User`s manual

Configuring the Agilent E8462A Multiplexer 25
impedance when excessive current is flowing in the channel. For example,
if the contacts of one relay are welded together because it switches a large
voltage, the PTC resistors help protect user circuitry on other channels in the
same bank when their relays close.
Option 015 Ribbon Cable
Connector Terminal
Block
Option 015 Terminal Block provides nine ribbon-cable header connectors.
This option is identical to option 014 but does not have fault protection PTC
resistors. Zero ohm resistors (short) are loaded in place of the PTC resistors.
This option provides the convenience of bringing field wiring to the module
by way of flat ribbon cable and terminating on the terminal block at the
header connectors.
Figure 1-10. Agilent E8462A Option 014 Fault Tolerant Terminal Card Connector Pin-Out
J101 J102