Connections For Four-Section Attenuator; Relay Drivers; Typical Connections For Programmable - HP 11713A Operating And Service Manual

Operation Model 11713A
Connections for Four-Section Attenuator
A typical connection for a programmable four-
section attenuator is provided in Figure 3-5. To use
one four-section attenuator assembly, an attenua¬
tor cable is connected to either the ATTEN X out¬
put {A6J1) or ATTEN Y output {A6J2); both out¬
puts must be connected to have more than four
attenuator segments.
Relay Drivers
simple non-latching relays. With connections to
both the attenuator and switch outputs on the rear
panel, a total of 10 relays may be on at one time (if
total current is less than 650 mA), However, since
there are dual transistor and relay drivers, where
one driver is on while the other is off, a total of 20
relays may be controlled.
CAUTION
Figure 3-6 shows the connections for a simplified
relay driving circuit. This circuit is adaptable for
If the total continuous load current of
650 mA is exceeded, damage may result.
M713A
R£AR PANEL CONNECTORS
ATTEN ATTEN
inUA
PRQNT PANEL
PUSHsurroNS
ATTENUATOR ATTENUATOR
X r
TWO ATTENUATOR CABLES
ARE SUPPLISO WITH THE11T13A
ANO HAVE HP PART NUMBER S120.2703
ATTENUATOR CARD ATTENUATOR CARD ATTENUATOR CARO AHENUATOfl CARD
i_jy OUTPUT
V
Figure 3-5. Typical Connections for Programmable Four-Section Attenuator
3-16