Keri Systems SB-293, Technical Reference, Page: 20 / 44

Technical Reference Manual – SB-293
01838-002 Rev. 3.0 Printing Date
Page 20 of 32 July-1998
TB-8/TB-9 – General Purpose Input Connections
General-purpose inputs may be used in conjunction with the programmable input/output feature of the
Doors32™ access control software. The normal state of these inputs can be either a closed circuit
that will be opened when an input is generated or an open circuit that will be closed when an input is
generated. No voltage is applied at these inputs; the circuits are either opened or closed to indicate
an input event. Please refer to the General Purpose Input section on page 12 for more information on
general-purpose inputs and input devices.
For examples of typical general purpose input connections, refer to Table 7 and Figure 12 and make
the following connections.
TB-8/TB-9 – Pin . . . Description
* TB-8, Pin 4 general purpose signal – GPI 3
* TB-8, Pin 5 ground/common
TB-8, Pin 5 ground/common
TB-8, Pin 6 general purpose signal – GPI 4
TB-9, Pin 1 general purpose signal – GPI 5
TB-9, Pin 2 ground/common
TB-9, Pin 2 ground/common
TB-9, Pin 3 general purpose signal – GPI 6
TB-9, Pin 4 general purpose signal – GPI 7
TB-9, Pin 5 ground/common
TB-9, Pin 5 ground/common
TB-9, Pin 6 general purpose signal – GPI 8
* only applies if this input has not been configured as an
auxiliary RTE input
Table 7 – General Purpose Input Connections – Two-Door Configuration
For the upper application in Figure 12, a circuit is opened to create an input event at the controller.
For the lower application in Figure 12, the motion detector senses motion and closes a circuit to
create an input event at the controller.
Figure 12 – General Purpose Input Connections – Two-Door Configuration
TB8
1
2
3
4
5
6
Ground/Common
Signal
* Ground/Common to TB-8, Pin 5
* Signal to TB-8, Pin 4
Press Button to Open Circuit
and Activate General Purpose Input
Normally-Closed Input Device
TB9
1
2
3
4
5
6
Ground/Common
Signal
* Ground/Common to TB-9, Pin 5
* Signal to TB-9, Pin 6
* These are examples of possible general-purpose input connections
based on the information in Table 5. Make your input connections
in a similar manner to these, based on the pinouts given in Table 5.
Motion Detector's
Normally Open
Signal Leads
GPI 3
GPI 8
WIRING CONNECTIONS