Cloud CDI-S200 Manual de usuario

CDI-S200

Installation & Setup

Guide

Version 1

CDI-S200 SERIAL INTERFACE CARD

Cloud Electronics Limited

‘Clearly Better Sound’

CLOUD ELECTRONICS LIMITED

CDI-S200 Installation and Setup Guide

140 Staniforth Road  Sheffield S9 3HF  England

Phone +44 (0)114 244 7051  Fax +44 (0)114 242 5462

E-mail [email protected]  WebSite www.cloud.co.uk

CLOUD ELECTRONICS LIMITED

Table of Contents

Section Page

CDI-S200 Serial Interface Card Installation and Setup Guide

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

3 CDI-S200 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

3.1 Baud Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

3.2 Flow Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

4 CX263 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

4.1 Microphone 1 Access Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . .3

4.2 Music Source selection and level control . . . . . . . . . . . . . . . . . . .3

5 Cloud SPv1: Communications Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . .3

5.1 Message Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

5.2 The Destination Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

5.3 The Command Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

5.4 The Command Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

5.5 System Commands and Defaults . . . . . . . . . . . . . . . . . . . . . . . . .6

5.6 Data Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

5.7 Table of Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

5.8 Response Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

5.9 Example Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

5.10 Testing with a Terminal Emulator . . . . . . . . . . . . . . . . . . . . . . .8

5.11 Cable Lengths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

1 Introduction

The CDI-S200 serial interface module is an optional module designed to fit inside the CX263

Stereo/Mono zone mixer to allow RS-232 control of:

wMusic source and level control for each independent zone

wMicrophone 1 paging access

wIndividual microphone mute

wTotal music mute

2 Installation

The jumpers on the CDI-S200 should be configured before it is installed in the CX263 (see section 3 for

configuration details). The CDI-S200 is supplied with two 25mm hex spacers and a 9-pin sub D plug.

The module is connected to the mainboard of the mixer via a ribbon cable. The mainboard connector for

this ribbon cable is marked CON 2 and located close to the output connectors of the CX263.

Instructions

1. Switch off the mains supply to the CX263 and remove the CX263’s power lead.

2. Remove the units top panel.

3. Remove the blanking plate covering the hole for the serial interface card in the rear panel.

4. Remove the hex pillars connected to the 9-pin sub-D socket.

5. Configure the CDI-S200 to operate at the correct baud rate and flow control. It is simplest to do this

before the module is fully installed.

6. Locate and remove the M3 screw in front of CON 2 and the M3 screw directly to the left of it, closest

to the small network of diodes. Both screws are indicated on the silk screen with large arrows.

Keep the screws.

7. Install a 25mm hex pillar into each of the screw holes from the previous step.

8. Connect the module ribbon cable to CON 2 on the mainboard.

9Install the CDI-S200 in the inverted position, such that the 9-pin sub socket fits snugly through the

hole in the rear panel, and the two holes at the back of the card are in line with the hex pillars rising

up from the main board.

10. Re-attach the hex spacers to the 9-pin sub-D socket through the holes in the rear panel.

11. Use the M3 screws saved from step 6 to affix the

rear of the board to the hex pillars rising from the

mainboard.

12. Configure jumpers J19-24 and the rear panel

switches to set the module’s effect on

music signals. In order for the CDI-S200 to

control the music functions in a zone, the rear

panel switches need to be in the ‘REM’ (in)

position and the ‘DG’ (out) position.

13. Configure jumpers J4-6 to enable/disable serial

control of the microphone 1 access switching.

For the CDI-S200 to control access to a zone, the

bypass jumper for that zone must be

disconnected.

14. Replace the top panel

NOTE: PCB jumper markings indicate the position of the link as a filled box.

Current Consumption:

The CX263 can provide up to 80mA of power to internal modules. If this limit is exceeded, the unit will

eventually overheat and then shutdown. The current consumed by a CDI-S200 card is 34mA.

CDI-S200 Serial Interface Card Installation and Setup Guide

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CDI-S200 MODULE

CX263 MAIN PCB

CROSS SECTION VIEW FROM FRONT OF CX263 TOWARDS REAR PANEL

RIBBON CABLE

SPACERS

When the module is configured to use Xon/Xoff or No-Handshaking flow

controls, the only connections required are to the 0V, RX and TX pins.

For the module to operate with RTS/CTS flow control, the Request and

Clear to Send pins must also be connected.

In RS232 terminology, the CDI-S200 is a DCE device. The connection

labels on DCE devices can be deceptive, as in serial communications the

connections are labelled with respect to the Data Terminal (controller).

