44 MP System Hardware Guide
These transducer connector interfaces (TCIs) have pin plugs on one side and the transducer mating connector on
the other. The following TCIs are available. Or you can use the TCI Kit to make a custom adapter.
TCI100 Grass/Astromed transducers – 6 pin
TCI101 Beckman transducers – 5 pin
TCI102 World Precision Instrument transducers – 8 pin
TCI103 Lafayette Instrument transducers – 9 pin
TCI104 Honeywell transducers – 6 pin
TCI105 Modular phone jack connector – 4 pin
TCI106 Beckman transducers – 12 pin
TCI107 Nihon Koden transducers – 5 pin
TCI108 Narco transducers – 7 pin
TCI109 Fukuda transducers – 8 pin
TCI110 Gould transducers – 12 pin
TCI111 Liquid metal transducers – two 2mm sockets
TCI112 Hokanson transducers – 4 pin
TCI113 Hugo Sachs/Harvard Apparatus — 6 pin
TCI114 “SS” BSL Series Transducers
Important Notes
•
Set REF ADJ pot. On the DA100C: VREF1 to +5V, VREF2 to –5V
• The following SS Series Transducers require multiple channel inputs and therefore
require a corresponding number of TCI114 with a DA100C each:
o SS20L and SS21L Twin-axis Goniometers (2 channels)
o SS26L and SS27L Tri-Axial Accelerometers (3 channels)
o SS31L Noninvasive Cardiac Output Sensor (2 channels)
• The TCI114 interface is designed for SS Series Transducers only
o SS1L, SS1LA, SS2L, or SS29L Electrode Leads and Adapters – not
recommended: signal may be obtained but quality may be impaired.
o SS53L, SS54L, and SS55L Digital Switches – not supported: digital interface
required; use
TSD116 Series Switches & Markers.
o SS58L Low-Voltage Stimulator – not supported.
o OUT1 Headphones – not supported
TCIPPG1 Geer to PPG100C only — 7 pin
Voltage References
The DA100C has two adjustable voltage sources (VREF1 and VREF2) for activating passive sensors like
pressure transducers, strain gauges, thermistors and photocells. The references can be set anywhere from -
5.0 to +5.0 V. GND is at 0 V. VREF1 and VREF2 track each other with opposite polarity, thus a maximum
differential of 10 V is obtainable for driving external transducers. For example, if VREF1 is set to +1.0 V
(with respect to GND), then VREF2 will automatically be set to –1.0 V.
The references can be adjusted using the REF ADJ potentiometer near the bottom of the module. The
voltage references can handle up to 20 mA sourcing or sinking to each other or GND. Pay close attention to
your sensor drive requirements so as to minimize overall current consumption.
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