NTI Enviromux, Enviromux-DI16DOR16, Enviromux-DI16DO16 Installation Manual

®

ENVIROMUX

Series

ENVIROMUX-DI16DO(R)16

Digital Input/Output Expander
Installation Manual

The ENVIROMUX-DI16DO(R)16 Digital Input/Output Expander enables the connection of up to 16 additional digital sensors and
output devices using just one RJ45 Sensor port on an ENVIROMUX-2D, ENVIROMUX-5D, or ENVIROMUX-16D Server
Environment Monitoring System (SYSTEM).

The ENVIROMUX-DI16DO16 includes digital outputs with an open-collector design for the control of up to 16 relays, solenoids,
LEDs, and other devices that operate at voltages between 0-24VDC (maximum 500mA).

The ENVIROMUX-DI16DOR16 includes digital outputs with a normally-open SPST relay design for the control of up to 16 different
devices that operate at a maximum125VAC (0.5A maximum) or maximum 30VDC (1.0A maximum).

Features

The ENVIROMUX-DI16DO16 and ENVIROMUX-DI16DOR16 have many features in common, and several differences, detailed
below:

Features in common:

• Interfaces with the SYSTEM via the RJ45 Sensor Port

• Digital inputs:

o 16 screw terminal pairs for connecting dry contact devices

 One screw terminal pair for tachometer; 0 to 255 Hz

o Accepts 26 to 16AWG wire
o Potential free
o Voltage range: 0 to +36VDC
o Over-voltage surge protected

• Supports 18-24AWG CAT5/5e/6 cable up to 500 ft. (152.4 m)

Feature differences:

Feature ENVIROMUX-DI16DO16 ENVIROMUX-DI16DOR16
Digital outputs

Power supply

Dimensions (WxDxH)

• 16 screw terminal pairs for open-

collector outputs

• Accepts 26 to 16AWG wire

• Rated sink current: 500mA per output

• +5VDC, 22kΩ pull-ups

• Voltage range: 0 to +24VDC

• Over-voltage surge protected

Requires 75mA at 5VDC (Powered by
SYSTEM)

6.49x3.10x1.08 in (165x79x27 mm) 6.49x3.10x1.78 in (165x79x45 mm)

ENVIROMUX-DI16DO16 (Front and Rear View)

ENVIROMUX-DI16DOR16 (Rear View)

• 16 screw terminal pairs for normally-open relay
contact outputs

• Accepts 26 to 16AWG wire

• Potential free

• Rated switching load: 0.5A @ 125 VAC, 1.0A @

±30VDC

• Fused

Includes 120VAC or 240VAC at 50 or 60Hz-5VDC/3.0A
AC Adapter

1

Installation

1. Connect the Expander to the SYSTEM using up to 500 feet (152.4 m) of 18-24AWG CAT5, 5e, or 6 cable.

2. Dry contact sensors can then be connected to the
Expander using 26-16AWG wire. Up to 16 sensors
can be connected.
Two-wire switch-only type sensors can be connected to
the plus (+) and ground ( ) terminals of each of 16 sets
of terminals.

Terminal pair 1 is specially designed for connection of
a tachometer/anemometer with a range of 0-255Hz (like
the ENVIROMUX-WSS Wind Speed Sensor).

2

3a. Digital Outputs on the ENVIROMUX-DI16DO16 have an open-collector design for the control of up to 16 relays, solenoids,
LEDs, and other devices that operate at voltages between 0-24VDC (maximum 500mA). Devices connected to Dig ital Outputs
will display in the “Remote Output Relay” list in the SYSTEM web interface for assignment to sensor alert responses.

3b. Output Relays on the ENVIROMUX-DI16DOR16 have a normally-open SPST relay design for the control of up to 16 different
devices that operate at maximum 125VAC (0.5A maximum) or maximum 30VDC (1.0A maximum). Devices connected to
Output Relays will display in the “Remote Output Relay” list in the SYSTEM web interface for assignment to sensor alert
responses.

View of “Remote Output Relay” list on
the web interface Summary Page

(Output Relays from two ENVIROMUX­DI16DO16 are shown)

3