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NCS-C250C

INSTRUCTION MANUAL

Rev J

New Communications Solutions, LLC

5364 Valley Mist Trace

Suite 101

Norcross, Georgia 30092

Toll Free Tel. & Fax : 888- 883-5788

Email : [email protected]

Web Site: www.ncsradio.com

Содержание NCS-C250C

Страница 1: ... C250C INSTRUCTION MANUAL Rev J New Communications Solutions LLC 5364 Valley Mist Trace Suite 101 Norcross Georgia 30092 Toll Free Tel Fax 888 883 5788 Email support ncsradio com Web Site www ncsradio com ...

Страница 2: ...he following chart Option COR HookSwitch Multicast Sidetone M00 M04 X M05 X M06 X X M08 X M09 X X M10 X X M11 X X X M12 X M13 X X M14 X X M15 X X M16 X X X M17 X X X M18 X X X M19 X X X X NOTE The COR and Hookswitch Options require that an Option Board be installed in the C250C at the factory NOTE If a microphone was ordered with this unit it has been factory setup for the supplied microphone list...

Страница 3: ... Power Supply 8 7 0 Microphone Setup 9 8 0 Rear Panel Connections 12 9 0 Radio Interface Cables 14 10 0 Adjustments 15 11 0 Operating the C250C 18 12 0 C250C Option Board 20 13 0 Block Diagram 24 14 0 Troubleshooting 25 15 0 Contacting NCS 26 16 0 C250C Specifications 27 NCS C250C Instruction Manual Rev J Copyright 2004 2010 New Communications Solutions LLC 3 ...

Страница 4: ...tch functions Separate speaker outputs are provided for Selected and Unselected audio with individual volume controls and mute functions A high power PA speaker output and a voice operated cross band repeater range extender support out of vehicle operation All switches are illuminated for low light or night operation and LED indicator brightness is automatically adjusted based on ambient light to ...

Страница 5: ...ch other Always replace fuses with the ratings specified by the manufacturer Do not place your ears in close proximity to the local speakers or PA speaker at high volume settings Your hearing could be impaired as a result Do not attempt to operate this equipment while driving a vehicle For safety pull over to the side of the road when making adjustments NEVER connect this device to an AC voltage s...

Страница 6: ...installation Clamp Power Connector 1 Used to clamp the C250C power pigtail connector to the DC Power Cable 4 0 Front Panel Controls Item Description 1 Power Switch with Red LED Indicator Latching 2 Radio Select Switches with Red Selected and Green Busy Indicators Momentary 3 PA Repeater selection switch with Red RPT and Green PA Indicators Momentary 4 Mute Function Switches with Yellow Indicators ...

Страница 7: ... any radio with a low true PTT requirement Maximum switching capacity of the PTT output is 100V 1 5A DC Some radios use a single line to combine PTT and other control functions These radios may not be compatible with the PTT circuitry of the C250C Contact NCS for information on use of these radios 5 2 Speaker The C250C was designed to drive speakers of 4 8 Ohms nominal impedance Maximum power outp...

Страница 8: ...tion Power is supplied to the pigtail on the rear of the unit The connector is an Anderson Powerpole PP 15 As part of the accessory kit a 10 foot power cable is supplied with a mating connector attached Connect the power cable to a 9 16 VDC source capable of supplying at least 2A Additional connectors are available from Powerwerx web site http www powerwerx com telephone 714 570 3303 6 3 Polarity ...

Страница 9: ...ept standard 8 pin RJ 45 modular plugs Either connector can be used The front and rear connectors are connected in parallel and both use the same pin programming The function of each pin is programmable using the jumper blocks on the main circuit board 7 1 1 Microphone Pinouts The RJ45 modular plug pin numbering used on this unit is shown below NCS C250C Instruction Manual Rev J Copyright 2004 201...

Страница 10: ...ne connectors use the shunts supplied in the accessory kit to jumper the appropriate microphone pin numbers to the corresponding signals on the MIC CONN PIN jumper blocks For example to program the microphone shown in the following chart install the PIN SELECT shunts as shown NOTE These shunts are shown in the factory default positions NCS C250C Instruction Manual Rev J Copyright 2004 2010 New Com...

Страница 11: ...9 Auxiliary Supply Voltage If the microphone requires a separate voltage supply to operate a preamp DTMF keyboard or similar circuitry install a shunt on the AUXV block J5 at the corresponding microphone pin number Also select the desired supply voltage 5V or 12V using a shunt on the AUXV jumper block J15 Speaker Connections For microphones with built in speakers or for headsets install shunts at ...

Страница 12: ...o Mic Input 2 Transmit Audio Common To Radio Mic Input Common or Gnd 3 PTT To Radio PTT Input 4 GND Signal Ground 5 Receive Audio From Radio Audio Speaker Output 6 GND Signal Ground 7 Hookswitch Out to Radio 8 COR In from Radio Refer to Section 9 0 for cable information Hookswitch and COR require Factory Installed Option Board NCS C250C Instruction Manual Rev J Copyright 2004 2010 New Communicatio...

Страница 13: ...s is an open drain output that goes low when PTT is keyed and optionally when any Busy Light comes on See Section 11 2 5 3 Maximum Switching Capacity 100V 1 5A This output can be used to mute external equipment such as automobile radios or can be used to turn on external equipment such as On the Air lights SPEAKERS Mating Connector AMP Tyco 172168 1 Plug Housing AMP 770988 1 Socket Contacts 18 22 ...

Страница 14: ...O NCS C250 NCS C250 RJ 45 RJ 45 Radio Interface Connector Radio Interface Connector Speaker Cable Radio Interface Cable Radio Interface Cable Most commercial radios have an accessory connector that usually has mic audio receive audio and PTT connections available and usually is the preferred interface to the NCS C250C RADIO NCS C250 RJ 45 Radio Interface Connector Radio Interface Cable Front Front...

