Lafayette Instrument 81335C User manual

User’s Manual
Fax: [phone] . www.lafayetteinstrument.com . [e-mail]
Model 81335C
3700 Sagamore Parkway North
Lafayette, IN 47904 USA
Tel: [phone] • [phone]
Fax: [phone]
[e-mail]
www.lafayetteinstrument.com
© 2003 by Lafayette Instrument Company, Inc. All Rights Reserved-Rel. 6.16.06
Operant Conditioning Console
User’s Manual
MAN510

PO Box 5729 Lafayette, IN 47903 USA . Tel: [phone]
Operant Conditioning Console
System Description
System Specications
Setup Instructions
Summary of controls
Abbreviations
Using the Test Menu
Magazine Training – Step by Step use of the Menu Setup Displays
Schedule Descriptions:
Magazine Training
Partial Reinforcement
Fixed Ratio
Variable Ratio
Fixed Interval
Variable Interval
Discrimination 2
Discrimination 4
Dierential Reinforcement of Low Response Rates
Dierential Reinforcement of High Response Rates
Chain
Avoidance
Escape
Auxiliary Output Control
Standard Wire Connections
Notes
Terms and Conditions
Table of Contents
System Description
The 81335C Behavioral Control Console is a fully integrated animal-learning/operant conditioning control
instrument used primarily for student laboratory studies. All schedules can be easily programmed and
implemented in a variety of environments. Manual shaping activation is provided and student participation
encouraged with front panel display of counters, latency timers where appropriate, and schedule settings.
The 81335C Behavioral Control Console features a 20 x 2 character LCD display screen, membrane touch
controls, and rear panel connections. The complete behavioral control package includes a 30 V DC Power
Supply, Shaping Push Button, 10’ Cage Connection Cable (81406-10), and 81409 Mini I/O Module.
The 81335C has the capability to be used with the following devices:
Pellet Dispenser 80208 and 80209 series **
Liquid Dispenser 80201 **
Omnidirectional Rod 80111
4 Press Bars 80110
4 Nose Pokes 80116O, 80116OR, 80116S
4 Stimulus Lights 80221
4 Control Stimulus Tones 80223
4 Auxiliary Outputs Refer to Auxiliary Output Control
Air Pu Stimulus Contact Lafayette Instrument Company
** Other devices such as pumps, grain feeders, etc. may also be connected to the outputs designated for
“pellet” and “liquid” dispensers as long as they can operate on 28 V DC and draw no more than 1 amp.
The pulse duration is adjustable in the schedule set-ups to meet the needs of most devices.
2

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Table of Contents
3
30VDC 2A Power Supply @ 120/240VAC 50/60Hz
2A Slow-Blow (internal)
Internal 0-2.4 ma @ 0-225V AC
(Not useable in non-shock versions of 84025 Series Animal Learning Systems)
5 Chamber Connections, 1 Shaping Pushbutton
8 Chamber Connections, 4 Auxiliary (rear panel), Shock, +28VDC and GND
System Specications
Power:
Fuse:
Shock:
Inputs:
Outputs:
Setup Instructions for Model 81335C
1. All Lafayette Instrument systems are shipped factory assembled for immediate operation. Connect
the supplied DB-25 cage connection cable between the chamber mini I/O module and the 81335C
Control. Connect the shaping push button to the back panel of the control. If the shock grid will be
used, connect its supplied cable to the back panel of the control.
2. Auxiliary connections 1-4 may be used for further manipulation. Additional instructions for the use of
these connections are explained within the auxiliary output control section of this manual.
3. The setup for chamber accessories such as a pellet dispenser is covered in separate instructions as
appropriate.
4. Connect the power supply output to the rear panel connection on the control unit and the power
cable to any suitable grounded outlet. The 81335C can operate on 110VAC to 240VAC using its’
supplied power supply.
5. Turn power on to the 81335C.

