- Emerson Remote Terminal Unit Instruction Manual

ControlWave Express
Special Instructions for Class I, Division 2 Hazardous Locations
04/24/2006 Appendix A, Document CI-ControlWave Express Page 2 of 2
Table A1 -Module/Board Connector Customer Wiring Connectors (Continued)
Module/Item Connector Wiring Notes
Process I/O Board
TB2: 6-pin Term. Block
DI Interface
Discrete Input Field Wiring: Field I/O wiring
connector is unrated, use Div. 2 wiring
methods. *
Process I/O Board
TB3: 8-pin Term. Block
DO/DI Interface
Discrete Output/Input Field Wiring: Field I/O
wiring connector is unrated, use Div. 2 wiring
methods. *
Process I/O Board
TB4: 8-pin Term. Block
HSC Interface
High Speed Counter Field Wiring: Field Input
wiring connector is unrated, use Div. 2 wiring
methods. *
Process I/O Board
TB6: 9-pin Term. Block
AI Interface
Analog Input Field Wiring: Field Input wiring
connector is unrated, use Div. 2 wiring
methods. *
Process I/O Board
TB7: 4-pin Term. Block
AO Interface
Analog Output Field Wiring: Field Output
wiring connector is unrated, use Div. 2 wiring
methods. *
Note: * = These wires should only be installed/removed when the item (PCB) in question is
installed/removed or when checking wiring continuity. The area must be known to be
nonhazardous before servicing/replacing the unit and before installing or removing PCBs,
Connectors or individual I/O or Power wires. Refer to ¶ 5, 6 & 7 of this document. All input
power and I/O wiring must be performed in accordance with Class I, Division 2 wiring
methods as defined in Article 501-4 (b) of the National Electrical Code, NFPA 70, for
installations within the United States, or as specified in Section 18-152 of the Canadian
Electrical Code for installation in Canada.
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