GE 90-30 PLC Series Installation And Hardware Manual page 404

Terminal Block Quick Connect Components
Appendix
H
This appendix describes the optional terminal block components for Series 90-30 discrete I/O
modules. This system is referred to as the Terminal Block Quick Connect (TBQC) system. The
advantage of this system, is that it allows the listed discrete I/O modules to be quickly connected to
TBQC terminal blocks. In this system, the TBQC terminal block (shown below) is snapped onto a
standard DIN-rail. Then, a factory-made cable is connected between the terminal block's
connector and the I/O module's connector. An I/O module that has a terminal board instead of a
connector is converted into a connector type using an adapter faceplate.
The TBQC system is not recommended for use with Analog modules because it does not meet the
shielding recommendations for Analog module connections. (See the Series 90-30 PLC I/O
Module Specifications Manual, GFK-0898, for Analog module wiring information.)
This appendix contains two sections, one for discrete 16-point I/O modules and one for discrete 32-
point I/O modules.
Connector (Male Pins)
a45586A
2 20
1 19
"Box" Terminals
Figure H-1. Typical TBQC Terminal Block
GFK-0356Q H-1