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Operant Conditioning Console
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Summary of Controls
Reset Within Schedule Setup:
Press once, the unit will be reset to the schedule selection menu.
Within Schedule Operation:
Press once, the unit will pause operation, outputs are turned OFF and input counts are
disabled.Press the RUN control to return selected outputs to the ON State and continue
schedule operation. Ratio Counters, Interval Timers, etc. reset to a value of 0.
Press twice, the unit will exit the schedule (remember to record data rst) and be reset to
the schedule selection menu.
Within Test Menu:
Press once, the unit will be reset to the schedule selection menu.
Run Within Schedule Setup:
“PRESS RUN TO BEGIN” is displayed at the end of each schedule set up. Schedule operation
begins immediately when RUN is pressed, except for Avoidance and Escape which require
a shaping button activation to start a trial after RUN is pressed
Within Schedule Operation:
Press once to resume schedule operation after being paused.
Within Test Menu:
Not used except to begin the PEL, LIQ, SHK, & AIR Series of tests.
Scroll up Within Schedule Selection Menu:
Press once to move up to the test menu from the rst item, magazine training, on the
schedule selection list. Press again and it will go to the end of the list. After scrolling down
it will scroll up to see the previous schedule selection.
Within Schedule Setup:
Pressed once to change a selection status from “N” to “Y”, or to increase the numerical
value of a ratio, interval, or intensity setting. Press quickly to increment values by 1 unit,
hold to run up the value to the maximum.
Within Schedule Operation:
Use with Scroll Down to view dierent data display screens.
Scroll down Within Schedule Selection Menu:
Press once to move down to the next schedule on the schedule selection list.
Within Schedule Setup:
Pressed once to change a selection status from “Y” to “N”, or to decrease the numerical
value of a ratio, interval, or intensity setting. Press quickly to decrement values by 1 unit,
hold to run the value down to zero.
Within Schedule Operation:
Use with Scroll Up to view dierent data display screens.
Enter Within Schedule Selection Menu:
Press once to select the displayed schedule and display the rst setup screen
Within Schedule Setup:
Press once to move to the next setup screen for the selected schedule.

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Abbreviations
Test Data Displays
FL Front Left Lever Count
FR Front Right Lever Count
BL Back Left Lever Count
BR Back Right Lever Count
ODL Omnidirectional Response Count
SHP Shaping Push Button Count
Setup Displays
FR LF Front Left
FR RT Front Right
BK LF Back Left
BK RT Back Right
Schedule Data Displays
BLB Back Left Bar (response) Count
BRB Back Right Bar (response) Count
CT Ratio Value in Discrimination 2 & 4
DRL Interval Value (seconds)
ESCT Escape Count
FI Fixed Interval Value (seconds)
FLB Front Left Bar (response) Count
FR Fixed Ratio Value
FRB Front Right Bar (response) Count
INT Interval Value(s) (Escape & Avoidance)
INTVL Interval Value (seconds) in DRH
LAT Latency to respond in Escape and Avoidance Schedules
LIQ Liquid Reward Count
ODL Omnidirectional Lever (response) Count
PEL Pellet Reward Count
SHP Shaping Push Button Count
TRL Trial Number
VI Variable Interval Value (seconds)
VR Variable Ration Value
Note: A number or +/- is used with some of the above to separate counters as needed for particular
schedules.

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Operant Conditioning Console
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Using the Test Menu
When the control console is rst powered up, it defaults to the Magazine Training schedule selection. Press
the Up Button to go to the Test Menu. The Test Menu will cycle through several test options. Press the Reset
Button to exit the test menu at any time and turn OFF any outputs that have been left ON.
1. Press Enter to reveal the Auxiliary Output test.
2. Press Enter to skip to the next test menu. Press the Up button to change from the default setting ‘N’ to ‘Y’.
This will turn all four auxiliary outputs ON. Press the Down button to change back to ‘N’ and turn all four
auxiliary outputs OFF. The pellet dispenser may also be activated once each time the outputs are turned
ON. Pulsed outputs will be pulsed once each time a ‘Y’ option is selected. You must select ‘N’ even though
the output has turned OFF and then ‘Y’ for each pulse. Those outputs that are not pulsed will remain ON if
ON when exiting. Use a nal Down button to switch all auxiliary outputs OFF, and press Enter to advance
to the Input Test screen.
3. The input test screen consists of a counter for each available input response. Press any response or
shaping push button to increment a count. Press Enter to move to the next menu.
4. A stimulus output selection is provided. Use the Up button to raise the level of the indicated output from
0 to a max of 20 and the Down button to return the level to 0 (OFF). Press the Enter button to reveal the
next menu. Note: If an output is ON when the Enter button is press, it will be left ON until the test menu
is exited. Repeat for all stimulus lights and tones.
5. At the completion of the CS test menus, the Reward test menus are revealed. Press Run to begin the next
series of tests.
6. Press the Up or Down buttons to increase or decrease the timed reward output. Use the Shaping push
button to activate the reward output as indicated. Press Enter to repeat this test for the Liquid Dispenser,
Shock Output, or Air Pu Control. Press Reset to return to the Magazine Training menu.
Magazine Training – Step by Step use of the Menu Setup
Displays
When the control console is rst powered up, it defaults to the Magazine Training schedule selection. The Up/
Down buttons will take you to other schedule options but for now press Enter.
1. Acceptable Response #1 - Press Enter to accept the default Front Left Press Bar as active. To disable this
response press the Down button, followed by Enter.
2. Acceptable Response #2 - Press Enter to accept the default Front Right Press Bar as active. To disable this
response press the Down button, followed by Enter.
3. Reinforcement Method #1 – Press the Up button to select the Pellet Dispenser (or any device connected
to output terminal #3) followed by Enter. To leave the Pellet Dispenser disabled simply press Enter.
4. Reward Pulse Time #1 – Press Enter to accept the default time of 0.05 seconds. This is sucient for the
80208 and 80209 Pellet Dispensers. Use the Up/Down buttons to change this time if needed. A quick
press will change the time by 0.05 seconds. Hold the button to advance the time more quickly.
5. Reinforcement Method #2 - Press the Up button to select the Liquid Dispenser (or any device connected
to output terminal #4) followed by Enter. To leave the Pellet Dispenser disabled simply press Enter.
6. Reward Pulse Time #2 – Press Enter to accept the default time of 0.05 seconds. This is sucient for the
80201 Liquid Dispenser. Use the Up/Down buttons to change this time if needed.
7. Additional Settings – Press the Up button and Enter to select from the additional settings list. Press Enter
only to skip additional settings.
8. FR LF STIM LITE – This setting turns the Front Left Stimulus Light on during magazine training. Use the Up
button to set the intensity level from 0 (OFF) to 20 (full brightness). Press Enter to accept the setting.