The TX pin on this diagram carries messages to the module, and the RX

pin carries response messages from the module.

3 CDI-S200 Configuration

The CDI-S200 has several modes of operation, configurable through a series of jumpers located on the

module itself. The settings of these jumpers are clearly marked on the board, with a more detailed

description of each set in the following paragraphs. Settings for the module should be configured to

match the capabilities of the controller. In the factory default mode, the module should be capable of

working satisfactorily without further configuration. The module should only be reconfigured if there are

communications problems between the controller and the module.

The CDI-S200 uses a serial data packet consisting of one start bit, eight data bits and one stop bit. The

CDI-S200 does not support parity, so the controller should be configured to operate without parity

checking.

3.1 Baud Rate

Setting jumpers J1-3 on the module can alter the speed at which the CDI-S200 receives information. The

available settings for this are:

The factory default is for the CDI-S200 to be set to a baud rate of 9600 bits-per-second.

3.2 Flow Control

Setting jumper J4 on the CDI-S200 changes the communications mode between hardware handshaking,

software handshaking and no handshaking modes.

Hardware handshaking utilises the two dedicated lines Clear-To-Send (CTS) and Request-To-Send

(RTS) on the 9-pin sub-D connector. The controller uses the RTS line to indicate that there is some data

to be sent. The module then uses the CTS line to indicate that it is ready to receive the data.

In software handshaking mode, the CDI-S200 will send two specific bytes to the controlling terminal. The

system used for this is called Xon/Xoff where X represents transmitter, so an Xoff signal is sent when the

data flow should pause, and a Xon signal is sent for the data flow to resume. The Xon byte, 0x11, is

equivalent to ctrl-Q in ASCII encoding: DC1. The Xoff byte, 0x13, is equivalent to ctrl-S in ASCII

encoding: DC3.

Baud Rate J1 J2 J3

300 Low High High

1200 High Low Low

2400 High Low High

4800 High High Low

9600 High High High

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Installation continued

1 2

DATA

SET

READY

REQUEST

SEND CLEAR

SEND

GND

RX TX

DATA

TERMINAL

READY

Low

High

J1-3 SETTINGS

9-PIN

SUB-D

Table of jumper settings for J1-3

No handshaking mode means the module uses

neither of the aforementioned methods to

indicate readiness. This is the factory default

setting since in most systems, the module will

be ready to receive data constantly and will not

need to indicate readiness to the terminal.

4 CX263 Configuration

Once the CDI-S200 has been installed within the CX263, the mixer needs to be configured to allow the

CDI-S200 to control it. Configuration of the CX263 allows the installer to limit the functions which are

controllable from the CDI-S200 module.

4.1 Microphone 1 Access Contacts

In order for the CDI-S200 to be able to control microphone 1 access (for paging applications), internal

jumpers J4-6 in the CX263 must be disconnected from the headers. The factory default setting is for

these jumpers to be in place, so that microphone audio is always routed through the mixer.

4.2 Music Source selection and level control

For the CDI-S200 to have any control over the music functions in a zone, the rear panel switches for that

zone need to be in the following configuration:

w‘FR/REM’ switch should be in the ‘REM’ position (in)

w‘DIG/AN’ switch should be in the ‘DIG’ position (out)

It is possible to allow the CDI-S200 control of only one of these functions, by setting internal jumpers

J19-24 and the rear panel switches to the appropriate position. See the table below to determine the

configuration required for your application.

Table of jumper settings and switch settings for music functions on the CX263

Default configuration is for all jumpers to be in the ‘SW’ position.

Level control for the CX263 will always follow the switch configuration on the unit, and it is worth noting

that there is no way to have an analogue remote control of source selection while keeping the level

control under CDI-S200 command.

FR/SW

Jumper

DG/SW

Jumper

DIG/AN

Switch

FR/REM

Switch

Source

Control

Level

Control

N/A N/A N/A FR Front panel Front panel

SW SW AN REM RSL-6 RSL-6

SW N/A DIG REM CDI-S200 CDI-S200

SW DG AN REM CDI-S200 RSL-6/RL-1

FR N/A AN REM Front panel RSL-6/RL-1

FR N/A DIG REM Front panel CDI-S200

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Flow Control continued

XonXoff

RTS/CTS None

J4 SETTINGS

9-PIN

SUB-D

5 Cloud SPv1: Communications Protocol

5.1 Message Structure

All messages to the CDI-S200 use upper case letters, all messages from the CDI-S200 are in lower case.

