LIGHTSPEED ZULU 4-P PN40615 (01) PDF Document

Your LIGHTSPEED ZULU 4-P PN40615 headset package includes:

• Zulu 4 ANR headset

• Quick Start Guide

• Carrying case

• Two AA batteries

• Cord clip

Fitting your LIGHTSPEED ZULU 4-P PN40615 headset properly is key to comfortable use and superior Active Noise Reduction (ANR) capabilities. To gain peak performance from the ANR feature, it is necessary to have a solid seal around your entire ear combined with a symmetrical fit on your head. The following steps will assist you in achieving the proper fit:

1. Extend the sliders fully.

2. Place the headset on your head and compress the sliders slowly and evenly on each side until the head pad rests softly on the top of your head.

3. Adjust the ear cups to ensure the ears are fully inside the ear seal and there is uniform pressure on your head.

4. Position the microphone 1/8 inch from your mouth; face the side of the microphone with the four screws and Lightspeed logo away from you. (You can remove the mic windscreen to see these features.)

If you feel that your ears are not centered within the ear cups, even after collapsing the sliders completely, a taller head pad might be the solution. This will move the ear cups further up the side of your head and should allow you to center your ears within the cups.

The standard LIGHTSPEED ZULU 4-P PN40615 battery-powered headset requires two AA batteries (included). Use alkaline batteries for best performance.

A. Open the controller battery/DIP switch door by either pressing down on the circle icon or by pulling open the door along the notched edges. Insert two AA batteries with the correct polarity positioning.

B. The LED flashes GREEN when charged batteries are in use and the power is on.

C. When batteries begin to run low the power LED flashes RED. If the LED flashes RED during flight the headset will continue to operate for 5-10 more hours. Install new batteries as soon as possible at any indication of low batteries.

Use two AA alkaline or lithium batteries. Lithium batteries may provide improved battery life in colder temperatures. It is not recommended to use rechargeable batteries or to mix battery types and brands.

A set of batteries can provide up to 40 hours of power. However, heavy Bluetooth® wireless technology usage can significantly reduce battery life. Under quiet conditions, the LIGHTSPEED ZULU 4-P PN40615 will auto shut off approximately five minutes after the headset is removed from your head.

The controller on your LIGHTSPEED ZULU 4-P PN40615 has the following functions:

Power indicator LED: Flashes GREEN when power is supplied and batteries are strong. Flashes RED when batteries are low.

Power button: Powers on the headset, turning on Active Noise Reduction (ANR). Press the button once to turn the headset on; press and hold to turn it off. To toggle the LED brightness from bright to dim, quickly press the power button twice.

Volume control: Controls audio panel volume with individual sliders for each ear. This does not affect the volume of auxiliary devices.

Bluetooth mode indicator LED: Flashes BLUE when Bluetooth mode is on and RED when Bluetooth mode is being turned off. In pairing mode, it flashes alternating RED and BLUE.

Bluetooth power button: Turns on and off the Bluetooth signal and controls connected devices via Bluetooth technology.

Bluetooth volume buttons: Controls the volume of devices connected via Bluetooth technology.

ComPriority™ button: When enabled, automatically quiets music and audio from auxiliary devices during radio communications.

ON: Press the power button once to turn on the headset. The GREEN power LED flashes when power is supplied. Active Noise Reduction (ANR) is engaged when you turn on the headset.

OFF: Press and hold the power button until the GREEN power LED turns off.

The LIGHTSPEED ZULU 4-P PN40615 will auto shut off approximately five minutes after removing the headset and under quiet conditions. The power LED flashes RED when batteries are low.

The Stereo/Mono DIP switch setting should match the signal from your audio panel. The LIGHTSPEED ZULU 4-P PN40615 is shipped in Mono (the “on” position), so you only need to change the setting if you use a stereo panel. STEREO should be used for a stereo panel and MONO for a mono panel. Incorrect settings result in communications being heard in only one ear or weakly in both. This switch does not affect auxiliary devices, so you can enjoy auxiliary audio in stereo regardless of how the Stereo/Mono DIP switch is set.