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9. FR RT STIM LITE – same as #8 for the Front Right Stimulus Light.
10. Auxiliary Output #3 – Press the Up button and Enter to turn a device, e.g. house light, that is connected to
the auxiliary output #3 on the rear panel ON during magazine training. Press Enter only to leave the Aux
#3 output disabled.
11. Auxiliary Output #4 – same as #10 except for Aux #4 output.
12. Press Run to Begin – Counters are displayed to monitor animal responses, shaping responses and rewards.
See Schedule Descriptions for additional details.
Schedule Descriptions
The step-by-step setups of each schedule are similar to that described for Magazine Training and will not
be repeated in this section except for settings unique to the operation of the schedule. Use the Down/Up
buttons to scroll down or up the list of available schedules. A separate extinction schedule is no longer
provided. Simply use Magazine Training, Partial Reinforcement, or Fixed Ratio without a reinforcement device
selected. When using Partial Reinforcement, program the stimulus light to come on when the shaping button
is pressed to look at spontaneous recovery.
Magazine Training
a. Both front press bars and the shaping push button increment their respective counters.
b. Reinforcement is given for each selected/acceptable response and for each push button activation.
c. The reinforcement counter is incremented for all reinforcements.
d. The CS lights are available and turn ON at the intensity selected from 1 - 20 when the Run command is
issued. The CS remains ON for as long as the schedule is running.
e. A single Reset pauses the schedule and turns selected outputs OFF. The green status light ashes while
the schedule is paused. Press Run to continue and Reset to terminate the schedule.
f. The Tones and Shock are OFF.
Partial Reinforcement (PRF)
a. All press bars, the Omni-directional lever, and the shaping push button increment their respective
counters.
b. Reinforcement is given for each selected/acceptable response only when the push button is being
pressed.
c. The reinforcement counter is incremented for all reinforcements.
d. The CS lights and tones are available and turn ON at the intensity selected from 1 - 20 only when the
shaping push button is pressed and held. CS is turned OFF as soon as the push button is released.
e. A single Reset pauses the schedule and turns selected outputs OFF. The green status light ashes while
the schedule is paused. Press Run to continue and Reset to terminate the schedule. Use the Down button
to reveal multiple data screens and the Up button to return to previous screens while the schedule is
running or paused. Data will be lost as soon as the schedule is terminated.
f. The Shock is OFF.

