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Section 2

Installation

2.1 Mounting

The unit can be mounted in a standard 19 "rack or on a ta-

ble. In the latter case it is advisable to place the rubber

feet in the base of the processor. Do not place the unit on

an unstable surface or shelf; The unit may fall, causing in-

jury to persons and damage to the unit.

The   ambient   temperature   should   be   between   5ºC   and

40ºC. Avoid direct sunlight on the processor or the prox-

imity of heat sources.
The openings and grooves allow ventilation and air circu-

lation. These openings must not be blocked or covered,

so as not to interfere with the cooling of the internal com-

ponents of the equipment.

The   542APC   has   internal   protection   against   RF   fields,

which allows them to be mounted close to transmitters

(AM or FM). Avoid the presence of strong  electromag-

netic fields (power transformers, motors, etc.).

2.1.1 Power supply

CHECK

 the position of the switch 

AC VOLTAGE

 

[1]

according to the correspondent voltage:

200/240V or 100/130V

The unit is switched on by a main switch  

-

3

-

. The mains

voltage must be kept within a range of less than 10%. Oth-

erwise use fast acting voltage stabilizers (ferroresonance

or electronic). The unit has a general fuse 

-

4

 

 

of 1A.

Do not mix the power cord with the audio cables, espe-

cially with those that carry analog audio.

Do   not   use   adapters   that   will   void   the   power   cord

ground

 -

2

-

 Remember that the entire audio system must

have a secure ground. It is recommended to follow the

current regulations (Article 810 of the National Electric-

ity Code (NEC) -USA- ANSI / NFPA No. 70-1984). These

provide information for proper grounding.

2.2 REAR PANEL

Figure 1- Rear Panel

2.2.1 Analog audio connections 

2.2.1.1 XLR inputs and outputs

542APC has one balanced stereo input  

-

5

 

 

and one bal-

anced stereo output  

-

9

-

  using XLR. The inputs are elec-

tronically balanced.
The analog XLR connects as is standard:

Balanced XLR

1 = GND
2 = Balancead signal (+)  
3 = Balanced signal (-)

Unbalanced XLR
Inputs:     

Live = 2

  GND = Joint 1 and 3

Outputs: 

Live (+) to pin 2; 

leave pin 

 

 3 

   unconnected

 

 

GND = pin 1

Take special care to keep the phase in balanced 

wiring. 

Use   two   pair   shielded   cable,   preferably   with   double

shielding. It is recommended to keep the length less than

30 meters, although in special cases can reach 100 me-

ters accepting a reduced loss at high frequencies.

2.2.1.2  RJ45 inputs and outputs

With the advent of audio over IP (AoIP) various manufac-

turers adopt RJ45 connectors and shielded twisted pair

cable   to   replace   traditional   audio   connectors.   A   single

RJ45 connector contains two balanced lines, reducing the

number of connectors and the number of connectors. In

addition, the use of structured cable facilitates installation

due to the availability of components and tools used in

data networks, avoiding welding.
At the end of the STP cable the connection to the audio

device still requires standard audio connectors. Solidyne

provides several adapter patch cords short with male  or

female RJ-45 at one end and the necessary audio connec-

tor at the other end.
All RJ45 audio connections are compatible with the 

Stu-

dioHub

 cables (

http://www.studiohub.com/

).

The   balanced   inputs

   

6  

 

and   unbalanced   outputs  

10

over RJ45  connects  using  shielded  twisted  pair (STP)

CAT5. The following table shows the signal distribution

of RJ45 connector.

Audio Processing Core -

 

SOLIDYNE 542

APC 

Page 11

Summary of Contents for 542 APC

Page 1: ......

Page 2: ...Page 2 Audio Processing Core SOLIDYNE 542APC...

Page 3: ...Time Graph 19 3 4 3 SETUP mode 19 3 5 AUDIO INPUTS 19 3 5 1 GAIN 19 3 5 2 TRIM R 19 3 5 3 ST MONO 19 3 5 4 Main source and fold back 19 3 5 5 Pre filtering 20 3 6 AUDIO OUTPUTS 20 3 7 FM output MPX 2...

