SECTION 2 INSTALLATION INSTRUCTIONS

11-5805-451-15

INSTALLATION INSTRUCTIONS

2.1 GENERAL

This section contains instructions for installing the Express Orderwire Multi-

direction Unit, including locating and mounting instructions and electrical connec-

tions for the equipment.

2.2 SPECIAL TOOLS REQUIRED

No special tools are required for installing the unit.

mATDIG AND MOUNTING

Locating

The location of the unit will vary depending upon the requirements of the

particular station.

Mounting

The unit is designed for mounting in a standard 19-inch equipment rack.

Install the unit in the assigned rack space, and secure with the four front-panel

mounting screws.

2.4 ELECTRICAL CONNECTIONS

-48 Vdc power is connected to TB7 terminals 1 (-) and 2 (+). All voice-

frequency input and output connections are made to solderless connectors on

barrier-type terminal strips at the rear of the assembly. (See figure 2-1. )

Strapping for changing the number of outputs is also accomplished at these barrier

strips. Tables 2-1 and 2-2 give the printed wiring board complement and strapping

options, respectively. Strapping information for the adjustable attenuator boards is