User's Manual

Electronic Volume Corrector and Instrument Installation
TDC-0824-003 100G Datalogging FN ERT Module Installation Guide - Remote Mount 41
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)
To make TCI pulse connections
Note Connect one ERT module/channel to the alarm output if the modules are used on channels A and B.
1. Remove strain relief fitting by unscrewing from the gray adapter plate.
Note Do not remove the fitting's hex nut. Un-screw the entire fitting from the gray adapter plate. A
tether line is secured to the strain relief fitting. When the strain relief fitting is removed, the tether line
pulls the unterminated wires out of the adapter plate for access to the loose wires.
2. Loosen the strain relief fitting hex nut and remove the white plug from the center.