Page 4: ...miter 36 4 7 3 MPX cliper 36 4 9 Manage the presets 36 4 8 1 Create a preset 36 4 9 2 Preset Manager 36 4 8 2 1 Export import presets 37 Section 5 Units with option AoIP streaming 39 5 1 Streaming for...

Page 5: ...porates an FM tuner and a real time signal analysis stage that allows the user to monitor various aspects of the transmission and the processor itself modulation depth pilot tone level RDS and others...

Page 6: ...Page 6 Audio Processing Core SOLIDYNE 542APC...

Page 7: ...StudioHub c compatible and digital inputs AES3 and IP streaming optional To switch the input proceed as follows SET UP The analog inputs are set to operate at 18 dBfs with 4dBu nominal input level Wh...

Page 8: ...receiving antenna CALIBRATION TONES Using a computer on the same LAN that the 542APC run a WEB browser preferred Google Chrome and enter the IP showed in the display to access to the 542 s WEB pages S...

Page 9: ...Bright Bass Compression Density Loudness WIZARD also allows to enable disable and change the intensity of the ENHANCERS stages Parametric EQ Bass enhancer Stereo enhancer Remote technical assistance...

Page 10: ...Page 10 Audio Processing Core SOLIDYNE 542APC...

Page 11: ...de information for proper grounding 2 2 REAR PANEL Figure 1 Rear Panel 2 2 1 Analog audio connections 2 2 1 1 XLR inputs and outputs 542APC has one balanced stereo input 5 and one bal anced stereo out...

Page 12: ...ION 5 Models with the optional AoIP 2 3 MPX outputs The 542APC features dual MPX output 12 with indepen dent level adjustment The output connectors are BNC type 75 ohm coaxial ca ble RG59 standard on...

Page 13: ...816 mixing consoles UNIDEX series 2600 Series or the link Solidyne ADA102 For other consoles the con trol can be solved using a data relay Relay of the link Study to Transmitting Plant 2 7 Updates and...

Page 14: ...han 2 seconds WARNING DO NOT turn off or disconnect the processor from the LAN during this operation It can cause damage non reparable by the user WARNING AVOID TO UPDATE THE FIRMWARE USING WI FI NETW...

Page 15: ...t to a local network the Web Control Panel are accessible from a computer by enter ing the processor s IP address in a web browser c Lite Commander It is an application that runs on a computer and acc...

Page 16: ...o processed de em phasized To choose an audio source push the wheel and ro tate to navigate the options Push again to confirm To leave the screen HEADPHONES press and hold the wheel until see a menu w...

Page 17: ...sate for example a low level telephone communi cation This is achieved with the quick window settings as if the overall WB AGC times are very fast it will cause con stant and audible level fluctuation...

Page 18: ...re leasing the compression threshold of the LOW band and adjusting the limiter clipper of that band to almost 100 0 25dB XtendedBass uses the SuperBass stage to extend and reinforce low frequencies in...

Page 19: ...n all screen modes both in the MONITORING screen and in the SETUP screen It contents the following indicators Signal level on the active input RMS and peak in dBFS Processing meters status of the Enha...

Page 20: ...lick on the main menu the option AUDIO INPUT Each input has the following controls 3 5 1 GAIN Adjusts the level of the input signal in a range of 14 dB For the analog inputs the zero value corresponds...

Page 21: ...evel and d emphasis compensation 1 XLR analog output 2 RJ45 analog output 3 AES 3 digital output 4 Streaming over Ethernet optional in AoIP models Figure 18 Outputs 3 7 FM output MPX 542 APC includes...

Page 22: ...carrier is continuously modulated around 100 The BS 412 sets a maximum allowed value for the power in MPX in order to reduce the density of the modulating signal but maintaining the maximum modulation...