Commands are enclosed within a header character ("<") and a terminator sequence ("/>"). The CDI-S200

will reset its message decoding software upon reception of a header character, discarding any previously

un-decoded partial messages. The CDI-S200 will decode a message upon reception of the terminator

sequence. If the decoded message is valid it is executed and a response message returned. If the

message is not valid, an error message is returned (details in section 5.8). The message has two fields

separated by a comma, the destination field and the command field.

<destination,command[type][value]/>

5.2 The Destination Field

The destination field is an abbreviated description of the mixer section the command is intended to effect.

In the CX263, there are four possible destinations; music circuitry, the microphone circuitry, the output

zones and the CDI-S200 module itself. Destination field values are:

Zone: Z1, Z2, Z3

Microphone: MI, M1, M2

Music: MU

Module: SY

The destination field is at the start of the message, immediately after the header character ("<"). There

should be no whitespaces or other characters between this field and the header character.

Sub-destinations

Sub-destinations are indicated by putting a full stop between the parent destination and the sub. On the

CX263 and CDI-S200, the only composite destinations are the zones, which have sub-destinations for

the Music functions and for Microphone 1 muting.

To access the music functions in a particular zone, the music sub-destination is accessed as follows:

<Z2.MU,LA120/>

This command sets the music level in Zone 2 to -60dBu, where the value 120 indicates how many ½dB

steps below the maximum level are required. The music destination can also be used globally, but this

will change the associated parameter in all zones on the CX263.

Microphone 1 on the CX263 can be used as either a paging microphone or as a general microphone

input. The CDI-S200 reflects this by allowing both ordinary microphone commands and paging

commands to be sent to the Microphone 1 destination ( M1 ). As a consequence, Microphone 1 can be

muted on a per-zone basis. It is recommended that only one set of commands be used in a system, and

that the paging command is only used in applications where Mic 1 is used as a paging microphone.

<Z3.M1,M/>

This command mutes Microphone 1 in Zone 3 only.

<Z1.MU,LA20/>

DESTINATION SUB-DESTINATION

The destination indicates which section the module should act on. For composite zones, a specific

aspect can be addressed using a sub-destination. In this example the zone 1 output is identified

and the music sub-destination is highlighted.

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5.3 The Command Field

A command field identifies the command to be performed, followed by any parameters, if required. In the

case of the 'Mute', 'Open' and 'Page Release' commands, 'M', 'O' and 'PR', no parameters are required,

since the purpose is just to set a state.

The Paging Access command has a three character field which determines which of the three zones are

selected for paging. An alphabetic character 'O' indicates the zone is not selected, the character 'X'

indicates the zone is to be selected. The characters represent zones one, two and three in that order

from left to right.

<M1,PAOXX/>

This command selects zones two and three for paging from microphone 1 only. Note that on the CX263,

Mic 2 is not a valid destination for the paging command.

The other commands set a parameter for the source or level on a particular zone. Three command types

are available to do this, Absolute ("A"), Up ("U") and Down ("D"). For source select commands, only the

absolute command requires a value; for level commands all command types require a parameter. Using

the absolute command type sets the appropriate parameter to that value. The ranges of possible values

are:

Level: 0-180 where 0 is the highest gain setting.

Source: 0-6 where 0 is off and 1-6 specify line inputs.

The Up and Down command types require a value only if the parameter being changed is a level control.

The value denotes the number of half dB steps that the level should be changed by. It is important to note

that the level value represents a gain reduction so a step down in the level parameter will increase the

audible output.

The command field is separated from the destination field by a comma, which it should immediately

follow.

5.4 The Command Set

Mute, 'M': Mutes a destination.

Open, 'O': Opens (un-mutes) a destination.

Page, 'P': Paging command for microphone (only Mic 1 on CX263).

Level, 'L': Manipulates the level on a zone using the present data format. The level

represents gain reduction in half dB steps from the output level of the

attached unit.

Source, 'S': Manipulates the source of the zone. Values of 0 to 6. Zero is off; values

of 1 to 6 are line inputs.

Commands that require an absolute value in either byte or ASCII form must have the value immediately

following the command type. The command type should immediately follow the command itself.

<Z1.MU,LA20/>

COMMAND

The command field identifies the action to be performed by the module. In this example, a level

control is being executed.

CDI-S200 Serial Interface Card Installation and Setup Guide

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5.5 System Commands and Defaults

It is possible to modify the behaviour of the CDI-S200 by sending the appropriate system commands to

the module. System commands are sent to the system destination, identified as 'SY'. System commands

are available for the following: data formatting, initialisation mode and reset to factory defaults.

