MTS-8DO: 8 Channel Digital Output Module

for Modular Telemetry System                                     specsheet


MTS-8DO Features:

  • 8 Digital Outputs (Relays)
  • (4) SPDT Contacts & (4) SPST Contacts
  • Output Status Indication
  • Selectable Fault Condition State
  • Approvals: ETL 3098704: Class I & II, Div. 2 and Class III, Div. 1&2; UL 508; CSA-C22.2 No. 14-95 

MTS System Features:

  • Bi-directional Communication using License-free 902-928 MHz Radio Band
  • Spread-Spectrum Radio Technology Provides Reliable Communication
  • Modular Design Provides Maximum Flexibility
  • Analog and Digital I/O Modules
  • Expandable to 99 I/O Modules
  • Point-to-Point or Host-to-Multipoint Topologies
  • No Programming Required - Easy to Configure
  • Microprocessor Controlled for High Accuracy
  • Power: 24 VDC, Solar Power, and Others Available
  • Easy Field Installation with Integrated Power/Data Bus


The MTS-8DO is an 8 channel digital output module. It provides digital output capability for an MTS series telemetry system. The MTS-8DO communicates with its counterpart, the MTS-8DI digital input module. The 4 outputs are SPDT (form C) outputs with one Normally-Open and one Normally Closed connection, while the remaining 4 outputs are SPST (form A) outputs with a Normally Open connection. The output status of each channel is indicated individually.

Deployment and installation is as simple as plugging the needed I/O modules into the communications module and assigning unique module IDs. Power and communication for the modules are provided through an integral bus.



  • Outputs: Relay Contacts (4 SPDT, 4 SPST)
  • Contact Rating: 125VAC @ 10A, 277VAC @ 6A, 30VDC @ 5A
  • Power Consumption: 0.5VA (Outputs Open), 4.8VA (Outputs Closed)
  • Contact Arc Suppression: Yes (MOV)

Other Modules

  • MTS-8DI - 8-Channel Digital Input
  • MTS-4AI  - 4-Channel Digital Input
  • MTS-4AO - 4-Channel Analog Output
  • MTS-4DIO - 4-Channel Digital Input/output
  • MTS-RAD - Wireless Communication
  • MTS-PWR - Power Distribution
  • MTS-CEL - Cellular Communications Module
  • MTS-NET - Ethernet Communications Module




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