Page 23: ...sets eliminates compromises as each preset will be optimal for that type of music or voice This also reduces the auditory fatigue associated with radio stations that use rigid processors without compu...

Page 24: ...the preset for VOICES which will have the MONO flag active To know how to switch the preset by GPI see section 2 6 GPI Manual switching from a computer using the Lite Commander application requires re...

Page 25: ...reception quality of RDS data A value of 0 indicates that no errors were detected and 100 indicates that it is not possible to decode the RDS data RDS DATA Displays texts transmitted by RDS Figure 29...

Page 26: ...to the previ ously tuned station 3 10 1 RDS basic settings The configuration and control of the RDS is carried out by IP through the ETHERNET port of the 542APC see 11 in Figure 1 The basic RDS parame...

Page 27: ...ences choose the tab General 4 Change Connection type to Ethernet TCP IP 5 In the field Port enter the TCP value that was de fined at the 542APC Default is 9762 The TCP for 542APC is set using the Con...

Page 28: ...e left menu slides up automatically when the mouse is over ENABLE TOOLTIPS Enables pop up balloons with indica tions that appear over some meters 3 11 4 NETWORK Network settings By default the 542PAPC...

Page 29: ...to power cut System Errors For internal use Only system events are logged in the SYSLOG 3 12 2 Status and Logs SYSTEM TIME When the computer is connected to a LAN with Internet access the computer kee...

Page 30: ...Page 30 Audio Processing Core SOLIDYNE 542APC...

Page 31: ...ys start from the preset that is closest to the desired characteristics For example if you are looking for a high loudness pro cessing it is not a good idea to start with a soft preset SOFT PROCESS an...

Page 32: ...nge of frequencies of the processed signal that is added Intensity The level of the processed signal added to the dry signal When using preset switching for voices it is recom mended that the presets...

Page 33: ...in that music that is character ized by great changes between pianos and forts That is to say if after a strong passage there is a subtle input of an instrument the AGC will be frozen in its previous...

Page 34: ...he compressor of that band works in excess or increase it to reach the compres sion threshold For this the MB AGC defines a target level for each band and compensates the gains for the signal to remai...

Page 35: ...ua tion based on the compression ratio Lowering the threshold increases the compression but de creases the energy in the band as the compressor attenu ates more signal peaks To compensate the attenuat...

Page 36: ...the attack time the limiter does not actuate and lets the peaks of the signal pass to the clippers which will contain them with soft clipping Very fast attack times minimize clipping but very fast at...

Page 37: ...5 to 1dB are tolerable for most cases Values greater than 1dB can be used but produce a harsher sound which some refer to as FM sound FM style Use this tech nique only if it is necessary to achieve hi...

Page 38: ...Export import presets To export a preset proceed as follows Select in the list the preset to be exported Press the EXPORT button Download The preset will be exported to a file named pre set_name 542...

Page 39: ...ctions diagram Figure 41 Basic diagram for streaming connection 5 1 2 Streaming settings Step 1 Connect the ETHERNET AoIP 15 port to the network us ing a CAT5 UTP cable To configure the streaming op t...

Page 40: ...field Input Output audio level Real level of audio signals in dB Remote inputs Status of control signals of remote unit studio When a line is active the corresponding box will light green Relay 1 4 W...

Page 41: ...define the behavior of the GPIO 5 1 7 About audio formats 542APC AoIP supports the following audio streams MPEG1 MPEG2 only half duplex PCM MSB LSB first The CODEC used is defined in the encoder hard...

Page 42: ...Page 42 Audio Processing Core SOLIDYNE 542APC...

Page 43: ...Asymmetry cancelling 5 1 cancelling reduction using Khann Bonello method Expander Software controlled with user settings Multiband compressors From 4 to N bands depending of software version used Line...

Page 44: ...tures include dynamic PS parsing scrolling fixed messages scheduling and reading from HTTP DATA PORT SPEED 2400 9600 BPS SUPPORTED SERVICES PI Program Identification M S Music Speech PS Program Servic...

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