Programming instructions

50 Front-Panel Operation

To Pair Two Cards Two same type plug-in modules (cards) can be paired. Once paired, any

operation on a channel of one module will be duplicated on the

corresponding channel of the paired module. To pair two same type cards:

1. Press Menu, the CONFIG annunciator lights up. Turn the knob to

select “CARD PAIR”, press Enter;

2. When “FIRST SLOT 1” is displayed, turn the knob to select the first

paired slot (i.e. Slot 1), then press Enter

[1]

;

3. When “SECOND SLOT -” is displayed, turn the knob to select the

second slot (i.e. 5) to be paired with the first;

4. Press Enter to return to “CARD PAIR”, press Menu again to exit this

operation, the CONFIG annunciator turns off accordingly.

To Configure the

External Trigger

Agilent 3499A/B/C provides two pairs of trigger lines for

externally-controlled scanning. The first pair (TRIG IN & TRIG OUT) is on

the rear panel of the mainframes, the second pair of EI (External Increment)

& CC (Channel Closed) is on the Agilent 44474A. You can use only one pair

of the trigger lines each time, and specify whether a trigger out pulse can be

sent out when a relay is closed during a scan.

To configure the external trigger:

1. Press Menu, the CONFIG annunciator lights up. Turn the knob to

select “CONF EXT TRIG”, then press Enter;

2. Select either Slot 0 (Agilent 3499A/B/C) or the slot in which an

Agilent 44474A is installed, then press Enter;

[1]. In case there are no matching cards installed in the mainframe, the display will show “NO MATCH”, then automatically

returns to the first level of the Menu menu.

CARD PAIR

FIRST SLOT 1

SECOND SLOT 5

CONF EXT TRIG

TRIG SLOT 0