User's Manual Part 1

Electronic Instrument Installation
TDC-0838-001 2.4GZ OpenWay Gas Module Installation Guide - Remote Mount 45
Proprietary and Confidential
Connections to the three output pulse channels are completed using loose unterminated wires (the individual
wires from a cable) and gel-connectors. The TCI unit has six unterminated wires and six gel-connectors (Itron
part number CON-0023-001) to enable pulse connections to ancillary devices. Loose wires are located inside
the gray adapter plate behind the black strain relief fitting.
Adapter plate with black strain relief Loose cable wires
The three switch contacts on the TCI PC board are MOSFET output type opto-isolators that provide high
voltage isolation between the sensitive processor components of the TCI board and the outside world.
Wire Color
Description
Function
Orange
Volume output channel A
Comp/uncomp volume pulse
Yellow
Volume output channel A
(configurable pulse timing)
White
Volume output channel B
Comp/uncomp volume pulse
Green
Volume Output channel B
(configurable pulse timing)
Brown
Alarm channel
Alarm event signal
Blue
Alarm channel
(Pulse timing)