Operating Instructions

Operating Instructions
Document No. 155-740
July 14, 2003
Controller Continuity Tester
Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and
models as design improvements are introduced.
LONMARK is a trademark of Echelon Corporation registered in the United States and other
countries. Product or company names mentioned herein may be the trademarks of their respective owners. © 2003 Siemens Industry, Inc.
Siemens Industry, Inc.
Building Technologies Division
1000 Deerfield Parkway
Buffalo Grove, IL 60089
+ 1 847-215-1000
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Document No. 155-740
Printed in the U.S.A.
Page 1 of 1
Product Description
The Controller Continuity Tester (CCT) is an
inexpensive test device used to check Terminal
Equipment Controller (TEC) Room Sensor cables
that utilize an RJ-11 connector.
This tool will diagnose any cable listed in Table 1.
Table 1. Room Sensor Cable Part Numbers.
Plenum Cable Non-plenum
Cable
588-100A
540-135
540-130
588-100B
540-136
540-131
588-100C
540-137
540-132
NOTES: 1. The CCT will not diagnose TEC Room
Sensor malfunctions.
2. The CCT will not function if the cable is
connected to a
LONMARK
®
compliant
Terminal Equipment Controller (LTEC).
Product Number
540-970
Required Tools
540-142 Single to Twin Modular Adapter Cable
"Splitter"
Operation
The CCT is powered by the internal voltage of the
TEC; it does not contain a battery.
The red LED checks the continuity of the TX/RX.
The yellow and green LEDs check the sensor and
setpoint, respectively
Figure 1. Controller Continuity Tester.
With proper connections and continuity the following
conditions exist:
Table 2. LED Indicators.
LED State Condition
Red LED lit Proper connections are
made to transmit or receive
Green LED lit
Sensor is polled
Yellow LED lit
Setpoint is polled
Green and Yellow LEDs
toggle off and on
Unit is operating properly
Instructions
1. Disconnect the RJ-11 connector from the back
of the room sensor.
2. Plug the TEC cable into one end of the splitter.
3. Plug the CCT into the other end of the splitter.
4. Evaluate cable integrity by the LED status.
Testing is now complete.
The tool can be plugged into the sensor's MMI port
without removing the sensor. However, only the red
LED will operate, indicating the presence of the
TX/RX signal.