User guide

821030: AMPx-S8 Series User Guide

Chapter 2 System Overview

Rear Panel Connectors

Rotary Switch Connectors

• OPT 2 (10-Position Rotary Switch): This recessed 10-position rotary

switch allows for standard operation and software upgrades. Refer

to Table 2–5 for the position values.

• SDI Option (10-Position Rotary Switch): This recessed 10-position

rotary switch that is reserved for future use and should be left at the

factory position of 1.

• Ref (10-Position Rotary Switch): This recessed 10-position rotary

switch allows you to set the analog and digital reference levels for

the unit’s level meters, as well as to select the software upgrade

function. In Table 2–7 below, the analog reference level (analog, left

column) is the analog input level needed to activate the bar graph

segment at the associated digital reference level (digital, right

column) value. This is usually the location on the bar graph level

meter where the color transitions from green to amber.

Table 2–5 OPT 1 and OPT 2 Option Settings and

Descriptions

Position Setting Description

0 thru 7 Operational Mode (Default=1)

8 thru 9 Software Upgrade

Table 2–6 SDI Option Settings and Descriptions

Position Setting Description

0 Not Used - Reserved for Future Use

1 Operational Mode

2 thru 8 Not Used - Reserved for Future Use

9 Software Upgrade

Table 2–7 Reference Setting Values and Definitions

Position

Reference Level Function

Analog (dBu) Digital (dBFS)

0+8

-201+4

30 -18

4+6 -9

5+4 -18