Novasub XDR-DSP Manuale utente

xDR-DSP –Diver Intercom Manual

Operations Manual

xDR-DSP –Digital Diver Intercom radio with

DSP

NOVASUB standard digital 2 or 4 Diver Intercom

radio built in different Novasub Surface Control

configurations

xDR firmware: v0.12B39 and DSP firmware: v0.22

Build 39 Date: 30-08-2021

Seascape Subsea BV

De Hoogjens 22

4254 XW Sleeuwijk

The Netherlands

T. +31-183-307900

E. [email protected]m

www.novasub.com

www.seascapesubsea.com

 
 
 
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2 of 33 
xDR-DSP –Diver Intercom Manual 
Build 39 Date: 30-08-2021 
Index 
 NEW & FIXED.....................................................................................................................................................................................3 
 ABBREVIATIONS ................................................................................................................................................................................4 
 INTRODUCTION .................................................................................................................................................................................5 
 DSP.....................................................................................................................................................................................................5 
 Features .............................................................................................................................................................................................5 
 Options...............................................................................................................................................................................................5 
 SPECIFICATIONS ................................................................................................................................................................................6 
 AUDIO SCHEMATICS ..........................................................................................................................................................................7 
 2DR audio flow...................................................................................................................................................................................7 
 4DR audio flow...................................................................................................................................................................................8 
 CONTROLS.........................................................................................................................................................................................9 
 AUDIO CONNECTIONS .....................................................................................................................................................................10 
 WIRELESS HEADSETS .......................................................................................................................................................................11 
 Control .............................................................................................................................................................................................11 
 Pairing ..............................................................................................................................................................................................11 
 MENU..............................................................................................................................................................................................12 
 Startup display .................................................................................................................................................................................12 
 Battery status...........................................................................................................................................................................12 
 Menu access and control.................................................................................................................................................................12 
 Menu control ...........................................................................................................................................................................12 
 Main Menu.......................................................................................................................................................................................13 
 Vol. Tender...............................................................................................................................................................................13 
 Vol. Ext. Speaker ......................................................................................................................................................................13 
 Comms Mode...........................................................................................................................................................................13 
 Main settings ...........................................................................................................................................................................14 
 Display settings ........................................................................................................................................................................14 
 Startup Function ......................................................................................................................................................................14 
 Main settings ...................................................................................................................................................................................15 
 Can hear selection....................................................................................................................................................................15 
 Diver 1......................................................................................................................................................................................16 
 Tender......................................................................................................................................................................................18 
 Wireless ...................................................................................................................................................................................20 
 Inputs .......................................................................................................................................................................................21 
 Outputs ....................................................................................................................................................................................22 
 Ext. Spk. Can Hear ....................................................................................................................................................................23 
 Reset Settings...........................................................................................................................................................................23 
 Prompt password.....................................................................................................................................................................23 
 Firmware version .....................................................................................................................................................................24 
 OPTIONAL & ACCESSORIES ..........................................................................................................................................................25 
 Wireless headsets ............................................................................................................................................................................25 
 Microphone .....................................................................................................................................................................................27 
 Headset............................................................................................................................................................................................29 
 Depth display hardware...................................................................................................................................................................31 
 DDG..........................................................................................................................................................................................31 
 PCBDDSI ...................................................................................................................................................................................31 
 HELP & SUPPORT.........................................................................................................................................................................32 
 WARRANTY .................................................................................................................................................................................33 
 Warranty Period...............................................................................................................................................................................33 
 Exclusions and Limitations...............................................................................................................................................................33 
 This Limited Warranty is not enforceable if item: ...........................................................................................................................33 
 Limitation of Liability .......................................................................................................................................................................33 
 

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xDR-DSP –Diver Intercom Manual

Build 39 Date: 30-08-2021

New & Fixed

In Build 39:

•Added an On/Off switch for VOX in the menu

•Fixed the Loudness of the External speaker

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xDR-DSP –Diver Intercom Manual

Build 39 Date: 30-08-2021

Abbreviations

Ampere per hour

Vdc

Volt DC

Vac

Volt AC

Vpp

Volt peak to peak

DSP

Digital signal processing

PTT

Push to Talk

2-wire (simplex)

Two wire used for communication. The Microphone and earphones of the diver share

the two wires in the umbilical.

