Rf on bias, Voltage reference, See wiring diagram 4-21 – Apex Digital 5708009-C User Manual
Page 66: Unassigned, Interlock, Analog input, See wiring diagram 4-23, Reserved for pulsing enable, Digital input, This pin is currently reserved for future use

4-20
5708009-C
Advanced Energy
®
WIRING DIAGRAMS FOR OPTION D 15-PIN USER PORT
The diagrams in this section provide wiring information to properly connect to the
Apex 15-pin configuration D User port.
9
6
RF ON BIAS
Voltage
reference
+15 Vdc provided to the User
port through a 1.1 k
Ω resistor. It
can be used for a switch or relay
contact closure to enable RF ON
(pin 4).
10
UNASSIGNED
11
6
INTERLOCK
Analog
Input
When connected together, these
pins close the interlock and
allows RF output to be enabled.
12
6
RESERVED for
PULSING ENABLE
Digital
Input
This pin is currently reserved for
future use.
Note: Pulsing parameters are set
via the digital/serial
interface.
13
6
FWD/LOAD
POWER
REGULATION
Digital
Input
Load Power Regulation is
enabled when a 4 to 30V input is
present on this pin.
Note: Forward Power
Regulation is the default.
14
UNASSIGNED
15
UNASSIGNED
Table 4-2. User Port (15-pin) Connector Pins Exclusive for Configuration D (Continued)
Signal
Pin
Return
Pin
Name
Signal
Type
Description