Johnson Controls S300 Series - Page 7

RDR2S-A and I8O4 Hardware Installation Introduction
24-10239-596 Rev. D
3
The OSDP reader support includes communicating reader status.
Figure 2: System Diagram for OSDP Implementation Version 1
RDR8S
(PS-218)
E F G H
A B C D
CK721-A Controller
A B
Wiegand
reader
OSDP V1
reader
RDR2S-A
(PS-217)
A B
OSDP V1
reader
OSDP V1
reader
Wiegand
reader
Note: The RDR2S-A can support up to two
OSDP readers or two Wiegand readers.
You cannot mix the two types of reader.