4-wire (duplex)

Four wires used for communications. Two wires are used for the microphone and two

wires are used for the earphones.

Mic

Microphone (Diver, panel or headphone/set)

Head

Earphone (diver or headphone/set)

Headset

WHS

Wireless Headset

Diver

Tender (operator/supervisor)

Half Duplex (Diver is always heard, Tender needs to press PTT to talk to the diver)

Full Duplex (Full open communication between divers and divers-Tenders)

Vol.

Volume (gain)

Int.

Internal

Ext.

External

SPK

Speaker

Aux

Auxiliary audio input or output

Rec

Output to recorder or Audio output

Clock-wise

CCW

Counter clock-wise

FFM

Full Face Mask

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xDR-DSP –Diver Intercom Manual

Build 39 Date: 30-08-2021

Introduction

The xDR Diver Intercom is a self-contained , Two / Four diver Intercom for a 2- or 4- wire communication between the

operator (Tender) and divers. The xDR can operate in half duplex/full duplex mode Tender to Diver and full duplex

between divers (round Robin). The Tender may choose to talk with the divers via the panel microphone, hand held Mic,

headset Mic and Table Mic, using the PTT button. When pressing the PTT the Tender will communicate in full duplex

mode with the diver (only in 4 wire mode). Each diver has a volume control from Diver to Tender and a volume control

from Tender to diver. Apart from the Internal speaker an external speaker can be connected with separate amplifier and

volume control.

The xDR Diver Intercom is the latest generation diver intercom radio based on an internal digital process based DSP

(Digital signal processing). The DSP makes the xDR a complete adjustable Diver Intercom in which you can select what

you want to hear on the outputs and each input and output can be set to the required levels. The advantage of this is that

the xDR can be adjusted to the levels of your connected devices, like diver communication helmets and mask

microphones and speaker. But also the connected audio recording devices, or the audio input devices, like a MP3 player.

The standard xDR is a 2 channel diver radio with a connection of two divers. Each has the Volume control to and from the

diver from the Tender. An overall Tender Volume control. A built in Speaker and Microphone for the Tender. Each diver a

PTT (Push-to Talk) switch and a PTT All switch.

The xDR has a 2 line, 16 characters transflective display. The display is used to scroll through the menu and adjust the

required settings. Without using the Menu settings, by default the xDR will work as a standard 2 Diver intercom as you will

be used too. Using the Menu you have access to an extensive settings menu in which you can configure and adjust the

audio and other settings to your needs.

DSP

DSP means in general Digital Signal Processing, the xDR has an audio DSP. With DSP the audio can be duplicated,

adjusted, filtered, amplified, suppressed, etc. This makes it possible to easily route and adjust the audio signals from and

to the inputs and outputs. Also each input and output can be set to a required gain level. Another advantage is that on

each output can selected what you would like to hear.

That means that you can select at each Diver what he/she may here, but also on any output or speaker/headset.

All audio inputs are analog signals which are first digitized before passed on to the DSP. The audio is digital send to an

output where it is converted to an analog signal.

Features

•Fully audio configurable, select on each Diver, Tender and output what it may hear

•Each Diver, input and output has a gain level adjustment

•Separate amplifiers for Divers, Internal speaker and External speakers

•Transformer Isolated on all Divers, inputs and outputs

•3,5 mm jacks to connect any media / gaming headset with mic

Options

•Wireless headsets (two or four) with PTT

•Wireless hand held speaker/Mic

•Rugged waterproof Single ear headset with PTT

•Hand held wired Mic with PTT

•Table Mic with PTT button per diver and PTT all button

•Diver light power supply and control (24 vdc max 30 watt)

•Depth sensor which displays diver depth, dive time and max. diving depth per diver

First please read this manual thoroughly to understand all possibilities

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6 of 33

xDR-DSP –Diver Intercom Manual

Build 39 Date: 30-08-2021

Specifications

Electrical

Input Impedance (Each Input)

250 Ohms

Frequency Response

300 - 10000 Hz

Common Mode Rejection 40 dB Minimum

40 dB Minimum

Output Impedance

4 Ohm

Diver Mic Sensitivity (Input)

