JK Audio Outerloop User manual

JK Audio
User Guide
Outerloop™
Wireless Intercom Beltpack

ii Outerloop™ Wireless Intercom Beltpack
Welcome
Thank You
Thank you for purchasing the
JK Audio Outerloop. Please read this
guide for instructions on using it.
Getting Assistance
If you have technical or application
questions:
In the US & Canada, call us toll free
at: 800-552-8346
All other countries dial: 815-786-2929
(M-F 8:30-5:00pm Central Time Zone)
Email us at: [email protected]
Or, check out our FAQ section
for answers to common questions.
Limited Warranty
Outerloop is covered by a 2 year
warranty to be free from defective
workmanship and materials. To obtain
service, contact JK Audio by phone or
email for return authorization. Once
authorized, you will carefully pack
and ship the faulty product and all
accessories to us. You will pay for
shipping to us and we will pay for return
back to you.
This warranty does not cover damages
due to accident, weather, re, ood,
earthquake, misuse, unauthorized
repairs or modications, or damages
occurred in shipping, only defective
workmanship or materials.
There are no expressed or implied
warranties which extend beyond the
warranty here made.

Safety Precautions iii
Safety Precautions
Use Caution to Prevent
Hearing Loss
Outerloop contains a headphone
amplier that is more powerful than
the typical consumer product.
JK Audio products are designed for
the broadcast industry. The broadcast
professional must be able to hear
headphone signals over the ambient
noise level. From the cheering crowd
at a football game to trackside at a
car race, the program material or cues
must be heard at high volumes without
distortion.
Road Safety
Never use headphones while driving
or cycling, etc. It can be dangerous
to turn up the volume even while
walking. Doing so may hinder your
hearing and can be hazardous on the
roadways or at pedestrian crossings.
Note: While Outerloop was designed
to be very rugged and durable, it is not
waterproof and care should be taken to
keep the unit dry.

iv Outerloop™ Wireless Intercom Beltpack
Overview vi
Applications 1
Controls & Indicators 2
Getting Connected 4
Bluetooth Wireless Technology
6Bluetooth Status LED
8Pairing to a Cell Phone
9Pairing to a Headset1
10 Connection History, Disconnecting from a Device
11 Reconnecting to a Device, Switching Between Phone and Headset
6
FAQs 12
Technical Information 14
Contents

Features v
HD Voice*
Bluetooth Wireless Technology
Uses Standard Intercom Headsets
PTT Button
4-Pin and 5-Pin Male or Female
Headset Jacks
>10 Hours on one 9 Volt Alkaline Battery
Features
7 kHz
* HD Voice. While standard phone calls have a narrow bandwidth of 300 Hz to 3.4 kHz, HD
Voice calls offer 50 Hz to 7 kHz bandwidth. The additional 1.5 octaves on the low end gives
voice a more natural sound, while the additional upper octave dramatically improves speech
clarity and intelligibility.
Wireless HD Calls. To take advantage of this extended bandwidth, both phones on the call
must support HD Voice, and both phones must be on the same carrier, in coverage areas
that support HD Voice.

Outerloop™ Wireless Intercom Beltpack
vi
Introducing Outerloop
Outerloop™ functions as a wireless link to your intercom system. This universal
belt pack provides connections for your existing 4-pin or 5-pin intercom headset,
routing audio through your mobile device over a Bluetooth wireless connection.
Use your cell phone to call into your intercom phone bridge or station phone
coupler for a global wireless link.
Model OTL-F features both 4-pin and 5-pin Female XLR headset jacks, while
model OTL-M features both 4-pin and 5-pin Male XLR headset jacks. Easy-to-
use send and receive level controls, a push-on, push-off <Talk> button, as well
as a recessed sidetone level control. All the comforts of a standard belt pack
whether you are around the corner or around the world. Outerloop also features
a switch that selects between pairing to a phone or to a headset. In <Phone>
mode, Outerloop pairs to your cell phone, notepad, or computer just like any
other Bluetooth headset. In <Headset> mode, you can pair to another Outerloop
or to a standard Bluetooth headset, providing a short range secure wireless point-
to-point intercom. Outerloop to Outerloop connections default to HD Voice (120
Hz to 7 kHz) bandwidth. Many new Bluetooth wireless cell phones and headsets
also provide HD Voice bandwidth.
Overview

Applications
A
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.
INTERCOM
PHONE BRIDGE PARTY-LINE
40 ft.
Phone Mode
Connect to a Bluetooth enabled
mobile phone to provide remote voice
access to the party-line with your
4-pin or 5-pin intercom headset.
1
Applications
OR
40 ft.
Headset Mode
Connect to a Bluetooth enabled
headset or another Outerloop
for a short range secure wireless
point-to-point intercom.

