AR 10047590, Operating And Service Manual

Page: 39 / 54

Model 125S1G2z5
Rev A 23
2.4.6.14 AC Power-On Defaults
Default settings that are applied at AC mains power-on can be changed by adding the following prefix to
select commands.
Syntax: DEFAULT:
Compatible commands:
Level Adjust
LEVEL:GAIN
Notes:
Use the command DEFAULT:FACTORY to reset all applicable settings back to their factory defaults.
All applicable defaults can be queried, except DEFAULT:FACTORY , by adding a ? character in place of
the setting parameter.
Example 1: To set the default RF Gain to 75%, send the following command:
DEFAULT:LEVEL:GAIN75<LF>
Example 2: To query the default RF Gain setting, send the following command:
DEFAULT:LEVEL:GAIN?<LF>
Response: DEFAULT:LEVEL:GAIN75<LF>
2.4.7 Interlocks
The 4U MPC has one interlock circuit that is wired to the rear panel Safety Interlock connector. This interlock
requires a normally closed external circuit to allow the unit to function.
2.4.7.1 Inhibit Interlock
This interlock circuit inhibits RF amplification by disabling the low level (A1) and Power (A2 and A4 – A7)
amplifier stages.
The Inhibit Interlock is wired to the rear panel interlock connector pins 1 and 8. A closed circuit from
interlock connector pin 1 to pin 8 is required for normal operation. Opening the Inhibit Interlock connection
will inhibit the amplifier and display Fault:Interlock on the front panel Touch Display.
When the Inhibit Interlock circuit is restored to a closed condition, the Inhibit Interlock fault can be cleared
by pressing the
RESET
button on the front panel LCD or by using the remote reset command (when the
Toggle Switch is set to REMOTE ).