15 mVpp

Headset Mic

159 mVpp

Inputs audio (Aux&DVR in)

2,82 Vpp

Outputs Audio (Rec, Out & Aux)

2,82 Vpp

Headset speaker

1 watt audio

Diver Output Power (RMS @ 4 Ohm Load, 12 Vdc)

7 watt audio

Speaker Output Power (4 Ohm)

15 watt audio

Inputs and outputs Isolation

Transformer galvanic Isolated

Internal Power Supply Voltage

12-32vdc 6 watt

Power Drain

0.2 –0.5 Ah (12v)

External Power supply voltage

100-240 vac

Battery

Lead-acid or Li-Ion

Battery Life

Depending of system, min. 12 hrs

Charging time

Depending of system

Mechanical

Front Panel Material & finish

Aluminum epoxy print coated

Case / Box / Panel

Depending of system

Configuration

2 or 4 Diver

Protection

IP 54, protected against spraying water

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xDR-DSP –Diver Intercom Manual

Build 39 Date: 30-08-2021

Audio schematics

The below schematics shows the route of the audio to and from the connected devices. The Diver and Tender

connections are digitized to and from an analog input/output. Each digital audio signal is being filtered, adjusted and

amplified before being routed to another input/output.

The explanation of the used pictograms in the audio flow diagram:

Internal Gain setting

in Menu

Isolator

Audio

isolator

Rotary switch for Menu &

General volume

Selected

Volume Diver 1

to Tender

Volume setting with

turn knob

7 watt

Amplifier

Microphone

Un selected

2DR audio flow

Two Diver audio flow diagram

Headset

Tender 1

InternalSpeaker

Tender

Panel Mic

Can hear selection:

Diver2

Tender 1

Wireless Headset1

Wireless Headset2

Aux in

Head gain

Volume

Tender to Diver +

Volume Diver 1

to Tender

Volume

Tender

Can hear selection:

Diver 1,2

Tender1

Wireless Headset1

Wireless Headset2

Aux in

External speaker

Volume Ext.

Speaker

Mic Gain

Panel

Headset T1

Mic

Mic Gain HS

Mic Gain

Mic

Head

Diver 1

Aux Gain

DSP

mixer /

Filter

Can hear selection:

Diver 1,2

Tender 1

Wireless Headset1

Wireless Headset2

Aux in

Isolator

DVR Gain

Isolator

Rec1

Volume

Isolator

Can hear selection:

Diver1

Tender 1

Wireless Headset1

Wireless Headset2

Aux in

Head gain

Volume

Tender to Diver

Mic Gain

Mic

Head

Diver 2

Isolator

Can hear selection:

Diver 1,2

Tender 1

Wireless Headset1

Wireless Headset2

Aux in

BTEXT

BlueTooth add-on for 2x Wireless Headsets

Mic

Wireless Headset1

WH1 Can hear selection:

Diver 1,2

Tender 1

Wireless Headset2

Aux in

WHS1 Mic Gain

WH2 Can hear selection:

Diver 1,2

Tender 1

Wireless Headset1

Aux in

WHS2 Mic Gain

Mic

Wireless Headset2

Volume Diver 2

to Tender

Rec2

Volume

Isolator Can hear selection:

Diver 1,2

Tender 1

Wireless Headset1

Wireless Headset2

Aux in

Aux1

Volume

Isolator

Can hear selection:

Diver 1,2

Tender 1

Wireless Headset1

Wireless Headset2

Aux in

Aux2

Volume

Isolator

Can hear selection:

Diver 1,2

Tender 1

Wireless Headset1

Wireless Headset2

Aux in

Aux In

DVR In

15 watt

AUX2 out

AUX1 out

Rec2 out

Audio2 out

Rec1 out

Audio1 out

7 watt

15 watt

7 watt

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xDR-DSP –Diver Intercom Manual

Build 39 Date: 30-08-2021

4DR audio flow

Four Diver audio flow diagram

Headset

Tender 1

Internal Speaker

Tender

Panel Mic

Can hear selection:

Diver2,3,4

Tender 1,2

Wireless Headset1

Wireless Headset2

Aux in

Head gain

Volume

Tender to Diver

Volume Diver 1

to Tender

Volume

Tender

Can hear selection:

Diver 1,2,3,4

Tender 2

Wireless Headset1

Wireless Headset2

Aux in

External speaker

Volume Ext.

