User's Manual

AC2000 Getting Started Guide
15
3.3 The Input/Output Board
The input/output board provides connections points for terminal power, inputs, outputs,3rd
party Wiegand read heads, communications with exit readers and door interface units.
Figure 10 Illustration of the Input/Output board
Component Description
A. Wiegand interface Interface for third party exit heads using Wiegand protocol.
B. Output 0 switch Switches output 0 between internal 12V provided and voltage not
provided relay that uses external power.
C. DC12V 12V power, either from a CEM Door Interface Unit or an appropriate
power source is supplied via this connector.
D. Output 0 Lock output, either 12V provided by the terminal or 12/24V provided
externally via the relay.
E. Ribbon connector Links the I/O PCB to the front PCB.
F. Output 1 Spare output. The output is also used when configuring the reader in
interlock mode.
G. Output 1 switch Switches output 1 between internal 12V provided and voltage not
provided relay that uses external power.
H. Comms to exit/DIU Serial communications to a CEM exit reader such as the S610s or a Door
Interface Unit
I. Input connectors Connection points for monitored inputs such as door position, lock sense
and request to exit switches.
Table 9: Description of I/O board components
H. Comms to
exit/DIU
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
I. Input
connectors
C. DC12V
C. DC12V