Aeroflex SmartStep 8310, Operation & Installation Manual

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Model 8310-XX-X-XN IM-493
Aeroflex / Weinschel 13
4. FRONT PANEL CONTROLS & INDICATORS:
The following paragraphs provide setup and general guidelines for operating the Model 8310-XXX-XN
Programmable Attenuator Unit and its different bus configurations.
Figure 3. 8310-XXX-XN Series Front Panel
ENTRY keys: The numeric entry keys allow the user to directly enter numeric values. When using
the keypad, values are not updated until the ENT (enter) key is pressed. The Minus (-) and CE (clear
entry) functions may be accessed via first depressing the SHIFT key.
INCR & DECR: The INCR and DECR keys allow settings to be scrolled from their current value.
Unlike the ENTRY keys, the new setting is updated immediately without the use of the ENT key.
CHAN: Allows the selection of the current channel, as indicated by the CH1-CH4 indicators.
Repeated depressions of the CHAN key will select the next available channel. The main display will
show the current setting of the channel.
REL:
This key control allows the use of a relative mode for attenuators, as indicated by the REL
mode indicator. When turned on, the currently displayed attenuation value is used as a reference
value from which the attenuation may be set. In this mode, attenuation values may be positive or
negative from the reference setting. When REL is turned off, the display returns to the actual
attenuation setting for the channel.
STEP: This key allows the user to change the attenuation step size used by the INCR and DECR
keys. When turned on, as, indicated by the STEP indicator, the current step size is displayed in the
main display, and a new value may be entered using the INCR/DECR or ENTRY keys. The step size
may be set to any multiple of the intrinsic step size for the currently selected channel.
MENU: Invokes the menu functions. Menu selections may be made via the INCR and DECR keys.
(NOTE: menu functions are currently not implemented as of 3/8/99)
AUX1/AUX2: The function of these keys is user-programmable via remote operation. They invoke
any currently defined AUX1 and AUX2 macros. Refer to the macro programming section for
information on creating macro definitions.
LOCAL: This key places the 8310-XXX-XN in local operation mode, unless the key function has
been overridden via an IEEE-488.2 local lockout or execution of the LOCKOUT command.
ADDR: This key displays the current IEEE-488.2 address. The address may be changed from the
front-panel, however, the initial setting at power on is derived from the rear-panel address switch.