Speaker

Mic Gain

Panel

Headset T1

Mic

Mic Gain HS

Headset

Tender 2

Headset T2

Mic

Mic Gain HS

Mic Gain

Mic

Head

Diver 1

Aux Gain

DSP

mixer /

Filter

Can hear selection:

Diver 1,2,3,4

Tender 1

Wireless Headset1

Wireless Headset2

Aux in

Can hear selection:

Diver 1,2,3,4

Tender 1,2

Wireless Headset1

Wireless Headset2

Aux in

Isolator

DVR Gain

Isolator

Rec1

Volume

Isolator

Can hear selection:

Diver1,3,4

Tender 1,2

Wireless Headset1

Wireless Headset2

Aux in

Head gain

Volume

Tender to Diver

Mic Gain

Mic

Head

Diver 2

Isolator

Can hear selection:

Diver1,2,4

Tender 1,2

Wireless Headset1

Wireless Headset2

Aux in

Head gain

Volume

Tender to Diver

Mic Gain

Mic

Head

Diver 3

Isolator

Can hear selection:

Diver1,2,3

Tender 1,2

Wireless Headset1

Wireless Headset2

Aux in

Head gain

Volume

Tender to Diver

Mic Gain

Mic

Head

Diver 4

Isolator

Can hear selection:

Diver 1,2,3,4

Tender 1,2

Wireless Headset1

Wireless Headset2

Aux in

BTEXT

BlueTooth add-on for 2x Wireless Headsets

Mic

Wireless Headset1

WH1 Can hear selection:

Diver 1,2,3,4

Tender 1,2

Wireless Headset2

Aux in

WHS1 Mic Gain

WH2 Can hear selection:

Diver 1,2,3,4

Tender 1,2

Wireless Headset1

Aux in

WHS2 Mic Gain

Mic

Wireless Headset2

Volume Diver 2

to Tender

Volume Diver 3

to Tender

Volume Diver 4

to Tender

3/4CH Diver Intercomm

also has the option of

adding two extra

Wireless Headsets

Rec2

Volume

Isolator Can hear selection:

Diver 1,2,3,4

Tender 1,2

Wireless Headset1

Wireless Headset2

Aux in

Aux1

Volume

Isolator

Can hear selection:

Diver 1,2,3,4

Tender 1,2

Wireless Headset1

Wireless Headset2

Aux in

Rec3

Volume

Isolator Can hear selection:

Diver 1,2,3,4

Tender 1,2

Wireless Headset1

Wireless Headset2

Aux in

Rec4

Volume

Isolator Can hear selection:

Diver 1,2,3,4

Tender 1,2

Wireless Headset1

Wireless Headset2

Aux in

Aux2

Volume

Isolator

Can hear selection:

Diver 1,2,3,4

Tender 1,2

Wireless Headset1

Wireless Headset2

Aux in

Aux3

Volume

Isolator

Can hear selection:

Diver 1,2,3,4

Tender 1,2

Wireless Headset1

Wireless Headset2

Aux in

Aux4

Volume

Isolator

Can hear selection:

Diver 1,2,3,4

Tender 1,2

Wireless Headset1

Wireless Headset2

Aux in

Aux In

DVR In

15 watt

AUX4 out

AUX3 out

AUX2 out

AUX1 out

Rec4 out

Audio4 out

Rec3 out

Audio3 out

Rec2 out

Audio2 out

Rec1 out

Audio1 out

7 watt

15 watt

7 watt

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9 of 33

xDR-DSP –Diver Intercom Manual

Build 39 Date: 30-08-2021

Controls

The xDR has standard controls which will be familiar to you using any other Diver Intercom. Each Diver has a Tender and

Diver Volume potentiometer knob and a PTT switch. There is also a PTT All push button, to speak to all Divers at once.

There is a general rotary switch which has as default selection the function of increasing and decreasing the Tender audio

Volume heard at the internal speaker and connected headset. There is an on/off switch for the internal speaker.

