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THERMAL MANAGEMENT SOLUTIONS
EN-TraceTekTTDM128-IM-H57341 03/13
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right to change specifications without prior notice.
There are 3 ways to connect the TTDM-128 to a host computer:
hard-wired RS-232, hard-wired RS-485, or standard modular RS-
232 cable. For permanent installations, the hard-wired method is
recommended (either RS-232 or RS-485 as necessary). The modu
-
lar RS-232 cable should be used only for temporary connections
by trained technicians.
Make connections.
• Confirm that power to the unit has been shut off.
• Open the enclosure door.
• Feed the end of the communication cable through the gland
plate
br
adapter/bushing into the enclosure.
• Remove the J13 cable plug
cm
from the socket.
For RS-232 connection:
• Connect the RX, TX, RTS, CTS and DGND wire to terminals 5, 6,
7, 8 and 10 respectively.
• Set the host port selector switch
cq
on the User Interface
board
7
to the RS232 position.
For RS-485 connection:
• Connect the positive wire to terminal 5 (RX/A) and the negative
wire to terminal 6 (TX/B).
Set the host port selector switch
cq
on the User Interface
board
7
to the RS485 position.
• Connect the shield wire to the grounding lug
bq
.
• Insert the J13 cable plug back into the socket
cm
.
PL
RS-232
cable
RS-485
cable
DGND
CTS
RTS
TX
RX
PL
RS-485 (–)
RS-485 (+)
SHIELD
SHIELD
power up the system.
After connections are complete, supply power to the unit. The unit
will go through a series of self-tests, and then display the system
status. If the sensing circuit is complete and free of leaks or other
problems, only the green Monitoring LED will illuminate, and the
LCD display will appear similar to that shown at right:
If this is not the case, you can find additional information in the
TTDM-128 Operation and Maintenance Manual (H56853) supplied
with the module.
commissioning
Your system should be commissioned by an authorized TraceTek
representative. The system map is a crucial part of a TraceTek
locating system. The TTDM-128 will give the point along the sens-
ing cable at which liquid has been detected; the map is essential
to show its physical location.
Important:
Store hardware and documentation supplied with the
TTDM-128 in a secure place for later use (commissioning, con-
necting interfaces, operating).
connecting to a Host computer
Start-Up and System Testing
