Catalogs > Automation Systems Catalog > I/O > In-Cabinet Distributed I/O > 1734 POINT I/O
1734 POINT I/O
| Introduction |  |
Product Design | |
Environmentals and Certifications | |
I/O Adapter and Communication Interface Modules | |
1734D POINTBlock I/O Modules | |
| Digital I/O Modules | |
Analog I/O Modules | |
Specialty I/O Modules | |
Power Supplies | |
Terminal Base Assemblies and RTBs | |
A Terminal Base Assembly consists of a POINT I/O mounting base and a separate removable terminal block (RTB) that plugs into the mounting base. The base mounts directly on the DIN rail, either vertically or horizontally, and includes user-selectable mechanical keying to prevent incorrect I/O module placement. The RTB plugs into the mounting base and provides the terminal locations for field wiring. It also provides vertical access to wire and screw terminations. The I/O module plugs into the mounting base above the RTB. The RTB separates independently from the mounting base and I/O module to facilitate rapid installation and commissioning of the system. Spare or replacement RTBs can be ordered separate from the terminal base assembly.
Alternatively, a POINT I/O one-piece mounting base, which includes integrated terminal locations, is also available. The I/O module plugs into the one-piece mounting base.
Terminal Base Assemblies
| Cat. No. | Description | Number of Terminations | Termination Type |
| 1734-TB | Two-piece terminal base assembly. Includes a POINT I/O mounting base and separate RTB. |
8 | Screw-clamp |
| 1734-TBS | 8 | Spring-clamp | |
| 1734-TB3 | 12 | Screw-clamp | |
| 1734-TB3S | 12 | Spring-clamp | |
| 1734-TBCJCT | Cold-junction compensation wiring base assembly | Screw-clamp | |
| 1734-TOP | One-piece POINT I/O mounting base with integrated terminal locations. | 8 | Screw-clamp |
| 1734-TOPS | 8 | Spring-clamp | |
| 1734-TOP3 | 12 | Screw-clamp | |
| 1734-TOP3S | 12 | Spring-clamp | |
| T Use the cold-junction compensation wiring base assembly with the 1734-IT2I thermocouple input module. | |||
Removable Terminal Blocks
Use this table to select spare or replacement RTBs.
| Cat. No. | Description | Field Power Supply Voltage Range | Field Power Supply Current, Max. | Wire Size | Wiring Category | Terminal Base Screw Torque |
| 1734-RTB | 8-terminal screw-clamp RTB | 24V DC, 120/240V AC | 10 A | 14 AWG (2.5 mm2) … 22 AWG (0.25 mm2) solid or stranded wire rated at 75 °C or higher; 3/64 in (1.2 mm) insulation max. |
2 T | 0.6 N•m (7 lb•in) |
| 1734-RTBS | 8-terminal spring-clamp RTB | |||||
| 1734-RTB3 | 12-terminal screw-clamp RTB | |||||
| 1734-RTB3S | 12-terminal spring-clamp RTB | |||||
| 1734-RTBCJC | cold-junction compensation RTB, screw-clamp | 0.5…0.6 N•m (5…7 lb•in) | ||||
| ¬ Use the 1734-RTBCJC cold-junction compensation RTB with the 1734-IT2I thermocouple input module. T Use this conductor category information for planning conductor routing. Refer to publication 1770-4.1, “Industrial Automation Wiring and Grounding Guidelines.” |
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Termination Modules
The POINT I/O Common Terminal Module and Voltage Terminal Module provide expansion of the termination capability of POINT I/O. The modules support higher density (8 channel) POINT I/O modules and management of wiring of field devices to the POINT I/O solution.
| Cat. No. | Description | Quantity |
| 1734-CTM | Common Terminal Module. Single-slot 12 mm wide Common Terminal Modules. | 10 |
| 1734-VTM | Voltage Terminal Module. Single-slot 12 mm wide Voltage Terminal Modules. | 10 |
| Cat. No. | Keyswitch Position | Isolation Voltage | Field Power Supply Voltage Range | Field Power Supply Current, Max. |
| 1734-CTM | 5 | 250V (continuous), Basic Insulation Type Type tested at 1600V DC for 60 s, field-side to system |
10…28.8V DC, 120/240V AC | 2 A per point, 4 A module |
| 1734-VTM |