Function

Description

Rotary Switch

This switch has a rotation and push function. It is used to enter and scroll through the

Menu items. By default the switch is used to increase/decrease the value of the selected

startup function. By default the startup function is the Volume Tender.

Menu Display

This a 2 line, 16 character display showing the selected menu functions. The display is a

transflective LCD display with a back ground light. It can be used outdoor in full sunlight.

The contrast and background display light can be adjusted in the menu.

Diver Volume control

Each diver has 2 rotary potentiometer’s for adjusting the Tender to Diver volume and

Diver to Tender volume

•Volume Tender to Diver:

This is the volume of the Diver earphone speakers when the Tender speaks to

the Diver.

•Volume Diver to Tender:

This is Volume of the Diver Microphone speaking to the Tender

Panel Mic

On the panel between the Diver controls, the internal MIC is positioned. It is not needed

to place your mouth close to the Mic. Normal arm length distance is sufficient to pick-up

the Tender speaking volume.

PTT (Push-to-Talk)

Press the PTT to speak to the diver (only in HD mode), or PTT All to speak to all divers

at once.

Speaker

This a switch to switch the internal speaker On or Off the internal speaker. Depending on

the system this can be a rocker switch or a push latching switch.

Rotary

switch

Display

Diver

Volume

control

PTT

Buttons

Panel

Mic

Speaker

switch

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10 of 33

xDR-DSP –Diver Intercom Manual

Build 39 Date: 30-08-2021

Audio Connections

The xDR has audio in- and output connections, these can vary with each system. The most common connections are

shown below:

Below is a list of al the connections that are possible on a system:

Audio

connections

Description

Connector

Audio Out 1

Rec Out 1

Audio out 1 and Rec out 1 have both the same selection of you want to hear on

these outputs and the same internal gain setting. Audio Out is standard isolated.

REC out is both isolated to the recorder as well if it is an output. By default Diver 1 &

Tender are selected to output

RCA

(Cinch)

(Phono)

Audio Out 2

Rec Out 2

Audio out 2 and Rec out 2 have both the same selection of you want to hear on

these outputs and the same internal gain setting. Audio Out is standard isolated.

REC out is both isolated to the recorder as well if it is an output. By default Diver 2

& Tender are selected to output

Aux Out 1

Aux Out 2

Aux Out 1 & 2 have each their own selection of to hear and both have their own

internal gain setting. Both outputs are isolated. By default Diver 1&2, Tender and

Aux are selected to output.

Aux In

Aux in can be used to input an audio source from any device, like a MP3 player or

Smartphone. This audio source can be selected in the Menu to hear at any output.

This means for example, that you can selected at the Diver can hear, and the diver

can hear music. If the Tender talks to the diver, the aux (music in this example) will

be muted.

Jack 3,5 mm

(mono/stereo)

DVR In

DRV In is an audio input which can be used to connect to a DVR or other output.

The sound of this output will be heard on the Internal speaker of the xDR radio. This

input will be internally used in all Novasub systems with a built in DVR recorder.

This input is isolated and has an internal gain setting.

RCA

(Cinch)

(Phono)

Headphone

Headphone connection of a standard headphone used with PC’s or other devices.

The volume control of the headphone is in parallel with the Internal speaker volume.

This is the Vol. Tender on the menu display, using the rotary switch

Jack 3,5 mm

(mono/stereo)

Microphone

Microphone input of a headset or other Mic input which is an Electret Microphone.

This input has an internal gain setting. When a microphone is plugged it, it is

detected and this switches automatically from the internal panel Mic.

Jack 3,5 mm

(mono)

Mic/Headset

This is a Novasub configured multipin connection used for a Table Microphone with

PTT buttons, hand held Mic with PTT button or rugged Mic/Headsets with PTT

button.

Bulgin

PX0412/08S

or Lumberg

0271-07

Note that when there is a microphone connected to either the multipin or the jack then the panel microphone

is disabled.

Audio Out

Cinch/RCA

connector

Aux Out

Cinch/RCA

connector

Headphone

Jack 3,5 mm

connector

Aux In

Jack 3,5 mm

connector

Microphone

Jack 3,5 mm

connector

Mic/headset with PTT

Bulging PX04 /

Lumberg connector

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