Allen-Bradley 1794-TB62DS I/O Terminal Base Unit
The Allen-Bradley 1794-TB62DS, also cataloged as the 1794-TB62DS Terminal Base Unit, operates as a dedicated hardware component for field signal termination and module backplane interfacing within Allen-Bradley Flex I/O systems. The unit provides a 62-pin D-shell interface to connect high-density field wiring harnesses to inserted Flex I/O functional modules.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1794-TB62DS |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.37 lbs (0.17 kg) |
| Dimensions | Standard Flex I/O Base Dimensions |
| Operating Temp | 0 to 55 deg C |
| Power Consumption | Passive Terminal Base Component |
| Interface Connector | 62-pin D-shell female connector |
| Enclosure Rating | IP20 |
| Mounting Type | TS35 DIN rail or panel mount |
| Product Category | Terminal Base Unit / Panel Accessory |
Backplane Bus Communication Velocity & EtherNet/IP Networks
The 1794-TB62DS terminal base establishes the physical path for the internal Flexbus backplane, facilitating deterministic communication between attached I/O modules and EtherNet/IP adapter interfaces. Integrating a 62-pin D-shell termination layout enables rapid disconnect and high-density signal consolidation, reducing wiring latencies and panel footprint in multi-channel control racks. Electrical isolation barriers built into the base chassis safeguard signal pathways against inter-channel crosstalk and high-frequency backplane electrical interference.
Frequently Asked Questions
Q: What physical field wiring connection style is used on the 1794-TB62DS base unit?
A: The module features an integrated high-density 62-pin D-shell female connector for direct connection to pre-wired harness assemblies.
Q: What ingress protection rating applies to the 1794-TB62DS chassis?
A: The terminal base unit carries an IP20 environmental enclosure rating, requiring installation within a protective enclosure.
Q: How is the 1794-TB62DS terminal base mechanically mounted in a control cabinet?
A: The unit snaps directly onto standard TS35 DIN rails or can be fastened directly to an enclosure backpanel using mounting screw holes.
Field Installation Guidelines
- Snap the 1794-TB62DS terminal base unit onto a grounded TS35 DIN rail, or secure it to the panel using appropriate mounting screws.
- Slide adjacent terminal base units together on the rail to interlock the Flexbus backplane connectors before inserting functional I/O cards.
- Attach the pre-wired 62-pin D-shell cable assembly to the terminal base connector, tightening retaining screws to secure the interface.
- Ground the DIN rail or mounting plate continuously to provide a low-impedance path for noise suppression and electrostatic discharge.
- Set the module mechanical keyswitch on the terminal base to the required position for the intended I/O module prior to module insertion.
Allen-Bradley 1794-TB62DS I/O Terminal Base Unit
Allen-Bradley 1794-TB62DS I/O Terminal Base Unit
The Allen-Bradley 1794-TB62DS, also cataloged as the 1794-TB62DS Terminal Base Unit, operates as a dedicated hardware component for field signal termination and module backplane interfacing within Allen-Bradley Flex I/O systems. The unit provides a 62-pin D-shell interface to connect high-density field wiring harnesses to inserted Flex I/O functional modules.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1794-TB62DS |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.37 lbs (0.17 kg) |
| Dimensions | Standard Flex I/O Base Dimensions |
| Operating Temp | 0 to 55 deg C |
| Power Consumption | Passive Terminal Base Component |
| Interface Connector | 62-pin D-shell female connector |
| Enclosure Rating | IP20 |
| Mounting Type | TS35 DIN rail or panel mount |
| Product Category | Terminal Base Unit / Panel Accessory |
Backplane Bus Communication Velocity & EtherNet/IP Networks
The 1794-TB62DS terminal base establishes the physical path for the internal Flexbus backplane, facilitating deterministic communication between attached I/O modules and EtherNet/IP adapter interfaces. Integrating a 62-pin D-shell termination layout enables rapid disconnect and high-density signal consolidation, reducing wiring latencies and panel footprint in multi-channel control racks. Electrical isolation barriers built into the base chassis safeguard signal pathways against inter-channel crosstalk and high-frequency backplane electrical interference.
Frequently Asked Questions
Q: What physical field wiring connection style is used on the 1794-TB62DS base unit?
A: The module features an integrated high-density 62-pin D-shell female connector for direct connection to pre-wired harness assemblies.
Q: What ingress protection rating applies to the 1794-TB62DS chassis?
A: The terminal base unit carries an IP20 environmental enclosure rating, requiring installation within a protective enclosure.
Q: How is the 1794-TB62DS terminal base mechanically mounted in a control cabinet?
A: The unit snaps directly onto standard TS35 DIN rails or can be fastened directly to an enclosure backpanel using mounting screw holes.
Field Installation Guidelines
- Snap the 1794-TB62DS terminal base unit onto a grounded TS35 DIN rail, or secure it to the panel using appropriate mounting screws.
- Slide adjacent terminal base units together on the rail to interlock the Flexbus backplane connectors before inserting functional I/O cards.
- Attach the pre-wired 62-pin D-shell cable assembly to the terminal base connector, tightening retaining screws to secure the interface.
- Ground the DIN rail or mounting plate continuously to provide a low-impedance path for noise suppression and electrostatic discharge.
- Set the module mechanical keyswitch on the terminal base to the required position for the intended I/O module prior to module insertion.
