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Input Modules
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Any of these input modules may be set to pulse (also know as transition mode) or level mode of operation. In the pulse mode, switch closures are filtered, contact debounced and latched. A single switch closure sets a latch on the card that is held until read and reset by the computer. In the level mode, only an input that is present when the card is read is recognized. With MED-PC® IV, and Schedule Manager™ software, the level mode produces a count every interrupt (typically 10 ms) for as long as the input “switch” is closed. In general, use pulse mode with response levers or keys to increment a single count for each response, and use level mode with photobeams and nose pokes to determine how long the beam is interrupted or to define beam breaks with specific time values. |
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This standard 8 input module contains eight optically isolated input lines, each with a small status indicator lamp. It features screw terminal connections for normally open switches operating from a 24 to 28 V DC power supply. It also includes jumper settings to invert the input function for normally closed switches.
Dimensions:
0.875" W x 5.25" H x 7.25" D (2.2 cm x 13.3 cm x 18.4 cm) |
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This SuperPort™ 16 input module contains sixteen optically isolated input lines for both normally open and normally closed switches wired to a single DB-25 connector. Use this SuperPort™ 16 input module (DIG-712) with any passive connection panel.
Dimensions:
0.875" W x 5.25" H x 7.25" D (2.2 cm x 13.3 cm x 18.4 cm)
DIG-712F
SuperPort™ Input Module, 10 ms Time Constant
The SuperPort™ 16 input module 10 ms time constant (DIG-712F) has a faster time constant (100 Hz vs. 10 Hz) and is recommended for pigeon keys.
Dimensions:
0.875" W x 5.25" H x 7.25" D (2.2 cm x 13.3 cm x 18.4 cm) |
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The standard 8 input module features eight TTL logic inputs respectively. Each input bit is associated with its own LED indicator. These inputs are compatible with sinking 5 volt TTL logic where a logic 1 is 0 volts and logic 0 is 5 volts. Select transition (pulse) or continuous (level) modes using the on board jumpers. Connections to this module are made via 0.080" (0.2 cm) pin jacks.
Dimensions:
0.875" W x 5.25" H x 7.25" D (2.2 cm x 13.3 cm x 18.4 cm) |
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This SuperPort™ 16 input module features sixteen TTL logic inputs respectively. Each input bit is associated with its own LED indicator. These inputs are compatible with sinking 5 volt TTL logic where a logic 1 is 0 volts and logic 0 is 5 volts. Select transition (pulse) or continuous (level) modes using the on board jumpers. This module also includes jumpers for normal and inverted making it compatible with logic where a logic 1 is +5 volts. Connections to this module are made via a single DB-25 connector.
Dimensions:
0.875" W x 5.25" H x 7.25" D (2.2 cm x 13.3 cm x 18.4 cm)
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Output Modules
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This single width standard 8 output module provides eight 3 A DC drivers designed to activate a 28 V DC device by providing the ground (-28 V) signal. Each output is optically isolated to protect the computer from external noise in the peripheral power supply or environment. Connections are made on a convenient front panel terminal strip. Eight adjacent indicator lamps report the status of each output. Pulse or level modes of operation are selected with individual jumpers for each output. In the level mode, outputs turned on by the computer remain on until turned off by the computer. In pulse mode, outputs remain on for a user-defined duration (from 40 milliseconds to 4 seconds). The
hardware timers are set with a screwdriver through an opening in the front panel for each output.
Dimensions:
0.875" W x 5.25" H x 7.25" D (2.2 cm x 13.3 cm x 18.4 cm) |
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This SuperPort™ 16 output module is a single width module. It features sixteen optically isolated outputs with 3 A solid state DC drivers however, each output operates in a level mode only. The pulse mode was dropped in this later design because that function is now easily covered in software. Connections are made through a DB-25 connector on the front panel. Sixteen LED indicators designated as either P1 (port 1) or P2 (port 2) provide a visual indicator of the status of each output at all times.
Dimensions:
0.875" W x 5.25" H x 7.25" D (2.2 cm x 13.3 cm x 18.4 cm) |
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This relay output module is a single width module contains eight single-pole double-throw relays rated at 2 A, 30 V DC. Both the normally open (NO) and normally closed (NC) contacts are wired to a female DB-25 connector. A mating connector and hood are provided with each module. This module functions in level mode only. Once a relay is activated by the computer, it remains on until turned off by the computer.
