User's Manual

emerald Quick Installation Guide
13
3.3 The Input/Output Board
The input/output board provides connections points for terminal power, inputs, outputs, and
third party Wiegand read heads.
Figure 10 Illustration of the Input/Output board
Component Description
A. Wiegand interface Interface for third party exit read-heads using Wiegand protocol.
B. Output 0 state switch Switches output 0 relay common ‘C’ between internal 12V or an external
12/24V UL294 or UL603 listed power supply.
C.12V and 0VDC 12V power from an appropriate UL294 or UL603 listed power source is
supplied to the terminal. 12V can also be drawn from this circuitry to
power attached door furniture.
D. Output 0 Lock output, either 12V provided by the terminal or 12/24V provided
externally via the relay and a UL294 or UL603 listed power supply.
E. Ribbon connector Links the I/O PCB to the front PCB.
F. Output 1 Spare output.
G. Output 1 state switch Switches output 1 relay common ‘C’ between internal 12V or an external
12/24V UL294 or UL603 listed power supply.
H. Input connectors Connection points for monitored inputs.
I. RS232 J1 has no functional impact/use on this product version and is not
supported for use on UL installations.
Table 9: Description of I/O board components
G. Output 1
state switch
B. Output 0
state switch
A. Wiegand
read head
interface
D. Output 0
(lock)
F. Output 1
(spare)
E. Ribbon
connector
H. Input
connectors
C. 12VDC
C. 12VDC
I. RS232
(Not Used)