AMETEK CTS 3.0 - Manual (Page 42)

Compliance Test System 3.0 User Manual
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3.6 Front Panel Connections and Controls
The front panel incorporates three functional areas:
Output Sockets/Connectors
Status Indicator lights
Switch/Button controls
3.6.1 Output Sockets/ Connectors
PACS-1, PACS-3 and PACS-3-75
PC Interface Connector located on front panel is in parallel with the rear panel connector. Use
front panel interface connector if rear panel access is difficult.
PACS-1 ONLY
The Output Socket is located on the right side of the front panel. It provides connection to a
European CEE7/7 plug. This socket is connected to the same point as the rear panel AC output
connector TB3. Keep in mind that this socket is rated for 16A only, while the rear terminals at
TB3 are rated for 40A.
3.6.2 Status Indicator Lights
PACS-1 and PACS-3
The “ON “ LED indicates The PACS module is powered up. Note: Even if the PACS unit is
powered down, the AC input terminals may still be live if the applied source has not been shut
down.
PACS-1 and PACS-1RP
The BYPASS LED indicates the internal test impedance network is bypassed with relays.
The FLICKER LED indicates the internal test impedance is connected to the output for
compliance testing.
Note: If the PACS-1 does not have the optional reference impedance installed, then the bypass
LED will stay lit permanently and the flicker/bypass button will have no effect.
3.6.3 Switch/Button Controls
PACS-1 and PACS-3
The front panel power switch located on the left hand side of the PACS unit energizes the
measurement circuits.
PACS-1
The Flicker/Bypass button toggles the internal impedance on and off, the FLICKER and BYPASS
LEDs indicate which state the circuit is in.
Keep in mind that the internal impedance network can be switched in or out manually from the
front panel, or, remotely by the flicker software. The default setting for the flicker relay control is
remote via the DB37 connector.
Should it be desired to enable the front panel flicker control, it will be necessary to remove the top
cover of the PACS-1 unit and set selector switches S1-1and S1-2. This light blue switch
assembly is located on the AC Sensor board towards the front and left hand side of the PACS
unit. See Figure 33 on page 105 for circuit board orientation . See figures on next page for
proper switch orientation.