Kramer Sierra Viper 6464CVR-64 [41/88] Analog audio signal path overview

VIPER COMPOSITE SERIES

Analog Audio Signal Path Overview

The Viper Series companion Audio routing switcher is based upon a modular architecture of an

integrated frame, motherboard and backplane. Common input and crosspoint modules are used.

The same two types of modules are used for both frame sizes: 64x64 and 128x128.

There are two basic modules:

 Input Buffer Module

 Crosspoint/ Output driver Module

The 64x64 frame has positions for two 32-channel input buffer and two crosspoint/output driver

modules; and the 128x128 frame has positions for four 32-channel buffer modules and four

crosspoint/output driver modules.

All modules are front extractable and “hot-swappable”. The frame is force air cooled using internal

cooling fans contained within the front panel.

Note:

Although modules are “hot-swappable” it is advised that power be removed when removing or inserting

modules when possible.

Input Buffers

Each input buffer module has 32 identical circuits. These routers are designed to work in

broadcast and production facilities, and are compatible with balanced interconnections.

The buffers have multiple purposes:

1. Present a high impedance to the incoming signal

2. Remove unwanted common mode IE Hum signal

3. Convert the signal to the level and impedance needed by the

switching matrix that follows