2Outerloop™ Wireless Intercom Beltpack
Controls & Indicators
1
6 7
2 3 4 5

Controls & Indicators 3
5) Power Indicator
LED indicates when the power is
turned on and dims when the battery
charge is getting low.
6) Push-to-Talk Button (PTT)
7) Power Button
The <Power> button applies power to
the belt pack and immediately starts
the Bluetooth radio in Idle mode.
Controls & Indicators
1) Send Level
Controls the level of your microphone
input.
2) Bluetooth LED
See section on Bluetooth Wireless
Technology.
3) Talk LED
Lit green when mic is enabled.
4) Receive Level
Sets the level of audio sent to the
headphone output jack.

4Outerloop™ Wireless Intercom Beltpack
Getting Connected
2) Pair button
Momentary MFB (Multi Function Button).
3) Headset
OTL-F: 4-pin or 5-pin Female XLR
headset jacks.
OTL-M: 4-pin or 5-pin Male XLR
headset jacks.
1) Role Switch
Select <Headset> if you will be using
Outerloop with a Bluetooth enabled
headset or any device that emulates a
headset.
Select <Phone> if you will be using
Outerloop with a cell phone or other
master device.
1 2 3

Getting Connected 5
Getting Connected
Sidetone Null
A screwdriver slot on the side of the
unit adjusts the amount of Sidetone
(your voice coming back to you in your
headset). This adjustment is made
while by speaking into the headset
with the <Talk> button engaged.
Simply insert a small at blade
screwdriver and adjust the trim pot to
set the desired sidetone level.
Send Level Control
Most Intercom Belt Packs do not
include front panel transmit level
controls. However, Bluetooth
devices encompass a wide range of
sensitivities, and therefore require an
extra degree of exibility.

6Outerloop™ Wireless Intercom Beltpack
Bluetooth Wireless Technology
Bluetooth Status LED
The blue LED on the front of the unit ashes in different sequences to indicate the
current connection status. When attempting to put the unit into Pairing mode,
you should power the unit off then back on before pressing the <Pair>
button. If you put the unit into the wrong state due to releasing the button at the
wrong time, holding it again for "X" seconds will not put it into the desired mode.
When Should I Release the Pair Button?
Pairing Mode Clear
Pairing Mode Clear
Bluetooth LED
seconds
Headset Mode
Phone Mode
Idle Mode
Idle Mode

Bluetooth Wireless Technology
Pairing Mode
In Pairing Mode, any Bluetooth
wireless technlogy enabled device
within range can pair with your
Outerloop. The blue LED will
ash rapidly at a rate of 100ms
off, 100ms on. Once the pairing
process is complete the unique
device ID is stored in Connection
History. Subsequent connections
can be made from Idle Mode.
Idle Mode
When the <Power> switch is turned
on, Outerloop starts in Idle Mode.
In Idle Mode, Outerloop searches
for paired devices. The blue LED
will ash at a rate of 2 seconds off,
200ms on.
Connected Mode
After bonding is complete, the blue
LED will ash at a slower rate of
2secs off, 1second on ( 2 secs
off, 4 secs on for HD Voice). The
connection to that device
is secure. Outerloop returns to
Idle Mode when a connection is
dropped or terminated.
7
Bluetooth Wireless Technology

8Outerloop™ Wireless Intercom Beltpack
Bluetooth Wireless Technology
Pairing to a Cell Phone
with Bluetooth Wireless
Technology
When you are rst connecting to
a new device, you should be in an
environment with no other Bluetooth
wireless technology enabled devices
within range that might also be in
Pairing Mode.
1. Starting with the <Power> switch
Off, set the <Phone/Headset>
switch to the <Phone> position.
2. Turn the Outerloop on, then hold
the <Pair> Button for 5full seconds.
After you release the button, the
blue LED should ash rapidly if
Outerloop is in Pairing Mode.
3. On your device, nd and select
the option to set up a connection.
When the cell phone has found
the new device, select from the list
the device ID. Depending on the
gender of model, the device ID is
"JKOTLFxxxx" or "JKOTLMxxxx"
where: xxxx = last four digits of the
serial number.
4. If asked for a pin, enter "0000".
5. When bonding is complete, the blue
LED will ash at a rate of 2secs
off, 1sec on. (2 secs off, 4 secs
on for HD Voice) Once Outerloop
has been added to your cell phone,
subsequent connections can be
made more quickly from Idle Mode.

