User's Manual

Contact Closure Input and Relay Connections

Contact closure input connections

The IPL T CR48 can be connected to any relay providing a closure to ground (closed = logic 1

and open = logic 0). The contact closure inputs are connected to 5 VDC via a 1k ohm

pull-up resistor and must be wired with a ground. This allows the input to be tied to devices

such as motion detectors and alarms. You can deﬁne what this input triggers via control

software.

1. Connect one end of the input cable to a 3.5 millimeter, 5-pole captive screw connector,

wired appropriately, and plug it into the rear panel input port connector of the unit.

2. Connect the other end of the input cable to the input relay device that will provide a

triggering signal.

Relay connections

The IPL T CR48 can be connected to any device that can be activated by a relay closure. This

allows the relay to be tied to devices such as lights (preset recall), projector lifts, and screen

or drape controllers. You can deﬁne what triggers this action via control software.

1. Connect one end of the relay cable to an 8-pole captive screw connector, wired

appropriately, and plug it into the rear panel relay port connector of the unit.

2. Connect the other end of the relay cable to the device that will be activated when the

triggering signal is received.

Conﬁguring the Hardware

To function together properly, both the controlling PC and the IPL T CR48 must be

conﬁgured correctly. The PC must be network-capable, with the proper protocols installed

and the hardware conﬁgured correctly. The IPL T CR48 must be set to recognize and accept

commands and pass them through to the projector lift, screen lift, or other controlled device.

PC Conﬁguration

This guide assumes that you have a Microsoft

Windows

PC equipped with an operating

network adapter. To allow your PC to work with Extron Ethernet-controlled products, the

TCP/IP protocol must be installed and properly conﬁgured.

For use on an existing Ethernet LAN intranet, your network administrator can provide you

with a unique IP address or conﬁrm whether you need to set up the IPL T CR48 for DHCP

(Dynamic Host Conﬁguration Protocol) to have an address assigned automatically when you

sign on.

IPL T CR48 • Connection and Conﬁguration 11