The CDI-S200 has two different 'power on' initialisation modes, Default or Previous, these are only used

when the module is powered up. In 'Default' mode, the interface will use the default parameters for each

of the available controls. In 'Previous' mode the interface will use the settings active at power down.

Sending a message of the following syntax will set the default settings:

This message sets the default music level on zone 2 to -10dB.

Factory power on defaults for the CDI-S200 are to set all level controls to -∞, microphone 2 channel to

'Open', microphone 1 channel to ‘Mute’ and the zone sources to Line 1. Music level data format is set to

ASCII character format. The system reset command reverts the module to the factory default settings

and reasserts all the factory defaults as the power-on defaults. The unit will then behave as it did when

it was fresh from the box. The Microphone 1 channel default is ‘Mute’ because this microphone can be

considered as a paging microphone, and in a paging application it is not desirable for the microphone to

be routed to all zones on power-up of the unit. This default can be changed via the following command:

<DM1,O/>

5.6 Data Formats

To provide compatibility with a broad range of controllers, the CDI-S200 will accept two different

parameter formats in level commands. The two formats supported are ASCII characters and byte codes.

Default is for the CDI-S200 to accept ASCII characters as data, since this is human readable. It is

recommended that the byte data format only be used for controllers which will send values only in byte

form. To set the data type for level commands, a system command must be sent to the module in the

following format:

<SY,Lformat/>

where format identifies the desired data type. Values for the format field are:

'C' (0x43):- ASCII character format

'B' (0x42):- Byte format

Responses to commands in byte format may not be human readable since the bytes being returned may

not correspond to a displayable ASCII character. EG a value of 0x41 (65) maps to ASCII 'A' and so could

be printable; a value of 0x7 maps to the ASCII BELL control character and would cause the terminal to

beep!

<DZ2.MU,LA20/>

DEFAULT

IDENTIFIER

The default identifier is only inserted if the value to be set is an

initialisation default.

<Z1.MU,LA20/>

TYPE AND

VALUE

The type field identifies how a command is to be performed. Available types for signal manipulation

are absolute (shown here), up and down.

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Command Set continued

5.7 Table of Commands

*This command will work with all possible microphone destinations; MI, M1 and M2

** Up/Down commands sent to a global destination will return a lower case copy of the message.

$This command works with Microphone 1 only

5.8 Response Messages

Response messages are returned by the CDI-S200 to help system programmers in debugging the

system, to provide a means of error checking for the system and to supply feedback to controllers that

need to update their display based on the mixer settings. Response messages always return the

resulting parameter value if successfully executed unless the command is sent to a global destination.

For system, mute, open, default and global destination commands, the result is always a lowercase

mirror of the message sent to the module; for output specific source and level commands, the result is

always a lowercase absolute value message containing the resulting value.

If the module recieves a message which it cannot execute, an error message is returned. Error

messages are always valid, i.e. started and ended correctly and the first character is always an

exclamation mark. This is immediately followed by a type identifier showing the fault condition.

<!error_id[constructed_response]/>

Some error messages will contain a constructed response message to indicate where the failure

occurred in the process.

CDI-S200 Serial Interface Card Installation and Setup Guide

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Command

Identifier

Example Message

Zone Music Microphone

Global Music

Mute

M<Z1.MU,M/> <MI,M/>*

<MU,M/>

Open

O<Z2.MU,O/> <MI,O/>*

<MU,O/>

Source

Select

Up SU <Z1.MU,SU/>

N/A

<MU,SU/>**

Down SD <Z2.MU,SD/>

<MU,SD/>**

Absolute SA <Z3.MU,SA4/>

<MU,SA3/>

Level

Up LU <Z1.MU,LU6/>

N/A

<MU,LU10/>**

Down LD <Z2.MU,LD6/>

<MU,LD10/>**

Absolute LA <Z3.MU,LA20/>

<MU,LA60/>

Page

Access PA

N/A

<M1,PAOXX/>

N/A

Release PR <M1,PR/>

DEFAULT COMMANDS

Level

D[dest],LA <DZ1.MU,LA12/>

N/A

<DMU,LA12/>

Source

D[dest],SA <DZ2.MU,SA4/>

<DMU,SA3/>

Mute/Open

D[dest],M <DZ3.MU,M/> <DMI,O/>*

<DMU,M/>

SYSTEM COMMANDS

Reset

R<SY,R/>

IP <SY,IP/>

Default

ID <SY,ID/>

Level ASCII

LC <SY,LC/>

Level Byte

LB <SY,LB/>

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