Speck-electronics SSM Bedienungsanleitung PDF herunterladen (Seite 22)

Chapter 3 Installation Section

Interfacing Expanders

The Model SSM has been prewired with a multipin pin connector to

accept any of the SSM series of Expanders. SSM Expanders are

available in two versions: The SSMEX-32, 16 stereo channels; and the

SSMEX-16, 16 mono channels.

The Expander is connected to the main mixer with a special 6 foot

shielded multiconductor interface cable that utilizes 38 pin Elco

connectors at each end. The Expander does not require an additional

power supply, as it receives its power when connected to the main

mixer.

The Expander is considered an extension of the main mixer and is not

intended to be remotely mounted. It was designed to be installed

directly above or below the main unit and should follow the same

installation guidelines as described for the main unit.

Due to the mounting proximity requirements of the Expander, the length

of the interface cable has been limited to 6 feet. No attempt should be

made to modify or extend this cable. Any attempt to modify or extend

this cable could result in extreme noise, oscillation, hum or buzzes, or

total failure of the Model SSM.

Before connecting the SSM Expander to the SSM main unit it is

important that the power supply be turned off.

To attach the interface cable, gently fit the 38 pin Elco connector into

the main mixers receptacle and turn the actuator screw clockwise. The

connector and receptacle are keyed so they can only fit in one direction.

If any resistance is met when installing the connector, reverse the

actuator screw, remove the connector, inspect for any obstruction and

try again. Install the other connector end into the Expander in the same

manner.

If there is an excess amount of interface cable remaining after the units

have been connected, it should be bundled neatly with a cable tie. It is

important that the interface cable be kept away from sources of EMI and

RFI. These EMI sources include power supplies, power amplifiers, or

any power creating device that could cause undesirable buzzes or hums

in the mixer system.

Mounting location

Installing the Interface Cable

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Speck-electronics SSM Bedienungsanleitung Seite 22