Attero Tech Box 4 I/OP - Manual (Page 10)

VoiceBox 4 I/OP
User Manual
 Attero Tech LLC 2010 Page 6 614-00008-02
2.1.2 – Input from a Balanced Source
To connect balanced sources to the VoiceBox 4 I/OP, connect positive output to positive input, negative output to negative
input, and connect the grounds together through the cable shield.
Figure 6 - Balanced Source Connection
2.1.3 – Output to a Balanced Destination
To connect to a balanced input on a destination device, connect the positive, negative, and ground connections of both the
VoiceBox 4 I/OP output to the destination input respectively.
Figure 7 - Out to Balanced Destination Connection
2.1.4 – Output to an Unbalanced Destination
To connect the VoiceBox 4 I/OP outputs to a 2-wire unbalanced input, connect the positive output to the destination’s
positive input and connect the grounds together through the cable shield. Leave the VoiceBox 4 I/OP negative output
floating.
Figure 8 – Output to Unbalanced Destination
2.1.5 – RS-232 Serial Bridge Port
The RS-232 Serial Bridge Port located on the rear panel of the VoiceBox 4 I/OP implements RX, TX, and GND connections.
The 3-Pin de-pluggable connector can be used to interface with other RS-232 enabled equipment - for example, a computer
serial port. The TX signal is an output from the VoiceBox 4 I/OP and the RX signal is an input. Connections to other RS-232
hardware should be made accordingly.
Note: The RS-232 port does not communicate locally with the VoiceBox 4 I/OP, but is a conduit to other devices on the
CobraNet network. The Serial Bridge feature of CobraNet allows serial data to be sent across the network to other serial-
enabled devices. This feature is useful for extending control data to remote locations. The settings for the serial bridge can
be configured using the Attero Tech Control Center software.