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Fixed Ratio (FR)
a. All press bars, the Omni-directional lever, and the shaping push button increment their respective
counters.
b. Reinforcement is given for each selected/acceptable response only for each nth response. This value is
set in the Ratio Control screen of the set up menu using the Up and Down buttons. The default value is 1
or Continuous Reinforcement (CRF). The maximum value is FR-99.
c. The reinforcement counter is incremented for all reinforcements.
d. The CS lights and tones are available and turn ON at the intensity selected from 1 - 20 for as long as the
schedule is running.
e. A single Reset pauses the schedule and turns selected outputs OFF. The green status light ashes while
the schedule is paused. Press Run to continue and Reset to terminate the schedule.
NOTE: The ratio count will return to zero when the schedule is paused. For example, if the animal has
made 3 responses toward meeting an FR5 when the scheduled is paused, it will still require 5 responses
to meet the ratio when the schedule is resumed. Press Run to continue/resume schedule operation and
Reset to terminate the schedule. Use the Down button to reveal multiple data screens and the Up button
to return to previous screens while the schedule is running or paused. Data will be lost as soon as the
schedule is terminated.
f. The Shock is OFF.
Variable Ratio (VR)
The Variable Ratio schedule is set up and run in a manner identical to the FR schedule. The only dierence is
that the Ratio Control setting now sets the Mean ratio value for delivery of reward. The actual distribution is
quasi-gaussian with a lower limit of ½ x mean. Although the upper limit is open, the probability of obtaining
a value greater than 2 x mean is very low.
Fixed Interval (FI)
a. All press bars, the Omni-directional lever, and the shaping push button increment their respective
counters.
b. Reinforcement is given for the rst selected/acceptable response to occur after ‘t’ seconds have elapsed.
The timer is reset to zero and restarts at the completion of the reward pulse. The green status light
is turned ON to indicate that the interval timer has timed out. The interval value is set in the Interval
Control screen of the set up menu using the Up and Down buttons. The default value is 1.0 seconds. The
maximum value is 99.9 seconds in 0.1 second increments.
c. The shaping pushbutton will deliver reinforcement at any time and will reset the interval timer to zero.
d. The reinforcement counter is incremented for all reinforcements.
e. The CS lights and tones are available and turn ON at the intensity selected from 1 - 20 for as long as the
schedule is running.
f. A single Reset pauses the schedule and turns selected outputs OFF. The green status light ashes while
the schedule is paused. Press Run to continue and Reset to terminate the schedule.
NOTE: The interval value will return to zero when the schedule is paused. For example, if the timer has
timed for 3 seconds of a 5 second FI, it will still require a 5 second interval when the schedule is resumed
for a response to be rewarded. Press Run to continue/resume schedule operation and Reset to terminate
the schedule. Use the Down button to reveal multiple data screens and the Up button to return to
previous screens while the schedule is running or paused. Data will be lost as soon as the schedule is
terminated.
g. The Shock is OFF. Auxiliary Outputs #3 and #4 are available.

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Variable Interval (VI)
The Variable Interval schedule is set up and run in a manner identical to the FI schedule. The only dierence is
that the Interval Control setting now sets the Mean interval value for delivery of reward. The actual distribution
is quasi-gaussian with a lower limit of ½ x mean. Although the upper limit is open, the probability of obtaining
a value greater than 2 x mean is very low.
Discrimination 2
This two-part discrimination is designed to let you set all contingencies for two alternating schedules.
Switching between the two component parts S1 and S2 is controlled with the shaping push button. The ratio
control setting applies to both components. The rst group of settings is labeled 1. The default settings for
the rst component are for the front left lever to be active with the front left stimulus light at full intensity
and no reward. The default settings for the second component are for the right front lever to be active
with the front right stimulus light at full intensity and pellet reward. Position and not the stimulus light
determine where reward is available. A simple Go-No Go Discrimination would use the same response in
both components. In the reward component the CS would be ON, and reward would be available. In the no
reward component the CS would be OFF and reward not available. Change any default setting as needed to
meet a specic experiment design. Discrimination 4 has four components and could be set up with varying
levels of light for a stimulus generalization study.
a. Press Enter to select Discrimination 2 from the Schedule Selection list and display the rst Set-Up screen.
Use the Up/Down buttons to change the setting and/or press Enter to accept the default setting and
proceed to the next item. When Set-Up is complete, press Run to activate the schedule.
b. Only the Front Right and Front Left Press Bars are used for this schedule. Two counters are provided for
each to separate responses in S1 vs. S2. A counter is also provided for the shaping push button.
c. Reinforcement is given for each selected/acceptable response only for each nth response. This value is
set in the Ratio Control screen of the set up menu using the Up and Down buttons. The default value
is 1 or Continuous Reinforcement (CRF). The maximum value is FR-99. The same ratio applies to both
components of the schedule.
d. Separate reinforcement counters are incremented for all reinforcements in S1 & S2.
e. Stimuli selected for each component will be ON for the duration of the component at an intensity of 0 – 20
where 0 is OFF and 20 is full intensity. Lights and/or Tones may be selected.
f. A single Reset pauses the schedule and turns selected outputs OFF. The green status light ashes while
the schedule is paused. Press Run to continue and Reset to terminate the schedule. Use the Down button
to reveal multiple data screens and the Up button to return to previous screens while the schedule is
running or paused. Data will be lost as soon as the schedule is terminated.
g. The Shock is OFF. Auxiliary Outputs #3 and #4 are available.
Discrimination 4 - Stimulus Generalization
Discrimination 4 is identical to Discrimination 2 except that there are now 4 component schedules to
congure. This is particularly useful for a stimulus generalization experiment. The four components are
presented sequentially or at random. The default setting of ‘N’ cycles sequentially S1-S2-S3-S4. Use the Up
button to select ‘Y’ or random. The rst sequence will still be as programmed S1-S2-S3-S4, however each
component selection thereafter is randomly determined with the following exceptions. Components are
never repeated. Selection is made without replacement so that each component is always presented an equal
number of times for each group of four selections.

