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ADVANCED ENERGY
CONNECTING USER PORT
Connect this 15-pin, subminiature-D, shielded, female connector (labeled User1) to your
control unit. If this cable is disconnected, RF output power will not come on.
Interface Cabling Recommendations
The cable used to connect the generator's 15-pin User port to the system controller must be a
shielded, 15-wire I/O cable. Twisted-pair wiring may be used but this is not mandatory.
Signal losses should be minimized by keeping the cable length as short as possible. The
maximum recommended cable length between the generator and the controller is 10 m (33').
To minimize interference from adjacent electrical equipment, the EMI shield in the cable must
be terminated to the metal shells of the cable's D connectors. Additionally, the chassis of the
RFG 5500 must be tied to a local earth ground through an adequately sized copper grounding
strap.
3-4
December 2000
P/N 5706045C
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