Your LIGHTSPEED ZULU 4-P PN40615’s Stereo/Mono DIP switch is probably set to Stereo while your audio panel is transmitting a mono signal. To fix this, change the DIP switch to Mono. This setting does not affect music or audio from auxiliary devices; you can hear stereo sound on auxiliary devices even when the Stereo/Mono DIP switch is set to Mono.

Front Row Center™ is a built-in feature on the LIGHTSPEED ZULU 4-P PN40615 that gives you a theater-like experience, enhancing stereo sound reproduction so that audio seems to come from all around you, not just from your right and left.

ComPriority™ is turned on or off by the bottom-most controller button. With ComPriority™ enabled, when radio communications are detected, the volume of auxiliary devices will be significantly reduced. ComPriority™ is enabled by default when you power on your headset. If enabled, your auxiliary music volume will decrease when you start to talk into the headset microphone while playing music using a wired device. During cell phone calls, the other party will be muted, so you should disable ComPriority™ before making calls.

You can think of microphone gain as a volume control for your microphone, helping balance loud and soft voices in a multi-headset environment. Soft voices might benefit from an increase in gain to improve audibility, while louder voices may need little to no gain increase.

To access the gain adjustment dial, remove the foam windscreen on your microphone and then remove the small cap next to the Lightspeed logo. Turn the dial clockwise to increase gain sensitivity and counterclockwise to decrease gain sensitivity. Move the dial in small increments (think one-hour increments on a clock face) and test it in your aircraft. Replace the cap and foam windscreen when you are satisfied with the adjustment.

DIP switches on your LIGHTSPEED ZULU 4-P PN40615 are factory set to match most aircraft audio panels. To change a DIP switch setting, open the controller battery/DIP switch door. Use a small pointed object such as a wood toothpick to slide the DIP switch to ON or OFF depending on your preference.

Connecting for the First Time:

1. Power on the headset. Bluetooth is off by default to conserve battery.

2. Press and hold the Bluetooth button on the Zulu 4 Controller for more than 1 second to turn on Bluetooth. The headset will immediately enter pairing mode.

3. If there are previously connected devices, the headset will attempt to connect to those. If not, you will see the device flash red and blue.

4. Navigate to your device’s Bluetooth menu to connect the “Zulu 4_#####” headset.

5. Once your device is connected you will hear an audio cue and the Bluetooth light will blink blue. Once successfully connected, it will exit pairing mode.

Adding Another Device (When Bluetooth is already on):

1. Press and hold the Bluetooth button for 2-5 seconds.

2. Pairing mode is indicated when you see alternating flashing Red/Blue LEDs. An audio cue (“Pairing Mode Enabled”) will also indicate pairing mode.

3. Navigate to your second device’s Bluetooth menu to connect the headset.

Note: If you already have multiple devices paired, the least recently used device you connected will drop off when attempting to pair a third device. Only one secondary audio source can be heard at a time, and the secondary audio will never override the intercom.

Pressing the Bluetooth Button:

• Once: Pause and play audio + answer or end call

• Twice quickly: Skips to the next audio track

• 3 Times quickly: Goes back to the previous audio track

Press & Hold:

• 1 second: Turns on Bluetooth

• 2-5 seconds: (if Bluetooth is already on) enables Bluetooth pairing

• 5 seconds or more: Turns off Bluetooth

Single Press + Hold:

• Press once quickly then press & hold for 0.5-1.5 seconds to activate the voice assistant (available when Bluetooth is paired)

With two devices connected, both can play audio simultaneously, but only the first one to do so will transmit through the headset. The other will be blocked until the first is paused, at which point it will quickly transition to outputting the second one automatically.

To toggle audio from one paired device to the other, you must first pause the audio on your first device. Then you can play the audio on your second device by selecting the play button.

If you want to clear the headset pairing list, press and hold the Bluetooth button, volume up, and volume down buttons simultaneously for 8 seconds. The Bluetooth LED will blink 3 times along with 3 audible beeps.

