KnTech ZD Series User manual

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Foreword
Dear customers, thank you so much for purchasing from us. Please read the manual carefully and follow the
instructions. Please check if the accessories are fully equipped.
Accessories including: Telephone * 1 unit; Mounting strip *1 set; Hexagon socket head screw * 4 pieces;
expansion screws *4 pieces; manual * 1 piece.
This telephone is compatible with most analog or digital telephone program-controlled switches, mainly
used for voice communication in a public work environment, and can implement point-to-point (one-touch) calls
on a public communication network or a dedicated network.
Model No.
Item
KNZD-09
KNZD-11
KNZD-13
KNZD-16
KNZD-17
KNZD-30
KNZD-33
KNZD-36
KNZD-45
KNZD-56
KNZD-68
KNZD-04
KNZD-05
KNZD-07B
KNZD-22
KNZD-23
KNZD-27
KNZD-31
KNZD-03
KNZD-06
KNZD-15
KNZD-29
KNZD-43
KNZD-07
KNZD-10
KNZD-59
KNZD-48
KNZD-55
KNZD-53
KNZD-14
KNZD-28
One key dialing
√
×
×
×
×
×
√
Hands-free
√
×
√
×
√
√
×
Handset mode
×
√
×
√
×
×
√
Free number
×
√
√
√
√
×
×
3 groups speed
dials
×
×
×
×
×
√
×
1. Specification
1.1. Features:
- Enclosure: Aluminum alloy casting(Stainless steel or cold steel), explosion-proof;
- Receiver, keyboard, buzzer, circuit board, shell and all accessories use multi-layer waterproof and dustproof
structure.
- The phone has good stability and strong anti-interference ability, in line with national standards GB/T 15279-94.
- IP54.
- The housing has a grounding device and is completely electrically isolated from the internal circuit and has a
certain electromagnetic shielding function.

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- The voice is clear when the call is made, the sound is loud, and there is no feedback whistling.
1.2. Technical Parameter
- Ringing Level: 70dB（A）
- Pulse dialing
The interrupt ratio of the dial pulse is 1.6±0.2 : 1.0
Dial pulse speed: 10±1 times/second
Dual Tone Multi-Frequency (DTMF) dialing:
- Frequency offset: ≤1.5%;
- Low frequency group level: -9±3dB;
- High frequency group level: -7±3dB;
- High and low level differences in the frequency combination: 2±1dB;
- Total distortion such as harmonics is at least 20dB lower than the fundamental level
- Call transmission index: SLR ≤12, RLR ≤-1, STMR ≥10,
- Output impedance: 600Ω
- Electroacoustic characteristics:
Send loudness rating ≥+2dB ≤+12dB
Accept the loudness rating ≥-8dB ≤-1dB
Lateral masking rating ≥+3dB ≥+10dB
2. Installation method
Reserve a suitable space in the wall to be installed, insert it into the wall and fix it with stainless steel screws.

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3. Operation
3.1. Picking/hanging mode (hands-free mode)
The phone can dial the preset number by pressing the hands-free button.
When the other party hangs up, the phone automatically detects the busy tone signal and automatically hangs up
after 3~5 seconds.
3.2. Picking/hanging mode (handle mode)
The pick/hang mode is the handle control mode, the off-hook is on, and the on-hook is off;
Answer the phone
When there is an incoming call, the phone rings, remove the handle, and you can talk to the other party. After the
call is finished, hang up the handle.
3.3. How to store the number (hands-free method)
(1) Remote deposit number: By calling the machine, (Note that every time you press the correct mode, you will
hear a tone. If you don't hear the prompt, the operation method or step is wrong, please details.
Read the instructions.)
(2) Use any DTMF phone to call the unit.
(3) After several ringtones, answer the question and enter the number setting state directly by entering the
password.
(4) Enter *8888#. After inputting correctly, hear three beeps, first group input #1, second group input #2, third
group input #3, fourth group input #4, and then input to be stored.
The number (0-9), after setting, hang up, automatically dial out the saved number the next time you pick up the
phone.
The default storage address key for a group of speed dial phones is #1, and the other steps are the same.
(5) Number clearing: Use any DTMF phone to call the machine. After several ringtones, lift the handset, enter

