Honeywell 621-9937 Parallel I/O

FAQ

Q1: What types of I/O does the 621-9937 support?
It supports both parallel input and output; each channel is configurable.

Q2: Which systems is the module compatible with?
It is designed for Honeywell TDC 3000 and TPS control systems.

Q3: Does each channel have an independent status LED?
Yes, each channel has its own LED status indicator.

Q4: Is there channel-to-channel isolation?
Yes, the module provides electrical isolation between channels and the system.

Q5: Can the number of channels be expanded?
The module supports 16 channels; additional modules can be added for more.

Q6: Does it require an external power source?
No, it is powered through the I/O rack at 5 VDC.

Q7: Is hot swapping supported?
No, hot-swapping is not supported. Power must be off when inserting/removing.

Q8: What are its dimensions and weight?
Dimensions: 264 x 32 x 127 mm; Weight: approx. 0.68 kg.

621-9937 Honeywell Parallel I/O Modules

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