Using Internal Power Source; Setting Up The Internal Power Source; Mounting The Top Cover; Sw2 Setting (External Power Source:1) - Agilent Technologies 4286A User Manual

2. Set up pull-up resistor (for DC isolated input signal) according to voltage level of external
power source.

Using Internal Power Source.

Setting up the Internal Power Source

When you use the internal power source (5V), set either SW2(4) or SW2(5) or both to ON
position. Check the following to make sure that other setting are correct.
SW2(4) set to ON
COM2 is connected to the 4286A COMMON. A 5V COMMON is available from COM2.
Note that the control output signal is not opto-isolated.
SW2(5) set to ON
COM1 is connected to the 4286A COMMON. A 5V COMMON is available from COM1.
Note that the control output signal is not opto-isolated.

Mounting the Top Cover

Reverse the order of steps mentioned in \Removing the Top Cover" to mount the top cover and
back legs in position.
4-14 4286A with Chip Handler
Table 4-4. SW2 Setting (External power source:1)
Setting
Internal pull-up resistor
Pull-up resistor at handler side OFF OFF OFF
Table 4-5. SW2 Setting (External Power Source:2)
External Source Voltage
5 to 7V
7 to 12V
Set SW2(1) through SW2(4) and SW2(6) and SW2(8) as follows:
Table 4-6. SW2 Setting(Internal Power Source)
(1) (2) (3) (4) (6) (7) (8)
ON ON ON ON
This switch settings speci es
1
the 4286A COMMON as the
control output COMMON.
SW2
(1) (2) (3)
ON ON ON
SW2
(6) (7) (8)
ON ON ON
OFF ON OFF
SW2
1
ON ON ON