Connecting To A Host Computer - Pentair TRACETEK TTDM-128 Installation Instructions Manual

CONNECTING TO A HOST COMpUTER

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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 p ermanent installations, the hard-wired method is
recommended (either RS-232 or RS-485 as necessary). The modular RS-232 cable should be used
only for temporary connections by trained technicians.
Make connections.
WARNING:
Shock hazard. Disconnect from live voltage prior to opening enclosure door.
• 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
enclosure.
• Remove the J13 cable plug
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
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
• Connect the shield wire to the grounding lug
• Insert the J13 cable plug back into the socket
PL

PL

EN-TraceTekTTDM128-IM-H57341 04/16
from the socket.
cm
on the User Interface board
cq
on the User Interface board
cq
.
bq
.
cm

SHIELD
DGND
RS-232
CTS
cable
RTS
TX
RX

RS-485
SHIELD
RS-485 (–)
cable
RS-485 (+)
adapter/bushing into the
br
to the RS232 position.
7
to the RS485 position.
7
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