Extron electronic IN3254 user manual Installation, Rack mounting

Power LED — A green LED lights to verify that the DA is receiving power.

Sync Level — An internal sync level control provides precise adjustment of the sync portion of the video with the sync signal.

Installation

The IN3254 can mounted in a convenient location using the Extron universal 2U rack shelf (Extron part# 60-032-01).

1.	Turn all equipment off and ensure that the source device,
	the DA, and the output devices have been disconnected
	from the power source.
2.	Place or install the unit in the desired location.
3.	Connect the video signal source (input) device to the input
	connectors.
4.	Connect the output devices to the output connectors.
5.	Apply power to the output device(s), the DA, and the
	input device.
6.	Set the gain and sync as needed.

Rack mounting

UL requirements for rack mounting

The following Underwriters Laboratories (UL) requirements pertain to the installation of an IN3254 DA onto a rack.

1. Elevated operating ambient — If installed in a closed or multi-unit rack assembly, the operating ambient temperature of the rack environment may be greater than room ambient. Therefore, consider installing the equipment in an environment compatible with the maximum ambient temperature specified by the manufacturer [Tma = +32 to +122 °F (0 to +50 °C)].

2. Reduced air flow — Installation of the equipment in a rack should be such that the amount of air flow required for safe operation of the equipment is not compromised.

3. Mechanical loading — Mounting of the equipment in the rack should be such that a hazardous condition is not achieved due to uneven mechanical loading.

4. Circuit overloading — Consideration should be given to the connection of the equipment to the supply circuit and the effect that overloading of the circuits might have on overcurrent protection and supply wiring. Appropriate consideration of equipment nameplate ratings should be used when addressing this concern.

IN3254 • Introduction 1-3