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Dierential Reinforcement of Low Response Rates (DRL)
The set up for DRL is identical to the set up for FI. The only dierence in this schedule is the aect of responses
made while the interval timer is timing. See “b.” below.
a. All press bars, the Omni-directional lever, and the shaping push button increment their respective
counters.
b. Reinforcement is given for the rst selected/acceptable response to occur after ‘t’ seconds have elapsed.
Responses made on the selected/acceptable response(s) prior to the interval timer timing out reset the
timer back to zero without delivering a reward. The green status light is turned ON to indicate that the
interval timer has timed out. The interval value is set in the Interval Control screen of the set up menu
using the Up and Down buttons. The default value is 1.0 seconds. The maximum value is 99.9 seconds in
0.1 second increments.
c. The shaping pushbutton will deliver reinforcement at any time and will reset the interval timer to zero.
d. The reinforcement counter is incremented for all reinforcements.
e. The CS lights and tones are available and turn ON at the intensity selected from 1 - 20 for as long as the
schedule is running.
f. A single Reset pauses the schedule and turns selected outputs OFF. The green status light ashes while
the schedule is paused. The interval value will return to zero when the schedule is paused. Press Run to
continue and Reset to terminate the schedule. Use the Down button to reveal multiple data screens and
the Up button to return to previous screens while the schedule is running or paused. Data will be lost as
soon as the schedule is terminated.
g. The Shock is OFF.
Dierential Reinforcement of High Response Rates (DRH)
This schedule is just the opposite of the DRL and set up uses menu items from both FR and interval schedules.
The task is to complete the FR prior to the interval timing out. Once the interval times out the FR count is
reset to zero.
a. Select acceptable responses and reinforcement options as in previous schedules
b. Ratio Control. Use the Up and Down buttons to set the desired ratio. Press quickly to change values
by 1 unit, hold the button to rapidly increment or decrement the value. The minimum value is 2. The
maximum value is 99.
c. Interval Control. Use the Up and Down buttons to set the desired interval from 0.1 to 99.9 seconds in 0.1
second increments.
d. All press bars, the Omni-directional lever, and the shaping push button increment their respective
counters.
e. The interval timer starts with the rst response and is indicated with the green status light turning ON.
Reinforcement is given only if the FR value is met before the interval times out. Once the interval timer
times out and the green status light turns OFF, the ratio count is reset to zero and the interval timer begins
all over with the next response. Only responses made on the selected/acceptable response(s) increment
the ratio counter.
f. The shaping pushbutton will deliver reinforcement at any time. If the interval timer is running, the interval
value resets to zero and continue to run. The ratio count remains unchanged providing the animal an
opportunity to still meet the contingencies of the schedule.
g. The reinforcement counter is incremented for all reinforcements.
h. The CS lights and tones are available and turn ON at the intensity selected from 1 - 20 for as long as the
schedule is running.
i. A single Reset pauses the schedule and turns selected outputs OFF. The green status light ashes while
the schedule is paused. The ratio count and interval values reset to zero when the schedule is paused.

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Press Run to continue and Reset to terminate the schedule. Use the Down button to reveal multiple data
screens and the Up button to return to previous screens while the schedule is running or paused. Data
will be lost as soon as the schedule is terminated.
j. The Shock is OFF. Auxiliary Outputs #3 and #4 are available.
Chain (CHN)
This two part chain consists of a Response 1 (default setting = omni-directional lever) that activates a CS
(default = Front Left Stimulus Light). An acceptable response 2 (default setting = Front Left Press Bar) in the
presence of the CS delivers a single reward and turns the CS OFF.
a. Any response may be selected for Response 1. Any response may be selected for Response 2 except the
response used for Response 1.
b. All press bars, the Omni-directional lever, and the shaping push button increment their respective
counters.
c. Reinforcement is given only when the chain Response 1 followed by Response 2 is completed.
d. The reinforcement counter is incremented for all reinforcements.
e. The CS lights and tones are available and turn ON at the intensity selected from 1 - 20 when Response 1
occurs. CS is turned OFF as soon as Response 2 occurs and the selected reinforcement device is activated.
f. A single Reset pauses the schedule and turns selected outputs OFF. The green status light ashes while
the schedule is paused. Press Run to continue and Reset to terminate the schedule. Use the Down button
to reveal multiple data screens and the Up button to return to previous screens while the schedule is
running or paused. Data will be lost as soon as the schedule is terminated.
g. The Shock is OFF. Auxiliary Outputs #3 and #4 are available.
Avoidance (AVD)
Press Enter to select Avoidance from the Schedule Selection list and display the rst Set-Up screen. Use the
Up/Down buttons to change the setting and/or press Enter to accept the default setting and proceed to the
next item. When Set-Up is complete, press Run to activate the schedule.
a. One or more acceptable response(s) may be selected to avoid or escape a negative stimulus of shock or
air pu stimulation.
b. One or more stimuli may be selected for the CS interval. Intensities may be set from 0 – 20.
c. Interval Control 1 determines the CS interval and Interval Control 2 determines the UCS interval. Both
may be set from 0.1 to 99.9 seconds in 0.1 second increments.
d. A ‘+’ and ‘-‘ counter is provided for each press bar and the omni-directional lever to separate responses
made during CS + from those made during the UCS -.
e. Counters are provided for presentations of shock and air pu stimulation as well as activations of the
shaping push button.
f. A trial count is provided.
g. A response latency timer is provided with a resolution of 100 ms.. This timer resets at the beginning of
each trial so data must be recorded manually.
h. The shaping push button is used to start each trial. The green status light signals the CS interval while the
red status light signals the UCS interval. The shaping push button may also be used while either CS or UCS
timers are running to terminate a trial.
i. Outputs are turned OFF (except Auxiliary #3 & #4 if selected) and counters frozen between trials.
j. A single Reset pauses the schedule and turns selected outputs OFF. The green status light ashes while
the schedule is paused. Press Run to continue and Reset to terminate the schedule. Use the Down button
to reveal multiple data screens and the Up button to return to previous screens while the schedule is