Dimensions:
0.875" W x 5.25" H x 7.25" D (2.2 cm x 13.3 cm x 18.4 cm) |
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This standard 8 output module features eight TTL logic outputs respectively. Each output bit is associated with its own LED indicator. These outputs are compatible with sinking 5 volt TTL logic where a logic 1 is 0 volts and logic 0 is 5 volts, and operate in level mode only. A ground (0 volts) is provided at the output when it is turned on. Connections to this module are made via 0.080" (0.2 cm) pin jacks.
Dimensions:
0.875" W x 5.25" H x 7.25" D (2.2 cm x 13.3 cm x 18.4 cm) |
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This SuperPort™ 16 output module features sixteen TTL logic outputs respectively. Each output bit is associated with its own LED indicator. These outputs are compatible with sinking 5 volt TTL logic where a logic 1 is 0 volts and logic 0 is 5 volts, and operate in level mode only. A ground (0 volts) is provided at the output when it is turned on. Connections to this module is made through a DB-25 connector. Both this module and the SuperPort™ input module (DIG-712) are particularly useful in connecting a MED-PC® interface to a SmartCr™ real-time cumulative recorder interface.
Dimensions:
0.875" W x 5.25" H x 7.25" D (2.2 cm x 13.3 cm x 18.4 cm) |
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This unit connects to a standard 28 V DC output card to control a 115 V AC device. It consists of an enclosure that houses two noise-free zero crossover AC relays connected to a standard duplex outlet. Each half of the outlet is independently switched ON/OFF by a separate control line, and each has a green LED to indicate its status. Use with a SmartCtrl™, Standard, or SuperPort™ 28 V DC Output Module. A standard power cord is provided to connect to a properly grounded 115 V AC 60 Hz Outlet. The operate connection is made via a three pin Molex® connector. Order two 3-pin Molex® extension cables (SG-216A-10) to connect to a SmartCtrl™ or passive connection panel. Contact Sales if a 230 V 50 Hz version of this product is required.
Dimensions:
0.875" W x 5.25" H x 7.25" D (2.2 cm x 13.3 cm x 18.4 cm)
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TTL to 28 V DC Adapters
The following adapters have been provided to permit control of a single device, such as a pellet dispenser, from a 5 V TTL output. An internal jumper allows the user to select “active high” to turn on the device when the TTL signal transitions from 0 to 5 Volts or “active low” to turn on the device when the TTL signal transitions from 5 to 0 Volts. Units are shipped from the factory “active low” unless otherwise requested. These devices do not include the 28 V DC power supply, order separately. For small applications we recommend the power supply (SG-501).
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This device requires 5 V DC power from the controlling device. Connections are made via a convenient terminal strip. The output connector is a three-pin mini Molex®, which is compatible with all Med Associates 28 V DC components. The 28 V input connector is a two-pin polarized Molex®.
Dimensions:
5.0" W x 5.0" D x 1.75" H
(12.7 cm x 12.7 cm x 4.4 cm) |
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This device does not require a +5 V connection to the controlling device. It does require connection to 28 V DC. Connections with the TTL device are made via a convenient terminal strip, the output connector is a three-pin mini Molex®, and the 28 V DC input connector is a two-pin polarized Molex®.
Dimensions:
5.0" W x 5.0" D x 1.75" H
(12.7 cm x 12.7 cm x 4.4 cm) |
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This device does not require a +5 V connection to the controlling device. Its connection to the controlling device is made via a standard BNC cable. It requires connection to 28 V DC. The output connector is a three-pin mini-Molex®, and the 28 V DC input connector is a two-pin polarized Molex®.
Dimensions:
5.0" W x 5.0" D x 1.75" H
(12.7 cm x 12.7 cm x 4.4 cm) |
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This device is designed to take a 28 V DC output and convert it to a TTL transition. This may be useful to event mark a separate physiological data acquisition system for example. For multiple TTL outputs, see interface modules with eight and sixteen outputs (DIG-720 and DIG-726TTL) respectively. Connections to this device are made via convenient screw terminals.
Dimensions:
5.0" W x 5.0" D x 1.75" H
(12.7 cm x 12.7 cm x 4.4 cm)
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This PC-compatible PCI interface card can be custom programmed to control startle reflex systems, open field activity systems as well as other Med Associates products such as programmable pumps and aversive stimulation delivery modules. Use the SG-219C-10 cable to complete this connection. If ordering separately, please be sure to specify what the card is to be used for.
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Operant Behavior