User Manual

ADCP-75-159 • Issue 1 • August 2003 • Section 3: Host Unit Installation

Page 3-4

3 HU MOUNTING PROCEDURE

The HU may be mounted in either a 19-inch or 23-inch EIA or WECO equipment rack. Both

US standard and metric machine screws are included for rack mounting the HU. When loading

the HU in a rack, make sure the mechanical loading of the rack is even to avoid a hazardous

condition such as a severely unbalanced rack. The rack should safety support the combined

weight of all the equipment it holds. In addition, maximum recommended ambient temperature

for the HU is 50º C (122º F). Allow sufficient air circulation or space between units when the

HU is installed in a multi-rack assembly because the operating ambient temperature of the rack

environment might be greater than room ambient.

Use the following procedure to install the HU in the equipment rack:

1. The HU is shipped with the mounting brackets installed for 19-inch rack installations. If

mounting the HU in a 19-inch rack, proceed to step 4. If mounting the HU in a 23-inch

rack, proceed to step 2.

2. Remove both mounting brackets from the HU (requires TORX screwdriver with T20 bit)

and save screws for reuse.

3. Reinstall both mounting brackets so the long side of the bracket is flush with the HU front

panel as shown in Figure 3-2. Use the screws removed in step 2 to re-attach the brackets to

the HU chassis.

Figure 3-2. Installing the Mounting Brackets for 23-Inch Rack Installations

Warning: Wet conditions increase the potential for receiving an electrical shock when

installing or using electrically powered equipment. To prevent electrical shock, never install or

use electrical equipment in a wet location or during a lightning storm.

Note: To insure that all optical connectors remain dust-free during installation, leave all dust

caps and dust protectors in place until directed to remove them for connection.

17864-A

FOR INSTALLATION IN 23-INCH

RACKS, REMOVE AND REINSTALL

MOUNTING BRACKETS AS SHOWN