1794-TB62DS — FLEX I/O Terminal Base, 62-Pin D-Shell, for 32-Point Modules

The 1794-TB62DS is a terminal base unit for the FLEX I/O system, built around a 62-pin D-shell connector specifically for use with 32-point I/O modules. Where standard FLEX I/O terminal bases use individual screw or spring-clamp terminals for each I/O point, this base consolidates the entire 32-point connection set into a single D-shell connector, suited to applications where the field wiring is pre-terminated into a connector harness rather than landed point-by-point on the base.

Specifications

Parameter	Value
Part Number	1794-TB62DS
Platform	FLEX I/O (1794)
Connector Type	62-pin D-shell
Compatible Modules	32-point I/O modules
Current Capacity	5 A per pin, 10 A per module
Mounting	35 mm DIN rail
Enclosure	IP20 / Open style

D-Shell Termination for High-Density I/O

Wiring 32 individual I/O points to discrete screw terminals takes considerably more bench time than connecting a single pre-wired D-shell connector, particularly in OEM machine production where the same I/O configuration repeats across many identical machines. The 1794-TB62DS shifts that labor to a connector harness built once and reused — the field wiring terminates into a 62-pin mating connector rather than 32+ individual screw terminals, cutting wiring time significantly on high-volume builds.

This termination style suits machine builders and system integrators producing multiple identical units where a standardized cable harness can be manufactured in batch and simply plugged in at final assembly, rather than custom-wired panel by panel. For one-off installations or applications where field wiring needs to be added or modified terminal-by-terminal over the machine's service life, a standard screw or spring-clamp terminal base may be more practical despite the additional initial wiring time.

FAQ

Q: Can this terminal base be used with 16-point I/O modules?

No. The 62-pin D-shell connector is specifically sized for 32-point modules. For 16-point modules, a different terminal base with the appropriate pin count and connector type is required.

Q: Is the mating D-shell connector included with this terminal base?

The terminal base provides the connector interface on the module side — the mating field wiring harness with its corresponding D-shell connector is typically sourced or built separately to match the installation's wiring requirements.

Q: Can the 1794-TB62DS be hot-swapped while the system is powered?

No. Terminal base units should not be removed or replaced while power is applied — doing so can interrupt the FLEX I/O backplane communication and result in unintended operation or machine motion.

Q: Does this base support extender cables for splitting a system across two rows?

Yes. Standard FLEX I/O extender cables can be used between this terminal base and adjacent modules or the adapter, allowing the system to be arranged in multiple rows or split into separate physical sections as panel layout requires.

1794-TB62DS Brand New 1794TB62DS Ser A Flex I/O Input Module