CK721-A Version 3.0 Factory Field Upgrade Manual
10 24-10025-59 Rev. –
This document contains confidential and proprietary information of Johnson Controls, Inc.
© 2010 Johnson Controls, Inc.
To install the CK721-A Version 3.0 firmware:
1. Launch Tera Term Pro to establish a T
elnet login session to the CK721-A
controller.
2. Cycle power to the CK721-A by unplugging the power
connector and then
re-plugging it into the CK721-A power port (see Figure 1 on page 3).
If the controller is already powered down, simply plug in the connector to
power up the controller
.
3. When the following message appears, pr
ess <S> within 10 seconds.
If this message does not appear, the CK721-A controller cannot be updated
due to a hardware problem. Contact Johnson Controls Technical Support at
(805) 582-3117 between the hours of 8:00 a.m. to 5:00 p.m. Pacific Time,
Monday through Friday, for assistance.
If the 10 second time period expires before pressing <S>, cycle the pow
er
on the CK721-A controller. Wait for the message to appear again and press
<S>.
If you press <S> wi
thin the specified time, a “Download now” message
appears.