Address Switches - Johnson Controls S300 Series Hardware Installation Manual

Hardware Installation
EOL switch
on (up)
CK721/CK722
EOL
always on
CK720/CK705
Baud Rates
The RDR2S-A module supports autobaud operation between 9600 and 19200 bps
and does not require any switch settings.

Address Switches

The RDR2S-A module has 5 address switches (see "Terminal Addressing for
CK721/CK720/CK705 Controllers" on page 18).
(CK721/CK720/CK705 Controllers) Positions 4 to 6: Module address
(CK722 Controllers) Positions 4 to 8: Module address
Ensure that the address of the RDR2S-A does not conflict with the address of any
other device on the RS485 bus.
N
OTE
Before changing the position of the address switches, remove the
12/24 VDC supply power to the RDR2S-A and wait for the Power LED to
go off. Changes will not take effect until after the power is restored.
16
EOL switches
off (down)
RDR2S-A
This document contains confidential and proprietary information of Johnson Controls, Inc.
S300-DIN-RDR2SA Module
EOL switch
on (up)
last module
EOL switches
on (up)
RDR2S-A
24-10239-472 Rev. A
© 2007 Johnson Controls, Inc.