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running or paused. Data will be lost as soon as the schedule is terminated.
k. Auxiliary Outputs #3 and #4 are available.
Escape (ESC)
Escape set up is similar to Avoidance with a single interval control timer to limit the duration of the negative
reinforcement when an animal fails to respond. Use the Additional Settings Menu to present a light or tone
stimulus concurrent with shock.
a. One or more acceptable response(s) may be selected to escape a negative stimulus of shock or air pu
stimulation.
b. Interval Control 1 determines the UCS interval. It may be set from 0.1 to 99.9 seconds in 0.1 second
increments
c. Counters are provided for all responses. Selected/Acceptable responses can only increment once in any
given trial and may be added together to obtain total escapes.
d. Counters are provided for presentations of shock and air pu stimulation as well as activations of the
shaping push button.
e. A trial count and escape counter are provided.
f. A response latency timer is provided with a resolution of 100 ms.. This timer resets at the beginning of
each trial so data must be recorded manually.
g. The shaping push button is used to start each trial. The red status light signals the UCS interval. The
shaping push button may also be used while the UCS timer is running to terminate a trial.
h. Outputs are turned OFF (except Auxiliary #3 & #4 if selected) and counters frozen between trials.
i. A single Reset pauses the schedule and turns selected outputs OFF. The green status light ashes while
the schedule is paused. Press Run to continue and Reset to terminate the schedule. Use the Down button
to reveal multiple data screens and the Up button to return to previous screens while the schedule is
running or paused. Data will be lost as soon as the schedule is terminated.
j. Auxiliary Outputs #3 and #4 are available.
Auxiliary Output Control
The Auxiliary outputs Aux. 1-4, located on the back panel, are controlled by four PhotoMOS solid state relays
used as switch closures for external devices. The 28 V DC power supply used with the 81335C control may
be accessed at the rear panel terminal strip and used to power auxiliary devices up to a maximum combined
load of 1 Amp.
Specications
Contacts: Type A – COM/NO
Rating: 1 Amp @ 200 V AC/DC
Aux. 1 is wired in parallel with the Left Front Stimulus Light. The FR LF STIM LITE must be fully activated (Level
20) to use Auxiliary 1 to control an alternative stimulus.
Aux. 2 is wired in parallel with the Pellet Reinforcement output. The reward pulse time must be appropriate
to the alternative device connected to this relay.
Aux. 3 is turned on for approximately 50 ms with each “Acceptable Response” selected by the user. This output
was intended for the Step function on old mechanical cumulative recorders, but could be used for other
purposes as well.
Aux. 4 when selected is turned on for the duration of a schedule. This is appropriate for house lights, cubicle
fans, or other devices that need to run continuously while a schedule is active.

