INF-BP-2 / INF-BP-4 Digital Intercom Beltpacks

Introduction

The Telos Infinity INF-BP-2 and INF-BP-4 are, respectively, dual- and quad- communication channel digital beltpacks that include the additional ability to moniotor an auxiliary program audio feed.

Unlike traditional analog intercom Beltpacks, each communication channel may be configured to be part of a Partyline, Group, IFB, or a point-to-point contact regardless of the physical connection of the device to the supporting network.

The INF-BP-2 and INF-BP-4 connect over a supporting 100Mbps Ethernet network with 24-bit/48 KHz uncompressed digital audio carried as Audio over IP (AoIP) using the Livewire+™ AES67 industry standard.

The Beltpacks are powered by PoE (Power over Ethernet) either directly from the network switch or via an external PoE source. Additionally, multiple INF-BP-2 and INF-BP-4 Beltpacks may be daisy-chained from the network switch to one another. To comply with CE regulations, a supplied ferrite bead must be added to the ethernet cable.

Basic Operation

Talking

To talk to a desired channel, simply press the “Talk” key. The Talk key operates in one of two modes, depending on the user’s action.

Momentary

Also called "Push to Talk". Press and hold the Talk key for longer than 1 second. The talk function will be enabled (on) if the Talk key is pressed. As soon as the Talk key is released, the talk function will be disabled.

Latched

Pressing the Talk key quickly (less than 1 second) will latch the talk function on. Pressing the Talk key again will disable the talk function.

When the Talk function is active, the Talk LED located next to that channel’s Talk key will be lit.

Calling

To send a call signal to other members of a Partyline, press the Call button. The Call LED will light on all Beltpacks of the Partyline, including the Beltpack which initiated the call signal.

Listening

Adjusting the Listening Volume

Each channel has its own individual volume control on the side of the Beltpack. To adjust the listening volume, turn the encoder on the side of the Beltpack nearest to the channel.

• Turning the volume control in a clockwise direction (to the right) increases the volume

• Turning the volume control in a counterclockwise direction (to the left) decreases the listening volume

• To adjust the listening volume of the Program Input, adjust the volume encoder on the bottom of the Beltpack