Keri Systems SB-293 - Manual (Page 45)

Keri Systems, Inc. Technical Reference Manual – PXL-250 and SB-293
Revision 5.5 P/N: 01836-004 Page 45
9.3 TB-4 – Global Unlock or Auxiliary RTE Input Connection
The global unlock or auxiliary RTE input is used in conjunction with the
programmable input/output feature of the Doors access control software. Refer to the
Inputs section starting on page 32 for more information on general-purpose inputs and
input devices. There are two possible uses for the general-purpose input.
• Global Unlock input (ONLY on the master controller – configured in the Doors
program)
• Auxiliary RTE input for the A-door (configured in the Doors program)
NOTE: The PXL-250 has only one general purpose input. This input can be
configured for either Auxiliary RTE or for Global Unlock – but not both. Determine
which input application best suits the site requirements before installing input
hardware and wiring.
9.3.1 Global Unlock
The normal state of the global unlock input is an open circuit that will be closed when
an input is generated. No voltage is applied at this input; the circuit will change state
(open to closed) to indicate an input event. Refer to the Global Unlock section starting
on page 33 for more information on global unlock. Refer to Table 7 and Figure 9-5 and
make the following connections to attach a global unlock input.
Figure 9-5: Global Unlock Input Connections
Table 7: Global Unlock Input
Connections
TB-4 Description
Pin 5 Ground/Common
Pin 6 Global Unlock Signal