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Standard Wire Connections for Model 81335C using Mini I/O
Connection Block Model 80409
The tall stack of terminals behind Outputs 1 – 15 provide +28V DC
+28VDC Connects to:
Red Wires of Stimulus Lights
Red Wires of Sonalert Tone Generators
Red wire of Pellet Dispenser
White wire of Liquid Dispenser
Any other device that requires continuous +28 V DC
The tall stack of terminals behind Inputs 1 – 8 provide Ground (GND)
Ground Connects to:
Black Wires of Press Bars
Black Wire of Omni-Directional Lever (ODL)
Black Wire of Pellet Dispenser
Black Wire of Liquid Dispenser
Any other device that requires continuous Ground
Output terminals 1 - 15
1. FR LF STIM LITE - Black wire of Front Left Stimulus Light
2. FR RT STIM LITE - Black wire of Front Right Stimulus Light
3. PELLET – White wire of Pellet Dispenser
4. LIQUID – Green wire of Liquid Dispenser
5. BK LF STIM LITE – Black wire of the Back Left Stimulus Light
6. BK RT STIM LITE – Black wire of the Back Right Stimulus Light
7. Not Used
8. FR LF STIM TONE – Black wire of Front Left Sonalert Tone Generator
9. FR RT STIM TONE – Black wire of Front Right Sonalert Tone Generator
10. Not Used
11. Not Used
12. Air Pu Control
Note: Other 28 V DC devices may be connected to any “programmed output” and will be activated according
to the settings for that output designation. Maximum combined current 1 Amp.
Input Terminals 1 - 8
1. FR LF PRESS BAR - Red wire of the Front Left Response Lever
2. FR RT PRESS BAR – Red wire of the Front Right Response Lever
3. OMNI-DIRECT LEVER – Red wire of the Omni-Directional Ceiling Rod
4. BK LF PRESS BAR – Red wire of the Back Left Response Lever
5. BK RT PRESS BAR - Red wire of the Back Right Response Lever
6. Not Used
7. Not Used
8. Not Used
Note: Other input devices with switch closure or relay output or GND output may be connected to any
“programmed input” and can be selected according to the settings for that input designation. This includes
the open nose poke and nose poke with single stimulus light.

PO Box 5729 Lafayette, IN 47903 USA . Tel: [phone]
Operant Conditioning Console
14
DB-25 Connections
It is recommended and more convenient to use the 80408 I/O block for connecting to the 81335C Control
Console following the terminal assignments given above. The following pin designations are provided
for those wishing to wire directly to a DB-25 Plug connecting to the rear panel socket labeled Chamber
Connection.
Pin/Function
1. + 28 V DC
2. Output – FR RT STIM LITE
3. Output – LIQUID
4. Output - BK RT STIM LITE
5. Output – FR LF STIM TONE
6.
7. Output – AIR
8.
9.
10.
11. Input – BK LF PRESS BAR
12. Input – FR RT PRESS BAR
13. GROUND
14. Output – FR LF STIM LITE
15. Output - PELLET
16. Output – BK LF STIM LITE
17.
18. Output – FR RT STIM TONE
19.
20.
21.
22.
23. Input – BK RT PRESS BAR
24. Input – OMNI-DIREC LEVER
25. Input – FR LF PRESS BAR

User’s Manual
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Notes
Add any user notes here for your convenience.

