
Service Manual (E1131-90000).
WARNING
✺
Hazardous voltages and currents may exist
beneath the covers of the PDU, even when all
PDU circuit breakers are in the "standby/off"
position. To remove all power, remove ac mains
to both PDUs.
NOTE
The voltage selector switch (S1) inside the PDU
DOES NOT set the output voltage of the PDU. It
sets the PDU’s remote shutdown circuitry for the
appropriate input voltage range: 100–127 volts or
200–240 volts.
You must remove the PDU from the bay to wire the
Emergency Shutdown wires. The access plate is on the
rear of the PDU.
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