9
Bluetooth Wireless Technology
3. Turn the Outerloop on, then hold
the <Pair> Button for 5full seconds.
After you release the <Pair> button,
the blue LED should ash rapidly if
Outerloop is in Pairing Mode.
4. Outerloop will automatically pair
to the rst device it nds that is in
Pairing Mode. The next time you
pair to the same headset, you can
connect from Idle Mode instead of
Pairing Mode.
Pairing to a Headset
with Bluetooth Wireless
Technology
When you are rst connecting to
a new device, you should be in an
environment with no other Bluetooth
wireless technology enabled devices
within range that might also be in
Pairing Mode.
1. Starting with the <Power> switch
Off, set the <Phone/Headset>
switch to the <Headset> position.
2. Following manufacturer’s
instructions, set your Headset to
Pairing Mode.
Bluetooth Wireless Technology

10 Outerloop™ Wireless Intercom Beltpack
Disconnecting from a device
with Bluetooth Wireless
Technology
Since Outerloop has no other function
when Bluetooth is powered down,
you may simply turn off the <Power>
switch to disconnect from the
Bluetooth device.
If you wish to leave Outerloop
powered up while Bluetooth is
powered down, simply press and hold
the <Pair> button for 5seconds.
When a Bluetooth connection is
dropped or terminated, Outerloop
returns to Idle Mode. If the unit
is in Idle Mode for >2 minutes
without a connection, Bluetooth
will automatically shut off. You may
restart Bluetooth by either turning the
<Power> switch off and on again,
or pressing the <Pair> button for 2
seconds.
Bluetooth Wireless Technology
Connection History
Outerloop retains a history of the
16 most recent devices. To clear
the connection history and return to
factory reset, hold the <Pair> button in
for at least 20 seconds. After resetting,
Outerloop will return to Pairing Mode.

Reconnecting to a Device
When reconnecting to a device that is
still in Outerloop’s pairing history, the
device that will be in Headset mode
should be powered up rst and both
devices should be in Idle Mode. When
the Master device is turned on, it will
nd the Headset device during its
power up cycle.
When reconnecting to your cell
phone, the switch on Outerloop
should be set to Phone and the
Outerloop should be turned on rst.
When reconnecting to your
Bluetooth headset, the switch on
Outerloop should be set to <Headset>
and the headset should be turned
on rst.
11
Bluetooth Wireless Technology
Switching Between Phone
and Headset
The Role Select switch is only
monitored during the power-up
sequence. You must power-down,
select the desired function, then
power-up for the change to take effect.
Bluetooth Wireless Technology

Outerloop™ Wireless Intercom Beltpack
FAQs
What is the range of the
Bluetooth transmitter/
receiver?
Outerloop will transmit and receive
audio signals up to 40 feet (12 meters)
from your Bluetooth device. The actual
range is limited to the device with the
shortest range. Transmitting signals
over longer distances will require more
power, therefore you should keep
Outerloop as close as possible to
your Bluetooth device to conserve
battery power.
Can I pair my Outerloop to
two cell phones and send
my audio to two locations
simultaneously?
No, your Outerloop can only connect
to one Bluetooth enabled device at
a time. Paired devices remain in the
history for easy connection later.
How long will the battery last?
Based on our tests using a standard
alkaline battery, the battery should last
for >10 hours under backup power.
Lithium batteries can signicantly
increase the battery life, but at a
higher cost. As an indicator of low
battery, the red power LED will grow
dim and then extinguish a short
while before the battery is completely
exhausted and the unit shuts down.
12

FAQs 13
FAQs
My Outerloop will not pair with
my cell phone. Why will it not
accept the PIN?
If this is the rst time you have paired
the Outerloop with this cell phone,
make certain you are in Pairing Mode
and not Idle Mode. You must press
and hold the <Pair> button on the
Outerloop while turning the <Power>
switch On. Hold for 5seconds then
release to reach pairing mode the rst
time you connect.
Can I use my Bluetooth
headset with my cell phone
while I have my phone
connected to the Outerloop?
No, your cell phone can only be
connected to one Bluetooth enabled
device at a time.

14 Outerloop™ Wireless Intercom Beltpack
Specications
Technical Information
Headset Microphone
Impedance: 50-200 ohms
Headset Earpiece
Load Impedence: 50-600 ohms
Power: >50 mW into 150 ohms
4-pin Male or Female
Pin 1: Mic -
Pin 2: Mic +
Pin 3: Headphone -
Pin 4: Headphone +
5-pin Male or Female
Pin 1: Mic -
Pin 2: Mic +
Pin 3: Headphone -
Pin 4: Headphone B +
Pin 5: Headphone A +