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C2N-UNI8IO

Universal Keypad Interface

Installation & Operation Guide

Additional Resources

Visit the product page on the Crestron website (www.crestron.com)

for additional information and the latest rmware updates. Use a QR

reader application on your mobile device to scan the QR image.

Hardware Hookup

The following diagram shows a C2N-UNI8IO in a lighting and AV system application.

Connectors, Controls, and Indicators

The following diagram shows a C2N-UNI8IO in a lighting and AV system application.

Wiring Diagrams

CAUTION: Shorting non-current limited supplies may cause damage to the outputs

on the unit.

Internal 5V LED Driver (Internal 5 mA 5 V Current Limit)

NOTE

: Dip switches must be in the OFF position.

NOTE: Internal 5 mA 5 V current limit can be enabled or disabled on an individual

basis.

Description

The Crestron

C2N-UNI8IO is a compact interface designed to allow virtually any keypad

to be connected directly to a Cresnet

control network. The Cresnet network is the

communications backbone for Crestron sensors, dimmers, keypads, touch panels,

shade controllers, thermostats, and many other devices. This exible 4-wire bus provides

data communications and 24 Vdc power for all of the devices on the Cresnet network.

The C2N-UNI8IO installs easily at the keypad location, sitting conveniently inside the

electrical box behind the keypad. Wiring connections to the network are made using a

detachable terminal block connector. Wiring connections to the keypad can be made

using the provided connectors with ying leads, or the keypad manufacturer can choose

to mate directly to the exposed connectors.

The C2N-UNI8IO is compatible with most keypads that provide contact closures as user

inputs and use LEDs for feedback. Up to 1 A @ 24 Vdc power and 40 mA @ 5 Vdc is

available to support a variety of keypads. The C2N-UNI8IO includes eight sensing inputs,

each capable of sensing a contact closure. The C2N-UNI8IO also includes eight

open-drain outputs capable of sinking up to 100 mA each (500 mA maximum total

current). Also provided are eight current-limiting resistors that can be switched in series

with each channel to limit the output current to 5 mA @ 5 Vdc.

Specications for the C2N-UNI8IO are listed below.

Installation

WARNING: To avoid re, shock, or death, turn off the power at the circuit breaker or

fuse and test that the power is off before wiring!

NOTE: Observe the following points:

• Install and use this prodcut in accordance with appropriate electrical codes and

regulations.

• A licensed electrician must install this product.

NOTE: Before using the C2N-UNI8IO, ensure the device is using the latest rmware.

Check for the latest rmware for the C2N-UNI8IO at www.crestron.com/rmware. Load

the rmware onto the device using Crestron Toolbox™ software.

The C2N-UNI8IO can be installed inside a standard electrical box. Refer to the following

illustration.

Installing the IDC Connector and the Cresnet Connector

OUTPUT

INPUT

G G 1 2 3 4 5 6 7 8

5V 1 2 3 4 5 6 7 8 24V

Third-party keypad

C2N-UNI8IO

Control

processor

A/V

system

Lighting

system

Cresnet

Multiwire cable

OUTPUT

INPUT

Removing the IDC Connector

Use a at-blade screwdriver to loosen the IDC connector from the header. Place the

at-blade screwdriver between the header and midsection of the connector. Turn the

screwdriver to pry the IDC connector up.

Using a Third-Party Keypad

OUTPUT

INPUT

G G 1 2 3 4 5 6 7 8

5V 1 2 3 4 5 6 7 8 24V

GND

LED

1 2 3 4 5

2.05 in

(52 mm)

0.51 in

(13 mm)

2.13 in

(54 mm)

0.69 in

(18 mm)

2.07 in

(53 mm)

SPECIFICATION DETAILS

Power Requirements

Cresnet Power Usage 0.5 W (0.02 A @ 24 Vdc)

Does not account for LED, bulbs, or other device's

power consumption.

Ratings

Digital Inputs (8) Inputs rated for 0-24 Vdc, includes 10 KΩ pull-up

to 5 Vdc

Logic low threshold: ≤1 V

Logic high threshold: ≥3.7 V

Digital Outputs (8) Open drain outputs rated for 100 mA @ 24 Vdc,

500 mA max (combined for all 8 outputs), when not

in Current Limit mode

Maximum Power Load: 1 A @ 24 Vdc and

40 mA @ 5 Vdc. Actual load capability dependent

upon the amount of available Cresnet power in the

system.

Environmental

Temperature 32°F to 104°F (0°C to 40°C)

Humidity 10% to 95% RH (noncondensing)

Dimensions

Height 2.06 in (53 mm)

Width 2.05 in (52 mm)

Depth 0.68 in (18 mm)

Weight 1 oz (24 g)

# CONNECTORS,

CONTROLS, AND

INDICATORS

DESCRIPTION

1 SETUP (1) Red LED and (1) miniature push button, used

for touch-settable ID (TSID)

2 OUTPUT CURRENT

LIMIT

(1) 8-position DIP switch, engages 1 K ohm

current limiting resistor per output, limits each

output to 5mA @ 5VDC for use with LEDs

NOTE: When in “current limit” mode, be sure to

not exceed the above rating.

3 NET (1) 4-pin 3.5mm detachable terminal block;

Cresnet slave port, connects to Cresnet control

network

4 OUTPUT (1) 10-pin 0.1” IDC connector, includes (10) single

conductor 22 AWG 3” ying leads Outputs

comprised of (1) 24VDC, (1) 5VDC, and (8) digital

outputs (referenced to GND)

Note: 24V connector is a Cresnet power pass-

through.

5 INPUT (1) 10-pin 0.1 in (3 mm) IDC connector comprised

of (10) single-conductor 22 AWG 3 in (76 mm)

ying leads

Inputs comprised of (2) GND references and (8)

digital inputs (referenced to GND)

Produktspecifikationer

Varumärke:	Crestron
Kategori:	ej kategoriserat
Modell:	C2N-UNI8IO
Produktens färg:	Svart
Antal per förpackning:	1 styck
Spindellängder som stöds (max):	- mm