Страница 15: ...agrams below show the adjustment locations NCS C250C Instruction Manual Rev J Copyright 2004 2010 New Communications Solutions LLC 15 Radio Transmit Level Adjustments Radio 1 Radio 2 Radio 3 Radio 4 Mic Level Adjustment Mic Level Indicator LED Adjustments Inside the C250C FRONT Transmit Adjustments on Bottom of C250C FRONT ...

Страница 16: ... has four user programmable functions To turn functions on or off perform the following 1 Deselect all radios 2 Press and hold the Mic PTT Button and the UNSEL MUTE button until both the PA green and RPT red indicators above the PA RPT button are illuminated The unit is now in User Programming Mode 3 The SEL red indicators above RAD1 RAD4 buttons show the current status of the functions Red Indica...

Страница 17: ...en the transmitting radio goes from transmit to receive This delay is necessary for many radios that create a Busy indication when returning to receive when using VOX repeater control The Busy indication appears to be a valid received signal and it causes the receiving radio to enter transmit If both radios produce a Busy indication when going from transmit to receive both radios would alternate b...

Страница 18: ... radio momentarily press the desired radio button RAD1 RAD4 button or the corresponding digit 1 4 on a DTMF microphone if enabled The associated SEL red indicator will light when the radio is Selected The BUSY green indicator will light when audio is received 11 2 4 SELECT UNSELECT Audio Control Received audio from the Selected radio will be heard on the Selected Speaker and received audio from al...

Страница 19: ... 3 Using PA Mode Select any radio s to be sent to the PA Speaker by momentarily pressing any of the RAD1 RAD4 button s or the corresponding digits 1 4 on a DTMF microphone if enabled To make a PA announcement key the PTT and speak into the microphone The SEL PA Volume Control controls the PA volume 11 4 RPT Mode 11 4 1 RPT Mode Description In this mode received audio from one radio is retransmitte...

Страница 20: ...with the following features provided by the Factory Installed Option Board COR Carrier Operated Relay This option causes the Busy Lights and the Repeater function to be controlled by digital Busy signals from the radios The sense of the busy signals from the radios is selectable either High Busy or Low Busy When the COR Option is installed VOX operation of the Busy Lights and Repeater Function is ...

Страница 21: ... main C250C board See the diagram below Refer to Section 7 of this Manual for instructions on setting these jumpers Note that the 200 Ohm jumper position is incorrectly marked on this board The correct position for 200 Ohms is the two pins next to the label J10 Option Board NCS C250C Instruction Manual Rev J Copyright 2004 2010 New Communications Solutions LLC 21 Mic Impedance Jumper Block Electre...

Страница 22: ...ow Absence of a jumper means that a Low signal indicates Busy The presence of a shunt on the jumper block means that a High signal indicates Busy NOTE With the COR Option installed VOX operation of the Busy Lights and Repeater Function is disabled Receive input levels should be set using audio voltage measurements to 200mVp p 300mVp p for each radio NCS C250C Instruction Manual Rev J Copyright 200...

Страница 23: ...ch line and ground as follows On Hook 1000 Ohms Off Hook 5000 Ohms The Hookswitch signals to the radios are on Pin 7 of the modular Radio connectors These signal levels are On Resistance 10 Ohms Off Resistance 1 Megohm Maximum Load Imposed by the Radio Off Voltage 60 V On Current 200mA NCS C250C Instruction Manual Rev J Copyright 2004 2010 New Communications Solutions LLC 23 Add Jumper to Select M...

Страница 24: ...t Mic Input FULL FILENAME NCS C250MANUALREVB1 DOC PAGE 1 OF 1 SEL UnSEL Rad 1 4 Sel Mic Sel SEL MUTE Busy Light Detect LED Drive RAD4 RAD3 RAD2 RAD1 Vol Cont PA Combine PA UnSel MUTE DTMF Decoder DTMF Data PTT Outputs Controller Rad Mic Sel UNSEL EXP LED Brightness Control Amb Light Det PA Front Panel Switches Mic PTT Input RS 232 I O NCS C250C Instruction Manual Rev J Copyright 2004 2010 New Comm...

Страница 25: ...onnecting material is a wide braid or copper strap 14 2 Noise Excessive noise can be caused by many factors The C250C uses state of the art low noise amplifier ICs Nevertheless even these components can add a bit of noise or hiss to an audio signal if not adjusted properly If you seem to have excessive hiss type noise review the setup and level adjustments you ve made to the C250C In some cases in...

Страница 26: ...or all NCS products may be found at www ncsradio com schematics 2 Email us at support ncsradio com Be sure to include all pertinent information e g make and model of radios how they re connected to the C250C detailed description of any problems antenna and grounding configurations etc 3 Telephone us toll free at 888 883 5788 Be near your equipment and have the manuals for your radios available We ...

Страница 27: ...ctor AMP Tyco MATE N LOK 6 pin plug housing PA RPT Select Momentary Pushbutton Switch with Green LED PA Indicator and Red LED RPT Indicator Speaker Mating Connector Pins Qty 10 pins for 18 22 AWG wire Qty 10 pins for 24 26 AWG wire Selected Audio Mute Momentary Pushbutton Switch with Yellow LED Indicator Spare Fuses Qty 2 3A Automatic Mute Momentary Pushbutton Switch with Yellow LED Indicator Powe...

Страница 28: ...efective and covered under the warranty the Customer will bear the cost of shipment for the return of the product to NCS Collect shipments will not be accepted NCS will bear the cost of shipment for return of the product to the Customer after repair replacement Mode of shipment for return to the Customer will be determined by NCS Should examination reveal that the product is not defective NCS will...

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