Keysight 87406Q, Руководство по эксплуатации и обслуживанию

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16 Keysight 87406Q Operating and Service Manual
2 Switch Configuration
Selected ports will be closed and unselected ports will be
automatically opened by the internal logic circuits when new port
selections are made. After the RF port is switched and
magnetically latched, the solenoid current is interrupted by the
solid state position sensing circuitry. The drive voltage must be
maintained to avoid RF path disconnection by the internal logic.
Open all RF ports
Unselecting all RF ports and selecting Pin 16 on standard and
Option T24 open all RF ports:
Selecting an RF port will override the "open all RF ports" for each
selected port. If desired, pin 16 can be wired directly to ground
(Option 024) or TTL "High" (Option T24) to open all RF ports at
power- up.
Break-before-make
Remove the control inputs from the undesired port, and then
select the desired port. The internal logic will unselect the old port
automatically upon application of the new port selection.
[1] "Open All Ports" is not available with Option 100 or Option T24.
[2] "Open all RF Ports" feature is overridden by port selection.
Drive pin 3 5 7 9 11 13 16
Option 024 U U U U U U G
Option T24 L L L L L L H
U = Ungrounded, G = Ground, L = TTL "Low", H = TTL "High"