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*8888#, hear three beeps, input #5, hear three, hang up, down.
After the power is turned on, the automatic dialing is canceled.
(6) Restore factory settings: input *****#, automatically hang up after hearing the tone, and clear all
configurations next time.
3.4. How to store the number (handle mode method)
Remote deposit number: by calling the unit
(1) Use any DTMF phone to call the unit.
(2) After several ringtones, lift the handset and enter the number setting status directly by entering the password.
(3) Set the four groups of speed dial numbers, enter *8888#, after inputting correctly, hear three beeps, then
input (#1-#4), then enter the number to be stored (0-9), after setting.
Hang up, the next boot will take effect.
(4) Lift the machine automatic dialing number setting, enter *8888#, after inputting correctly, hear three prompts,
then input #5, then input the number to be stored (0-9), set it up, hang up, next time boot Effective.
(5) Number clearing: Use any DTMF phone to call the machine. After several ringtones, lift the handset, enter
*8888#, hear three beeps, input (#1-#5), hear the prompt tone for 3 times, hang up, automatically dialed after the
next boot.
Local deposit number:
The local deposit and clear number methods are the same as the remote deposit method (models must have
button support).
Some models with induction loop refer to the following parameters
Built-in induction loop part
Help the elderly and some of the disabled people can use this phone normaly.
With induction loop coverage 1M radius.
Spec for this induction loop part:
- Supply voltage : DC12V;
- Max operation current: 5A;
- Inputs: internal electret microphone,Noise reduction microphone.
- Microphone: sensitivity:66Dbm to -2Dbm bandwidth 50Hz to 20Khz.
- Overail Performance: bandwidth at any output level 50Hz to 15Khz.

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- Distortion:<0.5% TGD@1KHZ
- DYNAMIC RANGE：>90Db
- Noise:<-86Db
- CMRR:>84Db
- Coverage(internal loop)1m radius
- Input level control Mic:-40+40Db
- Power output: current0.8ARMS@1KHZ 3.0apeak
- Quality: Tested to and conforms with BS7594 and BS6.83 PART 4, en60118-4
- Power consumption: standby 25ma(0.04w) Maximum in use 1.5A(9W)
4. Repair and maintenance
This phone is for special use, please protect it properly.
Please read the manual carefully before use and strictly follow the instructions to extend the life of the phone.
If the phone malfunctions, it must be repaired by professional technicians and must not be disassembled.

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Thank you for using Koontech brand products！
Our philosophy is: focus on quality, service, continuous innovation, and customer friendliness.
Our team: camel's team, with goals, discipline, perseverance, endurance and resilience.
Our staff: honest, sincere, careful and meticulous.
Our vision: to create a world brand and build a century old store. Become a respected enterprise!
Our business
HongKong Koon Technology Co., Ltd. is a communication infrastructure integrating R & D, production and
sales all kinds of special emergency communication system providers are the world's leading integrated
communication solution providers. We are committed to the R & D and production of industrial telephone
and emergency communication system.
·We provide no host call system for petroleum, chemical, metallurgy, steel, tunnel and other industries
and projects;
·We provide SOS emergency call system for scenic spots, resorts, country parks and municipal squares;
·We research, develop and produce world-class offshore drilling platforms, LNG liquefiers,
petrochemicals and coalintrinsically safe explosion-proof telephone for other industries;
·Passenger call system and SOS emergency call for subway, expressway, integrated management
corridor, airport, wharf telephone, as well as the special interphone for the disabled and the hearing
impaired;
·Clean room telephones for pharmaceutical factories, dust-free workshops, hospitals, banking customer
service telephones, disabled people special window intercom for hearing impaired;
·The sound power counter, outdoor weather proof telephone station, noise elimination booth and public
telephone booth used in military special industry.

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