home email

Polybus International I/O Mudules

Digital Input Blocks

Our line of digital input blocks consists of various isolated and non-isolated blocks. Digital input blocks or GTB's provide a cost effective interface for high-density digital input modules with low voltage ac or dc signals. GTB's are designed to consolidate signal conditioning, reduce installation and wiring costs while improving maintainability, reliability and organization.

Common Features

  • 16 and 32 points per block
  • Replaces intermediate terminal blocks
  • Point annunciation for easy field verification and maintenance.
  • Independent group power and ground
  • High-density without congestion
  • Enhances the features of mating digital input modules
  • Easily mounted to DIN rail or system panels
GTB255d
32 channel digital input module, Sourcing (PNP)
GTB295d
16 channel optoisolated low Vac/dc digital input block, Sourcing (PNP) or sinking (NPN)
P2 32GTB1
32 channel digital input block (Automationdirect.com: D4-32ND3-1, D4-32ND3-2 and D2-32ND3), Sourcing (PNP)

Digital Output Blocks

Our line of digital output blocks consists of various electro-mechanical, triac, solid state and optoisolated solid state relay outputs with large switching capacities. Relay output blocks or RTB's provide a cost effective external relay termination for high-density digital output modules. RTB's are designed to consolidate signal conditioning, reduce installation and wiring costs while improving maintainability, reliability and organization.

Common Features

  • 8 and 16 points per block
  • Replaces intermediate terminal blocks
  • Point annunciation for easy field verification and maintenance
  • Large switching capacities
  • Fused signal power distribution
  • Enhances the features of mating digital output modules
  • Easily mounted to DIN rail or system panels
RTB255d
16 channel relay output block, Sourcing (PNP)
RTB255t
16 channel optoisolated high Vdc or Vac solid state relay output block, Sourcing (PNP)
RTB295t
16 channel digital output block, Sourcing (PNP)
P2 08RTB
8 channel relay output block, Sinking (NPN)
P2 16RTB
16 channel relay output block, Sourcing (PNP) or Sinking (NPN)

Analog Input/Output Blocks

Our line of combination input/output blocks provide a cost effective interface for high-density mixed I/O modules. These blocks are designed to consolidate signal conditioning, reduce installation and wiring costs while improving maintainability, reliability and organization.

Common Features

  • High integration in a small footprint
  • Replaces intermediate terminal blocks
  • Point annunciation for easy field verification and maintenance
  • High-density without congestion
  • Enhances the features of mating Analog I/O modules
  • Easily mounted to DIN rail or system panels
GTB255n
8 channel analog input or output block, 0 to 10 Vdc, +/- 10Vdc, 0 to 20mA, +/- 20mA
GTB255b
8 channels half bridge completion analog input, 4 channels analog output block
GTB255L
8 channels current loop analog input, 4 channels analog output block

Combination I/O Blocks

Our line of combination input/output blocks provide a cost effective interface for high-density mixed I/O modules. These blocks are designed to consolidate signal conditioning, reduce installation and wiring costs while improving maintainability, reliability and organization.

Common Features

  • High integration in a small footprint
  • Replaces intermediate terminal blocks
  • Point annunciation for easy field verification and maintenance
  • High-density without congestion
  • Easily mounted to DIN rail or system panels
GTB295m
s5-95U Master I/O Module

Simulator Blocks

Our line of simulator units were designed to demonstrate the virtues of the compatible PLC by exercising it's analog and digital I/O. These units can also test the integrity of the PLC's I/O and simplify software development time by simulating the I/O.

Common Features

  • System Demonstration
  • Software development exercising
  • Hardware evaluation/functionality testing
  • Easy-to-use portable units
DTB295
S5-95U simulator unit (all onboard I/O)
DTB200a
S7-200 analog simulator

Pricing and Information

Consult Factory 1-800-426-4815

1727 Via Rancho San Lorenzo, CA 94580 - 1-510-276-7103