PO Box 5729 Lafayette, IN 47903 USA . Tel: [phone]
Operant Conditioning Console
Terms and Conditions
LIC Worldwide Headquarters
Toll-Free: [phone] (USA only)
Phone: [phone]
Fax: [phone]
Email: [email protected]
[email protected] (Outside the USA)
Mailing Address:
Lafayette Instrument Company
PO Box 5729
Lafayette, IN 47903, USA
Lafayette Instrument Europe:
Phone: [phone]
Fax: [phone]
Email: [email protected]
Phone, Fax, Email or Mail-in Orders
All orders need to be accompanied by a hard copy of your purchase order. All
orders must include the following information:
• Quantity
• Part Number
• Description
• Your purchase order number or method of pre-payment
• Your tax status (include tax-exempt numbers)
• Shipping address for this order
• Billing address for the invoice we’ll mail when this order is shipped
• Signature and typed name of person authorized to order these
products
• Your telephone number
• Your email address
• Your FAX number
Domestic Terms
There is a $50 minimum order. Open accounts can be extended to most
recognized businesses. Net amount due 30 days from the date of shipment
unless otherwise specied by us. Enclose payment with the order; charge with
VISA, MasterCard, American Express, or pay COD. We must have a hard copy
of your purchase order by mail, E-mail or fax. Students, individuals and private
companies may call for a credit application.
International Payment Information
There is a $50 minimum order. Payment must be made in advance by: draft
drawn on a major US bank; wire transfers to our account; charge with VISA,
MasterCard, American Express, or confirmed irrevocable letter of credit.
Proforma invoices will be provided upon request.
Exports
If ordering instrumentation for use outside the USA, please specify the country
of ultimate destination, as well as the power requirements (110V/60Hz or
220V/50Hz). Some model numbers for 220V/50Hz will have a “*C” sux.
Quotations
Quotations are supplied upon request. Written quotations will include the price
of goods, cost of shipping and handling, if requested, and estimated delivery
time frame. Quotations are good for 30 days, unless otherwise noted. Following
that time, prices are subject to change and will be re-quoted at your request.
Cancellations
Orders for custom products, custom assemblies or instruments built to customer
specications will be subject to a cancellation penalty of 100%. Payment for up
to 100% of the invoice value of custom products may be required in advance.
Cancellation for a standard Lafayette Instrument manufactured product once
the product has been shipped will normally be assessed a charge of 25% of the
invoice value, plus shipping charges. Resell items, like custom products, will be
subject to a cancellation penalty of 100%.
Exchanges and Refunds
Please see the cancellation penalty as described above. No item may be returned
without prior authorization of Lafayette Instrument Company and a Return
Goods Authorization (RGA#) number which must be axed to the shipping
label of the returned goods. The merchandise should be packed well, insured
for the full value and returned along with a cover letter explaining the reason for
return. Unopened merchandise may be returned prepaid within thirty (30) days
after receipt of the item and in the original shipping carton. Collect shipments
will not be accepted. Product must be returned in saleable condition, and credit
is subject to inspection of the merchandise.
Repairs
Instrumentation may not be returned without rst receiving a Return Goods
Authorization Number (RGA). When returning instrumentation for service,
please call Lafayette Instrument to receive a RGA number. Your RGA number
will be good for 30 days. Address the shipment to:
Lafayette Instrument Company
3700 Sagamore Parkway North
Lafayette, IN 47904, USA.
Shipments cannot be received at the PO Box. The items should be packed
well, insured for full value, and returned along with a cover letter explaining
the malfunction. An estimate of repair will be given prior to completion
ONLY if requested in your enclosed cover letter. We must have a hard copy
of your purchase order by mail or fax, or repair work cannot commence for
non-warranty repairs.
Damaged Goods
Damaged instrumentation should not be returned to Lafayette Instrument
prior to a thorough inspection. If a shipment arrives damaged, note damage on
delivery bill and have the driver sign it to acknowledge the damage. Contact the
delivery service, and they will le an insurance claim. If damage is not detected at
the time of delivery, contact the carrier/shipper and request an inspection within
10 days of the original delivery. Please call the Lafayette Instrument Customer
Service Department for repair or replacement of the damaged merchandise.
Limited Warranty
Lafayette Instrument Company warrants equipment manufactured by the
company to be free of defects in material and workmanship for a period of one
year from the date of shipment, except as provided hereinafter. The original
manufacturer’s warranty will be honored by Lafayette Instrument for items not
manufactured by Lafayette Instrument Company, i.e. resell items. This assumes
normal usage under commonly accepted operating parameters and excludes
consumable products.
Warranty period for repairs or used instrumentation purchased from Lafayette
Instrument is 90 days. Lafayette Instrument Company agrees either to
repair or replace, at its sole option and free of part charges to the customer,
instrumentation which, under proper and normal conditions of use, proves to
be defective within the warranty period. Warranty for any parts of such repaired
or replaced instrumentation shall be covered under the same limited warranty
and shall have a warranty period of 90 days from the date of shipment or the
remainder of the original warranty period whichever is greater. This warranty
and remedy are given expressly and in lieu of all other warranties, expressed or
implied, of merchantability or tness for a particular purpose and constitutes
the only warranty made by Lafayette Instrument Company.
Lafayette Instrument Company neither assumes nor authorizes any person to
assume for it any other liability in connection with the sale, installation, service or
use of its instrumentation. Lafayette Instrument Company shall have no liability
whatsoever for special, consequential, or punitive damages of any kind from any
cause arising out of the sale, installation, service or use of its instrumentation.
All products manufactured by Lafayette Instrument Company are tested and
inspected prior to shipment. Upon prompt notification by the Customer,
Lafayette Instrument Company will correct any defect in warranted equipment
of its manufacture either, at its option, by return of the item to the factory, or
shipment of a repaired or replacement part. Lafayette Instrument Company
will not be obliged, however, to replace or repair any piece of equipment,
which has been abused, improperly installed, altered, damaged, or repaired by
others. Defects in equipment do not include decomposition, wear, or damage by
chemical action or corrosion, or damage incurred during shipment.
Limited Obligations Covered by this Warranty
1. In the case of instruments not of Lafayette Instrument Company
manufacture, the original manufacturer’s warranty applies.
2. Shipping charges under warranty are covered only in one direction. The
customer is responsible for shipping charges to the factory if return of
the part is required.
3. This warranty does not cover damage to components due to improper
installation by the customer.
4. Consumable and or expendable items, including but not limited to
electrodes, lights, batteries, fuses, O-rings, gaskets, and tubing, are
excluded from warranty.
7. Failure by the customer to perform normal and reasonable maintenance
on instruments will void warranty claims.
8. If the original invoice for the instrument is issued to a company that
is not the company of the end user, and not an authorized Lafayette
Instrument Company distributor, then all requests for warranty must
be processed through the company that sold the product to the end
user, and not directly to Lafayette Instrument Company.
Export License
The U.S. Department of Commerce requires an export license for any polygraph
system shipment with an ULTIMATE destination other than: Australia, Japan,
New Zealand or any NATO Member Countries. It is against U.S. law to ship a
Polygraph system to any other country without an export license. If the ultimate
destination is not one of the above listed countries, contact us for the required
license application forms.