Note: If a device still has the headset in its list, it will need to be deleted from the device before it can be re-added.

To make a Bluetooth call when your LIGHTSPEED ZULU 4-P PN40615 headset is unplugged from the intercom, set the DIP Switches 3 & 4 to the ON position.

To place a call: Dial from your connected phone. The call automatically transfers to the headset.

To answer a call: Press the Bluetooth button on the controller.

To end a call: Press the Bluetooth button.

Note 1: If you accept the call via the mobile device instead of pressing the Bluetooth button on the control module, then Bluetooth assumes you prefer the call via the mobile device. To modify this behavior on an iPhone, go to Settings > Accessibility > Touch > Call Audio Routing and verify it is set to Bluetooth Headset.

Note 2: The ringtone initially has low volume but ramps up louder. You can increase ringtone volume at any time using the controller’s Bluetooth volume buttons.

To activate the Voice Assistant when Bluetooth is paired, single press the Bluetooth button and then Press & Hold the Bluetooth button again for one second.

The Lightspeed Aviation App allows for in-flight cockpit recording directly to your iPad® and iPhone®. The free app works seamlessly with the LIGHTSPEED ZULU 4-P PN40615 headset to capture and retrieve all incoming and outgoing communications.

Features:

• Record all activity over the intercom, as well as in-cabin conversation.

• Playback the prior 2 minutes.

• Store your recording library.

• Draw notes, codes, or diagrams on the convenient iPad scratchpad for reference.

How to Activate:

1. Download the Lightspeed Aviation App from the App Store.

2. Move the far right DIP switch (#6) to the ON position. When the Record Comms DIP switch is in the ON position, the recipient of a phone call will hear all sounds on the intercom. To avoid this, unplug your headset from the panel during phone calls.

3. Tap the icon to begin using the app.

• Start with an excellent fit.

• Set the Zulu 4 Stereo/Mono DIP switch to match the signal from your audio panel.

• Keep cell phones at least 12 inches from the controller and headset when making calls to reduce static noise.

• To conserve battery life, turn off Bluetooth mode when not in use.

• To ensure peak ANR performance and comfort, replace the ear seals, head pads, and mic muffs every 18 months. These are wear items that are not covered by the Lightspeed warranty.

• When packing your headset into its case, close the sliders and place the mic over the headband to avoid chafing the boom.

If you lose power at any time, your LIGHTSPEED ZULU 4-P PN40615 will continue to perform as a passive headset. When batteries begin to run low, the power LED flashes red, and the headset will continue to operate. Install new batteries as soon as possible at any indication of low batteries. It is recommended to add checking your headset batteries to your preflight checklist.

To reduce RF interference during phone calls, keep cell phones at least 12 inches from the LIGHTSPEED ZULU 4-P PN40615 controller and headset when making calls.

To gain peak performance from the ANR feature designed into your Lightspeed headset, it is necessary to have a solid seal around your ears. Without a tight seal, air can seep in and cause the ANR to compensate for uneven internal cup pressure, often resulting in a warbling noise.

The serial number (a small, white, bar-code sticker with numbers) can be found on the headset underneath the head pad. The head pad, located on the inner radius of the headband, must be removed to reveal the serial number. Simply pinch the cushioned part of the head pad, pull down and it will snap out.

Configuration

General

• Battery power supply: 3V, two AA batteries

• Weight: 14.6 oz. (including ear seals and mic boom)

• Panel aircraft: 8-40 VDC

Headphone

• Transducer: 40mm moving coil

• Frequency response: 20 Hz-20 kHz

• Nominal impedance @ 1 kHz:

– OFF-Mono: 200 ohms, ON-Mono: 280 ohms

– OFF-Stereo: 400 ohms, ON-Stereo: 560 ohms

ANR

• Maximum SPL: Greater than 125 dB at 100 Hz

Microphone

• Transducer principle: Noise-canceling electret

• Frequency response: 200 Hz-6000 Hz

• Maximum SPL: 114 dB

• Terminating impedance: 220-2200 ohms

• Operating voltage: 8V-16V DC